Accounting pronouncements, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of revenue [Abstract]
Total net sales	$ 15,838	$ 15,524	$ 42,832	$ 43,117
United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			34,195
International [Member]
Disaggregation of revenue [Abstract]
Total net sales			8,637
Restaurant Solutions [Member]
Disaggregation of revenue [Abstract]
Total net sales			3,622
Restaurant Solutions [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			3,295
Restaurant Solutions [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			327
POS Automation and Banking [Member]
Disaggregation of revenue [Abstract]
Total net sales			5,901
POS Automation and Banking [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			5,765
POS Automation and Banking [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			136
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Total net sales			21,274
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			14,084
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			7,190
Lottery [Member]
Disaggregation of revenue [Abstract]
Total net sales			1,771
Lottery [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			1,724
Lottery [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			47
Printrex [Member]
Disaggregation of revenue [Abstract]
Total net sales			1,062
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			833
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			229
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Total net sales			9,202
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales			8,494
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales			$ 708