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Leases Supplementary Balance Sheet Information (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Other assets (net of lease impairment of $1,001 at December 31, 2019) $ 21,659 $ 23,099
Operating Lease, Right-Of-Use Asset, Impairment   1,001
Other current liabilities 7,469 7,268
Other long-term liabilities 14,756 17,096
Total operating lease liabilities 22,225 24,364
Property, plant and equipment, gross 1,762 1,684
Accumulated depreciation (825) (479)
Property, plant and equipment, net 937 1,205
Current portion of long-term debt 197 346
Long-term debt 390 490
Total finance lease liabilities $ 587 $ 836
Weighted Average Remaining Lease Term [Abstract]    
Operating leases 3 years 9 months 3 days 4 years 5 months 4 days
Finance leases 3 years 2 months 19 days 3 years 7 months 9 days
Leases Weighted Average Discount Rate [Abstract]    
Operating leases 5.00% 4.84%
Finance leases 4.93% 4.70%
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesCurrent us-gaap:OtherLiabilitiesCurrent
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List] us-gaap:OtherLiabilitiesNoncurrent us-gaap:OtherLiabilitiesNoncurrent