Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of revenue [Abstract]
Net sales	$ 9,702	$ 8,301
United States [Member]
Disaggregation of revenue [Abstract]
Net sales	7,102	6,995
International [Member]
Disaggregation of revenue [Abstract]
Net sales	2,600	1,306
Food Service Technology [Member]
Disaggregation of revenue [Abstract]
Net sales	2,130	2,747
Food Service Technology [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Net sales	1,946	2,564
Food Service Technology [Member] | International [Member]
Disaggregation of revenue [Abstract]
Net sales	184	183
POS Automation [Member]
Disaggregation of revenue [Abstract]
Net sales	1,300	1,164
POS Automation [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Net sales	1,300	1,160
POS Automation [Member] | International [Member]
Disaggregation of revenue [Abstract]
Net sales	0	4
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Net sales	4,762	2,865
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Net sales	2,788	1,964
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Net sales	1,974	901
Printrex [Member]
Disaggregation of revenue [Abstract]
Net sales	0	159
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Net sales	0	27
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Net sales	0	132
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Net sales	1,510	1,366
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Net sales	1,068	1,280
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Net sales	$ 442	$ 86