Investment in a Joint Venture (Details Textual) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2010	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Stock Issued During Period, Value, New Issues		$ 4,909,000
Payments To Fund Joint Venture Investments			500,000
Maximum Amount Committed Towards Contributions In Joint Venture			2,000,000
Cash and cash equivalents	4,953,000	4,953,000		1,638,000	751,000	572,000
Acquisition of product license			3,600,000
Finite-Lived Intangible Assets, Useful Life (in years)			12 years 6 months
Ownership Percentage In Joint Venture			50.00%
Asset Impairment Charges	3,600,000	3,600,000
PSI Parent [Member]
Schedule of Investments [Line Items]
Stock Issued During Period, Shares, New Issues			1,440,000
Stock Issued During Period, Value, New Issues			2,600,000
Payments To Fund Joint Venture Investments			1,000,000
Cash and cash equivalents	$ 374,000	$ 374,000