SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $)	3 Months Ended
	Mar. 31, 2013 Quarter Customer	Mar. 31, 2012 Payment	Dec. 31, 2012
Concentration of Credit Risk and Major Customers [Abstract]
Accounts receivable	$ 2,910,146		$ 5,082,360
Number of customers	2
Royalty revenue	3,432,900	1,899,969
Royalty / Mark-up on Cost of Goods Sold / Earn-Out Revenue [Abstract]
Number of quarters after which revenue is recognized (in quarters)	1
Number of days after calendar year, after which payments and report are received	90 days
Number of years for which bad debt expense not recorded	3 years
Allowance for doubtful accounts	30,000	30,000
Reimbursable Third Party Development Costs [Abstract]
Accrued patent costs	10,000
Royalty Buy-Down [Abstract]
Initial payment for royalty buy down	0	1,500,000
Number of additional cash payments for royalty buy down		5
Deferred royalty buy-down	2,750,000		2,750,000
Deferred costs, amortization period	5 years
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	26,400	39,806
Total number of shares
Outstanding shares as of December 31, 2012 (in shares)	1,182,000
Granted (in shares)	0
Forfeited (in shares)	0
Exercised (in shares)	0
Expired (in shares)	0
Outstanding shares as of March 31, 2013 (in shares)	1,182,000
Exercisable shares as of March 31, 2013 (in shares)	1,152,000
Weighted-Average Exercise Price
Outstanding as of December 31, 2012 (in dollars per share)	$ 8.90
Granted (in dollars per share)	$ 0
Forfeited (in dollars per share)	$ 0
Exercised (in dollars per share)	$ 0
Expired (in dollars per share)	$ 0
Outstanding as of March 31, 2013 (in dollars per share)	$ 8.90
Exercisable as of March 31, 2013 (in dollars per share)	$ 8.47
Proceeds from stock option exercises	0	78,000
Aggregate intrinsic value of options outstanding and exercisable	9,900,000
Closing price of Company stock (in dollars per share)	$ 17.05
Unrecognized compensation cost related to non-vested stock options outstanding	26,400
Weighted-average period over which unrecognized compensation cost to be recognized	3 months
Minimum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	5 years
Maximum [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment	10 years
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	13,200	22,138
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	13,200	17,668
Auxilium [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Accounts receivable	1,900,000
Royalty revenue	2,900,000
Deferred revenue	300,000
Auxilium [Member] | Accounts Receivable [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Concentration risk percentage (in hundredths)	66.00%
Auxilium [Member] | Licensing, Consulting And Royalty Revenue [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Concentration risk percentage (in hundredths)	74.00%
DFB Biotech Inc. [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Accounts receivable	1,000,000
Royalty revenue	$ 1,000,000
DFB Biotech Inc. [Member] | Accounts Receivable [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Concentration risk percentage (in hundredths)	34.00%
DFB Biotech Inc. [Member] | Licensing, Consulting And Royalty Revenue [Member]
Concentration of Credit Risk and Major Customers [Abstract]
Concentration risk percentage (in hundredths)	26.00%