Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of revenue [Abstract]
Total net sales	$ 7,300	$ 11,686	$ 22,832	$ 34,586
United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	6,287	8,871	18,303	26,593
International [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,013	2,815	4,529	7,993
Food Service Technology [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,349	1,951	4,924	4,287
Food Service Technology [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,081	1,730	4,376	3,825
Food Service Technology [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	268	221	548	462
POS Automation and Banking [Member]
Disaggregation of revenue [Abstract]
Total net sales	742	1,514	2,781	4,435
POS Automation and Banking [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	739	1,494	2,774	4,392
POS Automation and Banking [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	3	20	7	43
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,009	5,074	8,300	16,188
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,552	2,849	5,080	9,765
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	457	2,225	3,220	6,423
Lottery [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	95	817	926
Lottery [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	95	817	924
Lottery [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	0	0	2
Printrex [Member]
Disaggregation of revenue [Abstract]
Total net sales	107	296	232	923
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	5	213	72	740
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	102	83	160	183
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,093	2,756	5,778	7,827
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,910	2,490	5,184	6,947
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	$ 183	$ 266	$ 594	$ 880