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Income Taxes Income taxes (Details) - USD ($)
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Unrecognized Tax Benefit [Roll Forward]      
Beginning Balance $ 1,511,000 $ 361,000 $ 1,407,000
Additions related to current period tax positions 0 1,150,000 0
Reductions for tax positions of prior years 361,000 0 1,046,000
Ending Balance 1,150,000 1,511,000 361,000
Valuation Allowance 2,230,000 649,000  
Deferred Tax Liabilities, Undistributed Foreign Earnings 3,025,000 2,597,000  
Deferred Income Tax Expense (Benefit) 5,144,000 (2,822,000) (20,166,000)
Unrecognized tax benefits that would impact the effective tax rate $ 1,150,000 $ 1,511,000 $ 361,000