Business Segment Data (Details) - Business Segment Data - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Revenues:
Revenues	$ 3,978	$ 5,774	$ 7,055	$ 9,611
Operating (loss) income:
Operating Income (Loss)	(1,085)	31	(2,172)	(932)
Interest expense, net	(138)	(40)	(312)	(75)
Loss on foreign currency remeasurement	(64)	(8)	(91)	(142)
Gain on sale/leaseback transaction	33	33	66	55
Warrant expense		(7)		(14)
(Loss) income before income taxes	(1,254)	9	(2,509)	(1,108)
Income tax benefit		73		73
Net (loss) income	(1,254)	82	(2,509)	(1,035)
Assets:
Assets	13,358		13,358		$ 13,414
Operating Segments [Member]
Assets:
Assets	12,566		12,566		12,808
Operating Segments [Member] | Digital Product Sales [Member]
Revenues:
Revenues	3,360	4,998	5,940	7,998
Operating (loss) income:
Operating Income (Loss)	(512)	608	(988)	248
Assets:
Assets	8,344		8,344		8,753
Operating Segments [Member] | Digital Product Lease And Maintenance [Member]
Revenues:
Revenues	618	776	1,115	1,613
Operating (loss) income:
Operating Income (Loss)	187	222	258	491
Assets:
Assets	4,222		4,222		4,055
Corporate, Non-Segment [Member]
Operating (loss) income:
Operating Income (Loss)	(760)	$ (799)	(1,442)	$ (1,671)
Assets:
Assets	$ 792		$ 792		$ 606