Warrants (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Warrants [Line Items]
Proceeds from warrant exercises	$ 1	$ 1
Warrants [Member]
Warrants [Line Items]
Issuance of common stock shares for additional warrants exercised	19,621	20,927
Proceeds from warrant exercises	$ 1	$ 1
Issuance of common stock	906	967