Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of revenue [Abstract]
Total net sales	$ 5,285	$ 11,350	$ 15,532	$ 22,900
United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	4,601	8,715	12,016	17,722
International [Member]
Disaggregation of revenue [Abstract]
Total net sales	684	2,635	3,516	5,178
Food Service Technology [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,204	1,123	2,575	2,336
Food Service Technology [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,056	978	2,295	2,095
Food Service Technology [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	148	145	280	241
POS Automation and Banking [Member]
Disaggregation of revenue [Abstract]
Total net sales	481	1,644	2,039	2,921
POS Automation and Banking [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	481	1,639	2,035	2,898
POS Automation and Banking [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	5	4	23
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,360	5,631	6,291	11,114
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	970	3,492	3,528	6,916
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	390	2,139	2,763	4,198
Lottery [Member]
Disaggregation of revenue [Abstract]
Total net sales	817	134	817	831
Lottery [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	817	132	817	829
Lottery [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	2	0	2
Printrex [Member]
Disaggregation of revenue [Abstract]
Total net sales	8	285	125	627
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	6	230	67	527
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	2	55	58	100
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,415	2,533	3,685	5,071
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,271	2,244	3,274	4,457
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	$ 144	$ 289	$ 411	$ 614