Long-Term Debt And Credit Facilities (Narrative) (Details)				1 Months Ended	12 Months Ended
	Jan. 31, 2013 USD ($)	Aug. 08, 2012 USD ($)	Nov. 30, 2011 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Total liquidity					$ 12,300,000
Cash and cash equivalents					8,501,392	$ 5,593,582	$ 7,270,301
Line of credit facility, repayments					7,650,000
Deferred financing costs						349,018
Accrued interest						$ 494,703
Gain on debt extinguishment					5,632,171
Healthcare Royalty Partners Debt [Member]
Debt Instrument [Line Items]
Amount of debt extinguished				$ 18,100,000
Deferred financing costs				300,000
Accrued interest				500,000
Payments of debt				$ 13,000,000	$ 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
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
Line of credit facility, current borrowing capacity					$ 3,800,000
Minimum [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Liquidity ratio					1.50