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Fair Value Measurements (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Warrant liability	$ 170	$ (210)
Warrant [Member] | Securities Purchase Agreement [Member]
Term expiration date	Jun. 21, 2022	Jun. 21, 2022
Exercise price	$ 2.05	$ 2.05
Volatility rate	90.00%	90.00%
Risk-free interest rate	2.15%	2.01%
Stock price	$ 1.50
Warrant liability	$ 1,200
Warrant exercise price	$ 1.20

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Exercise price per share or per unit of warrants or rights outstanding.

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-Publisher FASB
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-Topic 235
-SubTopic 10
-Section S99
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Amount of expense (income) related to adjustment to fair value of warrant liability.

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Agreed upon price for the exchange of the underlying asset.

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Risk-free interest rate assumption used in valuing an instrument.

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Weighted average expected volatility of stock price.

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