Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of revenue [Abstract]
Total net sales	$ 9,325	$ 5,285	$ 17,626	$ 15,532
United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	7,954	4,601	14,949	12,016
International [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,371	684	2,677	3,516
Food Service Technology [Member]
Disaggregation of revenue [Abstract]
Total net sales	3,074	1,204	5,821	2,575
Food Service Technology [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,987	1,056	5,551	2,295
Food Service Technology [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	87	148	270	280
POS Automation and Banking [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,256	481	2,420	2,039
POS Automation and Banking [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,252	481	2,412	2,035
POS Automation and Banking [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	4	0	8	4
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Total net sales	3,467	1,360	6,332	6,291
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,438	970	4,402	3,528
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,029	390	1,930	2,763
Lottery [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	817	0	817
Lottery [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	817	0	817
Lottery [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	0	0	0
Printrex [Member]
Disaggregation of revenue [Abstract]
Total net sales	112	8	271	125
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	25	6	52	67
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	87	2	219	58
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,416	1,415	2,782	3,685
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,252	1,271	2,532	3,274
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	$ 164	$ 144	$ 250	$ 411