Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Mar. 31, 2020	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Sep. 30, 2018
Disaggregation of revenue [Abstract]
Total net sales	$ 10,247	$ 10,247	$ 11,550	$ 11,550	$ 11,550
United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	7,415	7,415		9,007	9,007
International [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,832	2,832		2,543	2,543
Restaurant Solutions [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,371	1,371		1,213	1,213
Restaurant Solutions [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,239	1,239		1,117	1,117
Restaurant Solutions [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	132	132		96	96
POS Automation and Banking [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,558	1,558		1,277	1,277
POS Automation and Banking [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	1,554	1,554		1,259	1,259
POS Automation and Banking [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	4	4		18	18
Casino and Gaming [Member]
Disaggregation of revenue [Abstract]
Total net sales	4,931	4,931		5,483	5,483
Casino and Gaming [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,558	2,558		3,424	3,424
Casino and Gaming [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,373	2,373		2,059	2,059
Lottery [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	0		697	697
Lottery [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	0		697	697
Lottery [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	0	0		0	0
Printrex [Member]
Disaggregation of revenue [Abstract]
Total net sales	117	117		342	342
Printrex [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	61	61		297	297
Printrex [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	56	56		45	45
TransAct Services Group [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,270	2,270		2,538	2,538
TransAct Services Group [Member] | United States [Member]
Disaggregation of revenue [Abstract]
Total net sales	2,003	2,003		2,213	2,213
TransAct Services Group [Member] | International [Member]
Disaggregation of revenue [Abstract]
Total net sales	$ 267	$ 267		$ 325	$ 325