Long-Term Debt And Credit Facilities (Narrative) (Details)			1 Months Ended		3 Months Ended	9 Months Ended
	Jan. 31, 2013 USD ($)	Aug. 08, 2012 USD ($)	Sep. 30, 2016 USD ($)	Nov. 30, 2011 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2016 USD ($)	May 10, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Cash and cash equivalents			$ 9,244,783		$ 9,244,783	$ 9,244,783		$ 5,593,582	$ 3,618,469	$ 7,270,301
Line of credit facility, repayments						7,650,000
Deferred financing costs								$ 349,018
Gain on debt extinguishment					5,632,171	5,632,171
Healthcare Royalty Partners Debt [Member]
Debt Instrument [Line Items]
Amount of debt extinguished			18,100,000
Deferred financing costs			300,000		300,000	300,000
Accrued interest			500,000		500,000	$ 500,000
Payments of debt			13,000,000
Term Loan [Member] | Healthcare Royalty Partners Debt [Member]
Debt Instrument [Line Items]
Amount borrowed	$ 2,500,000	$ 2,500,000		$ 15,000,000
Additional amount which may be borrowed				$ 5,000,000
Percentage of royalties entitled to receive				100.00%
Maturity date						Dec. 31, 2018
Annual interest rate				16.00%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			10,000,000		10,000,000	$ 10,000,000
Line of credit facility, maturity date						Mar. 31, 2018
Minimum tangible net worth requirement, period one							$ (24,000,000)
Minimum tangible net worth requirement, period two							$ (24,500,000)
Line of credit facility, amount outstanding			0		0	$ 0
Line of credit facility, current borrowing capacity			4,000,000		4,000,000	4,000,000
Total liquidity			$ 13,200,000		$ 13,200,000	$ 13,200,000
Minimum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Liquidity ratio							1.50