Income Taxes (Details 4) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Reduction of net operating loss carryforwards	$ 309	$ 309
Reduction of tax credit carryforwards
Total reductions of deferred tax assets	309	309
Noncurrent tax liability (reflected in Other long-term liabilities)		1,331
Total liability for unrecognized tax benefits	$ 309	$ 1,640