Quarterly report pursuant to Section 13 or 15(d)

Accounts Receivable (Details)

v2.4.1.9
Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Accounts Receivable    
Trade receivables $ 5us-gaap_AccountsReceivableNetCurrent $ 19us-gaap_AccountsReceivableNetCurrent
Other receivables 8us-gaap_OtherReceivablesNetCurrent 9us-gaap_OtherReceivablesNetCurrent
Total accounts receivable 13us-gaap_ReceivablesNetCurrent 28us-gaap_ReceivablesNetCurrent
Other Companies [Member]    
Accounts Receivable    
Trade receivables $ 5us-gaap_AccountsReceivableNetCurrent
/ urg_TradeAccountsReceivableAxis
= urg_OtherCompaniesMember
$ 19us-gaap_AccountsReceivableNetCurrent
/ urg_TradeAccountsReceivableAxis
= urg_OtherCompaniesMember