Business Segment Data (Details) - Business Segment Data (USD $)	1 Months Ended	3 Months Ended
	Nov. 30, 2011	Mar. 31, 2013	Mar. 31, 2012
Segment Reporting Information [Line Items]
Revenue		$ 4,096,000	$ 5,605,000
Operating Income (Loss)		(1,209,000)	(1,642,000)
Interest expense, net		(41,000)	(51,000)
Gain on debt extinguishment	8,800,000		4,000
Change in warrant liabilities		(68,000)	108,000
Loss from continuing operations before income taxes		(1,318,000)	(1,581,000)
Income tax expense		(8,000)	(7,000)
Loss from continuing operations		(1,326,000)	(1,588,000)
Digital Display [Member]
Segment Reporting Information [Line Items]
Revenue		2,451,000	3,837,000
Operating Income (Loss)		(1,008,000)	(1,141,000)
Digital Display Lease And Maintenance [Member]
Segment Reporting Information [Line Items]
Revenue		1,645,000	1,768,000
Operating Income (Loss)		262,000	217,000
Corporate General And Administrative Expenses [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)		$ (463,000)	$ (718,000)