Subsequent Events (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	Feb. 16, 2017	Feb. 09, 2017	Jan. 19, 2017	Apr. 04, 2016	Feb. 04, 2016
Gross proceeds from offering cost				$ 1,200	$ 800
Subsequent Event [Member]
Repay of principal and accrued unpaid interest		$ 5,500
Gross proceeds from offering cost			$ 9,700
Sale of common stock, shares			1,399,140
Sale of common stock, price per share			$ 2.01
Pre-funded warrants to purchase of common stock, shares			3,426,731
Pre-funded common stock purchase warrants price, per share			$ 2.00
Warrant exercise price, per share			$ 0.01
Subsequent Event [Member] | Aspire Capital [Member]
Gross proceeds from offering cost	$ 4,500
Sale of common stock, shares	2,100,000
Sale of common stock, price per share	$ 1.58
Pre-funded warrants to purchase of common stock, shares	748,101
Pre-funded common stock purchase warrants price, per share	$ 1.57
Warrant exercise price, per share	$ 0.01