Provision (Benefit) for Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Effective income tax rate reconciliation, percent	21.00%	21.00%
Partial Release of Valuation Allowance	$ 21,600
Deferred Tax Assets, Valuation Allowance	$ 0	$ 42,335
Operating Loss Carryforward, Income Tax Limitation	80.00%
Tax Year 2015 [Member]
Operating Loss Carryforwards	$ 93,000
Tax Year 2017 [Member]
Operating Loss Carryforwards	156,000
Tax Year 2018 [Member]
Operating Loss Carryforwards	67,000
Tax Year 2019 [Member]
Operating Loss Carryforwards	$ 400