Ur-Energy Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Notes Payable (Details)

v3.3.0.814

Notes Payable (Details)								9 Months Ended		12 Months Ended
Notes Payable (Details)	Dec. 31, 2015 USD ($)	Oct. 15, 2015 USD ($)	Sep. 19, 2014 USD ($)	Mar. 14, 2014 USD ($)	Dec. 19, 2013 USD ($)	Oct. 15, 2013 USD ($)	Jun. 24, 2013 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2013 USD ($)	Oct. 23, 2013 item
Debt Instrument [Line Items]
Proceeds from Issuance of Debt									$ 5,000,000
Sweetwater IDR Bond [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Long-term Debt						$ 34,000,000
Debt Instrument, Periodic Payment, Principal								$ 29,934,000
RMBAH First Loan Facility [Member]
Debt Instrument [Line Items]
Fixed interest rate (as a percent)								8.75%
Proceeds from Issuance of Debt				$ 1,500,000	$ 5,000,000		$ 20,000,000
Repayments of Debt										$ 20,000,000
Line of Credit Facility, Remaining Borrowing Capacity				3,500,000
Proceeds from Lines of Credit	$ 3,500,000.0	$ 3,500,000.0	$ 3,500,000
Debt Instrument, Periodic Payment, Principal								$ 5,125,000
Maximum Borrowing Capacity				$ 10,000,000
Due Quarterly Commencing From January One Two Thousand Fourteen [Member] \| Sweetwater IDR Bond [Member]
Debt Instrument [Line Items]
Fixed interest rate (as a percent)											5.75%
Due Quarterly Commencing From January One Two Thousand Fifteen [Member] \| Sweetwater IDR Bond [Member]
Debt Instrument [Line Items]
Number of quarterly installments \| item											28
Due Quarterly Commencing From June Thirty Two Thousand Fourteen [Member] \| RMBAH First Loan Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Periodic Payment, Principal								$ 810,000

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Represents the total number of installment payments to be made on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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