Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income tax benefits, related to discontinued operations		$ 200	$ 1,200
Increased deferred tax assets ultimately realized	$ 200
Valuation allowance decreased during period	200
Current deferred tax liabilities relating primarily to foreign employment tax subsidy	600	600
Cumulative undistributed earnings of subsidiary	12,700
Unrecognized interest or penalties
Accrued interest and penalties
Federal [Member]
Net operating loss carryforwards	$ 600
Operating expire term	expire at the end of 2024
Federal [Member] | Acquire Subsidiary [Member]
Net operating loss carryforwards	$ 600
State [Member]
Net operating loss carryforwards	$ 23,900
Operating expire term	remainder expire between 2020 and 2031
State [Member] | Research Tax Credit Carryforward [Member]
Net operating loss carryforwards	$ 700
Operating expire term	no expiration date
State [Member] | Acquire Subsidiary [Member]
Net operating loss carryforwards	$ 3,400
State [Member] | Expire Between 2017 and 2019 [Member]
Net operating loss carryforwards	$ 500
Operating expire term	expire between 2017 and 2019