Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Increase (decrease) in valuation allowance	$ (1,100)	$ (9,200)
Net operating loss carryforwards	$ 79,000	$ 77,000
Capital loss carryforwards expiration period start		2019
Capital loss carryforwards expiration period end		2037
U.S. corporate tax rate	34.00%	21.00%
Tax Year 2018 [Member]
Net operating loss carryforwards	$ 2,000
Change In Enacted Rate [Member]
Increase (decrease) in valuation allowance	(9,300)
Expiring Operating Loss Carryforwards [Axis]
Increase (decrease) in valuation allowance	$ 1,600	$ 0