Business Segment Data (Details) - Business Segment Data - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Revenues:
Revenues	$ 10,326	$ 5,855	$ 17,381	$ 15,466
Operating income (loss):
Operating Income (Loss)	147	(257)	(2,025)	(1,189)
Interest expense, net	(202)	(131)	(514)	(206)
(Loss) gain on foreign currency remeasurement	(101)	47	(192)	(95)
Gain on extinguishment of debt		462		462
Gain on sale/leaseback transaction	33	33	99	88
Warrant expense		(7)		(21)
(Loss) income before income taxes	(123)	147	(2,632)	(961)
Income tax (expense) benefit		(7)		66
Net (loss) income	(123)	140	(2,632)	(895)
Assets:
Assets	15,231		15,231		$ 13,414
Operating Segments [Member]
Assets:
Assets	14,728		14,728		12,808
Operating Segments [Member] | Digital Product Sales [Member]
Revenues:
Revenues	9,676	5,135	15,616	13,133
Operating income (loss):
Operating Income (Loss)	697	351	(291)	602
Assets:
Assets	10,748		10,748		8,753
Operating Segments [Member] | Digital Product Lease And Maintenance [Member]
Revenues:
Revenues	650	720	1,765	2,333
Operating income (loss):
Operating Income (Loss)	227	160	485	651
Assets:
Assets	3,980		3,980		4,055
Corporate, Non-Segment [Member]
Operating income (loss):
Operating Income (Loss)	(777)	$ (768)	(2,219)	$ (2,442)
Assets:
Assets	$ 503		$ 503		$ 606