Liquidity (Details) (USD $)	3 Months Ended				0 Months Ended	3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013 Portamedic Service Line [Member] holdback_component	Mar. 31, 2014 Portamedic Service Line [Member]	Apr. 16, 2014 Strategic Alliance Agreement Assets [Member] Subsequent Event [Member]	May 13, 2014 Purchase and Sale Agreement Property [Member] Subsequent Event [Member]	Apr. 16, 2014 Purchase and Sale Agreement Property [Member] Subsequent Event [Member]	Mar. 31, 2014 Selling, General and Administrative Expenses [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 2,667,000	$ 3,837,000	$ 3,970,000	$ 8,319,000
Working capital	6,700,000
Loss from continuing operations	(2,565,000)	(2,027,000)
Net cash used in operating activities of continuing operations	1,735,000	3,156,000
Relocation costs										1,100,000
Holdback amount					2,000,000
Number of holdback components					2
Holdback amount, component one					1,000,000
Holdback amount, component two					1,000,000
Proceeds from the sale of Portamedic	743,000	0			8,100,000	700,000
Maximum borrowing capacity under Loan and Security Agreement	10,000,000
Loan maximum defined, based on eligible receivables	85.00%
Loan maximum defined, based on eligible receivables, reserve	500,000
Additional borrowing availability under Loan and Security Agreement	3,100,000
Borrowings outstanding under Loan and Security Agreement	0
Consideration amount					$ 8,400,000		$ 3,700,000	$ 3,050,000	$ 3,050,000