Accounts Payable and Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Accounts payable and accruals	$ 448	$ 599
Accrued employee compensation and benefits	958	545
Accounts payable and other accrued liabilities	1,406	1,144
Accrued vacation	200	100
Withholding taxes and benefits payable	700	400
Velardena properties
Accounts payable and accruals	300	300
Accrued income taxes net of VAT credits receivable	200
Withholding taxes and benefits payable	300	200
Corporate, Exploration & Other
Accounts payable and accruals	$ 200	$ 300