Provision (Benefit) for Income Taxes (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 22, 2017
Effective income tax rate reconciliation, percent	21.00%	35.00%
Deferred Tax Assets, Valuation Allowance	$ 42,335	$ 58,398
Operating Loss Carryforward, Income Tax Limitation	80.00%
Previous Federal Corporate Tax Rate			0.35
New Federal Corporate Tax Rate			0.21
Tax Year 2015 [Member]
Operating Loss Carryforwards	$ 115,000
Tax Year 2017 [Member]
Operating Loss Carryforwards	160,000
Tax Year 2018 [Member]
Operating Loss Carryforwards	$ 67,000