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Revenue, Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Disaggregation of revenue [Abstract]        
Net sales $ 10,637 $ 7,300 $ 28,263 $ 22,832
United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 8,765 6,287 23,714 18,303
International [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,872 1,013 4,549 4,529
Food Service Technology [Member]        
Disaggregation of revenue [Abstract]        
Net sales 3,282 2,349 9,103 4,924
Food Service Technology [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 3,065 2,081 8,616 4,376
Food Service Technology [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales 217 268 487 548
POS Automation [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,188 742 3,608 2,781
POS Automation [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,188 739 3,600 2,774
POS Automation [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales 0 3 8 7
Casino and Gaming [Member]        
Disaggregation of revenue [Abstract]        
Net sales 4,036 2,009 10,368 8,300
Casino and Gaming [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 2,656 1,552 7,058 5,080
Casino and Gaming [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,380 457 3,310 3,220
Lottery [Member]        
Disaggregation of revenue [Abstract]        
Net sales     0 817
Lottery [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales     0 817
Lottery [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales     0 0
Printrex [Member]        
Disaggregation of revenue [Abstract]        
Net sales 160 107 431 232
Printrex [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 0 5 52 72
Printrex [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales 160 102 379 160
TransAct Services Group [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,971 2,093 4,753 5,778
TransAct Services Group [Member] | United States [Member]        
Disaggregation of revenue [Abstract]        
Net sales 1,856 1,910 4,388 5,184
TransAct Services Group [Member] | International [Member]        
Disaggregation of revenue [Abstract]        
Net sales $ 115 $ 183 $ 365 $ 594