Business Segment Data (Details) - Business Segment Data - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues:
Revenues	$ 3,077	$ 3,837
Operating (loss) income:
Operating (loss) income	(1,087)	(963)
Interest expense, net	(174)	(35)
Loss on foreign currency remeasurement	(27)	(134)
Gain on sale/leaseback transaction	33	22
Warrant expense		(7)
Loss before income taxes	(1,255)	(1,117)
Income tax expense
Net loss	(1,255)	(1,117)
Operating Segments [Member] | Digital Product Sales [Member]
Revenues:
Revenues	2,580	3,000
Operating (loss) income:
Operating (loss) income	(476)	(360)
Operating Segments [Member] | Digital Product Lease And Maintenance [Member]
Revenues:
Revenues	497	837
Operating (loss) income:
Operating (loss) income	71	269
Corporate, Non-Segment [Member] | Digital Product Lease And Maintenance [Member]
Operating (loss) income:
Operating (loss) income	$ (682)	$ (872)