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Liquidity (Details Narrative) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Working capital	$ 3,900		$ 3,900
Accumulated deficit	127,506		127,506		$ 126,088
Net loss	1,175	$ (336)	1,417	$ 404
Cash and cash equivalents	$ 2,758	$ 1,987	$ 2,758	$ 1,987	$ 3,277	$ 2,518

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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