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Credit Facilities and Long-Term Debt, Total Debt Outstanding (Details)
$ in Thousands, zł in Millions
Dec. 31, 2020
USD ($)
Dec. 31, 2020
PLN (zł)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
PLN (zł)
Credit Facilities and Long-Term Debt [Abstract]        
Revolving credit facilities $ 10,000   $ 52,460  
Other [1] 232   4,585  
Total debt 10,232   57,045  
Current maturities of debt 10,135   56,916  
Long-term debt 97   129  
HSBC Bank Polska S.A. [Member]        
Line of Credit Facility [Abstract]        
Overdraft facility $ 100 zł 0.4 $ 4,400 zł 16.7
[1] Other includes borrowings under our Polish overdraft facility of Zloty 0.4 million (approximately $0.1 million) and Zloty 16.7 million (approximately $4.4 million) as of December 31, 2020 and 2019, respectively.