Business Segment Data (Details) - Business Segment Data - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues:
Revenues	$ 5,855,000	$ 8,162,000	$ 15,466,000	$ 18,560,000
Operating income (loss):
Operating Income (Loss)	(257,000)	116,000	(1,189,000)	(1,171,000)
Interest expense, net	(131,000)	(87,000)	(206,000)	(210,000)
Gain (loss) on foreign currency remeasurement	47,000	162,000	(95,000)	352,000
Gain on extinguishment of debt	462,000		462,000
Gain on sale/leaseback transaction	33,000		88,000
Warrant expense	(7,000)	(18,000)	(21,000)	(53,000)
Income (loss) before income taxes	147,000	173,000	(961,000)	(1,082,000)
Income tax (expense) benefit	(7,000)		66,000	(8,000)
Net income (loss)	140,000	173,000	(895,000)	(1,090,000)
Corporate, Non-Segment [Member]
Operating income (loss):
Operating Income (Loss)	(768,000)	(752,000)	(2,442,000)	(2,361,000)
Digital Product Sales [Member] | Operating Segments [Member]
Revenues:
Revenues	5,135,000	7,289,000	13,133,000	15,809,000
Operating income (loss):
Operating Income (Loss)	351,000	743,000	602,000	554,000
Digital Product Lease And Maintenance [Member] | Operating Segments [Member]
Revenues:
Revenues	720,000	873,000	2,333,000	2,751,000
Operating income (loss):
Operating Income (Loss)	$ 160,000	$ 125,000	$ 651,000	$ 636,000