|
Shareholders' Equity and Capital Stock - Options by price range (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
|
3 Months Ended |
|
|
Mar. 31, 2015
|
Dec. 31, 2014
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 1.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
$ 1.12us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
|
| Number of options outstanding |
7,971,461us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
8,468,614us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
|
| Stock Option Exercise Price Range One [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 2.27us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeOneMember
|
|
| Number of options outstanding |
1,227,034us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeOneMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
9 months 18 days
|
|
| Number of options exercisable |
1,227,034us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeOneMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
9 months 18 days
|
|
| Expiry |
Jan. 28, 2016
|
|
| Stock Option Exercise Price Range Two [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 1.24us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwoMember
|
|
| Number of options outstanding |
545,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwoMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 3 months 18 days
|
|
| Number of options exercisable |
545,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwoMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 3 months 18 days
|
|
| Expiry |
Jul. 07, 2016
|
|
| Stock Option Exercise Price Range Three [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThreeMember
|
|
| Number of options outstanding |
657,782us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThreeMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 4 months 24 days
|
|
| Aggregate Intrinsic Value, Outstanding |
$ 11us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThreeMember
|
|
| Number of options exercisable |
657,782us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThreeMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 4 months 24 days
|
|
| Aggregate Intrinsic Value, Exercisable |
11us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThreeMember
|
|
| Expiry |
Sep. 09, 2016
|
|
| Stock Option Exercise Price Range Four [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.92us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourMember
|
|
| Number of options outstanding |
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 7 months 6 days
|
|
| Aggregate Intrinsic Value, Outstanding |
5us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourMember
|
|
| Number of options exercisable |
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 7 months 6 days
|
|
| Aggregate Intrinsic Value, Exercisable |
5us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourMember
|
|
| Expiry |
Oct. 24, 2016
|
|
| Stock Option Exercise Price Range Five [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.72us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFiveMember
|
|
| Number of options outstanding |
956,382us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFiveMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 9 months 18 days
|
|
| Aggregate Intrinsic Value, Outstanding |
189us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFiveMember
|
|
| Number of options exercisable |
956,382us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFiveMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 9 months 18 days
|
|
| Aggregate Intrinsic Value, Exercisable |
189us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFiveMember
|
|
| Expiry |
Jan. 12, 2017
|
|
| Stock Option Exercise Price Range Six [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 1.10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSixMember
|
|
| Number of options outstanding |
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSixMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 9 months 18 days
|
|
| Number of options exercisable |
200,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSixMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 9 months 18 days
|
|
| Expiry |
Feb. 01, 2017
|
|
| Stock Option Exercise Price Range Seven [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.93us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSevenMember
|
|
| Number of options outstanding |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSevenMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
1 year 10 months 24 days
|
|
| Aggregate Intrinsic Value, Outstanding |
2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSevenMember
|
|
| Number of options exercisable |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSevenMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
1 year 10 months 24 days
|
|
| Aggregate Intrinsic Value, Exercisable |
2us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeSevenMember
|
|
| Expiry |
Mar. 01, 2017
|
|
| Stock Option Exercise Price Range Eight [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.60us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeEightMember
|
|
| Number of options outstanding |
1,310,758us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeEightMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
2 years 8 months 12 days
|
|
| Aggregate Intrinsic Value, Outstanding |
395us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeEightMember
|
|
| Number of options exercisable |
1,310,758us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeEightMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
2 years 8 months 12 days
|
|
| Aggregate Intrinsic Value, Exercisable |
395us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeEightMember
|
|
| Expiry |
Dec. 07, 2017
|
|
| Stock Option Exercise Price Range Nine [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.61us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeNineMember
|
|
| Number of options outstanding |
587,059us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeNineMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
3 years 1 month 6 days
|
|
| Aggregate Intrinsic Value, Outstanding |
172us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeNineMember
|
|
| Number of options exercisable |
587,059us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeNineMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
3 years 1 month 6 days
|
|
| Aggregate Intrinsic Value, Exercisable |
172us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeNineMember
|
|
| Expiry |
Apr. 25, 2018
|
|
| Stock Option Exercise Price Range Ten [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.98us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTenMember
|
|
| Number of options outstanding |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTenMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
3 years 3 months 18 days
|
|
| Number of options exercisable |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTenMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
3 years 3 months 18 days
|
|
| Expiry |
Aug. 01, 2018
|
|
| Stock Option Exercise Price Range Eleven [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.95us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeElevenMember
|
|
| Number of options outstanding |
956,232us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeElevenMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
3 years 8 months 12 days
|
|
| Number of options exercisable |
726,950us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeElevenMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
3 years 8 months 12 days
|
|
| Expiry |
Dec. 27, 2018
|
|
| Stock Option Exercise Price Range Twelve [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 1.33us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwelveMember
|
|
| Number of options outstanding |
100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwelveMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
4 years
|
|
| Number of options exercisable |
54,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeTwelveMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
4 years
|
|
| Expiry |
Mar. 31, 2019
|
|
| Stock Option Exercise Price Range Thirteen [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 0.81us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThirteenMember
|
|
| Number of options outstanding |
1,031,214us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThirteenMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
4 years 8 months 12 days
|
|
| Aggregate Intrinsic Value, Outstanding |
124us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThirteenMember
|
|
| Number of options exercisable |
103,678us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThirteenMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
4 years 8 months 12 days
|
|
| Aggregate Intrinsic Value, Exercisable |
12us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeThirteenMember
|
|
| Expiry |
Dec. 12, 2019
|
|
| Stock Option Exercise Price Range Total [Member] |
|
|
| Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] |
|
|
| Exercise price |
$ 1.05us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourteenMemberMember
|
|
| Number of options outstanding |
7,971,461us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourteenMemberMember
|
|
| Weighted- average remaining contractual life (years), Outstanding |
2 years 6 months
|
|
| Aggregate Intrinsic Value, Outstanding |
898us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourteenMemberMember
|
|
| Number of options exercisable |
6,768,643us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourteenMemberMember
|
|
| Weighted- average remaining contractual life (years), Exercisable |
2 years 2 months 12 days
|
|
| Aggregate Intrinsic Value, Exercisable |
$ 786us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
/ us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis
= urg_StockOptionExercisePriceRangeFourteenMemberMember
|
|