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

Mineral Properties (Details) $ in Thousands	3 Months Ended
Mineral Properties (Details) $ in Thousands	Mar. 31, 2021 USD ($)
Balance at beginning of period	$ 39,184
Depletion and amortization	(509)
Balance at end of period	38,675
Lost Creek Property [Member]
Balance at beginning of period	6,276
Depletion and amortization	(509)
Balance at end of period	5,767
Pathfinder Properties [Member]
Balance at beginning of period	19,730
Depletion and amortization	0
Balance at end of period	19,730
Other U.S. Properties [Member]
Balance at beginning of period	13,178
Depletion and amortization	0
Balance at end of period	$ 13,178