Provision (Benefit) for Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Effective income tax rate reconciliation, percent	21.00%	21.00%
Deferred Tax Assets, Valuation Allowance	$ 67,578	$ 82,618
Operating Loss Carryforward, Income Tax Limitation	80.00%
Tax Year 2015 [Member]
Operating Loss Carryforwards	$ 114,600
Tax Year 2017 [Member]
Operating Loss Carryforwards	159,600
Tax Year 2021
Operating Loss Carryforwards	$ 188,300