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

Quarterly report pursuant to Section 13 or 15(d)

Sales (Details)

Sales (Details) - USD ($) $ in Thousands	6 Months Ended
Sales (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Jun. 30, 2014
Sales
Concentration Risk, Percentage		100.00%
Disposal fees	$ 7	$ 209
Disposal Fees Concentration Risk Percentage		1.40%
Recognition of gain from sale of deliveries under assignment		$ 1,254
Recognition of gain from sale of deliveries under assignment, Percentage		8.20%
Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net	25,593	$ 13,920
Concentration Risk, Percentage		54.40%
Company A [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net	6,098	$ 4,127
Concentration Risk, Percentage		26.80%
Company B [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net	5,094	$ 7,197
Concentration Risk, Percentage		46.80%
Company C [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net	2,555
Concentration Risk, Percentage		0.00%
Company D [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net		$ 2,596
Concentration Risk, Percentage		16.90%
Company A, B, C, D [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Sales Revenue, Goods, Net	13,747	$ 13,920
Concentration Risk, Percentage		90.50%
Company E [Member]
Sales
Sales Revenue, Goods, Net	$ 11,846
Concentration Risk, Percentage		0.00%
Customer Concentration Risk [Member]
Sales
Concentration Risk, Percentage	100.00%
Disposal Fees Concentration Risk Percentage	0.00%
Recognition of gain from sale of deliveries under assignment, Percentage	0.00%
Customer Concentration Risk [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	100.00%
Customer Concentration Risk [Member] \| Company A [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	23.70%
Customer Concentration Risk [Member] \| Company B [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	19.90%
Customer Concentration Risk [Member] \| Company C [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	10.00%
Customer Concentration Risk [Member] \| Company D [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	0.00%
Customer Concentration Risk [Member] \| Company A, B, C, D [Member] \| Sales Revenue, Goods, Net [Member]
Sales
Concentration Risk, Percentage	53.70%
Customer Concentration Risk [Member] \| Company E [Member]
Sales
Concentration Risk, Percentage	46.30%