Condensed Consolidated Income Statement (unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues:
Royalties	$ 5,277,494	$ 3,484,975	$ 15,574,234	$ 8,850,067
Licensing revenues	1,012,345	512,344	1,037,034	546,909
Total Revenues	6,289,839	3,997,319	16,611,268	9,396,976
Costs and expenses:
Research and development	258,837	240,093	755,038	909,129
General and administrative	1,709,044	1,650,315	5,307,431	4,387,134
Total Cost and Expenses	1,967,881	1,890,408	6,062,469	5,296,263
Operating income	4,321,958	2,106,911	10,548,799	4,100,713
Other income:
Interest income	26,744	8,121	58,946	22,444
Other income	1,477	15,468	6,110	30,745
Total other income	28,221	23,589	65,056	53,189
Income before income tax expense	4,350,179	2,130,500	10,613,855	4,153,902
Income tax expense	(1,479,200)	(735,737)	(3,654,772)	(1,427,184)
Net income	$ 2,870,979	$ 1,394,763	$ 6,959,083	$ 2,726,718
Basic net income per share (in dollars per share)	$ 0.42	$ 0.21	$ 1.02	$ 0.42
Diluted net income per share (in dollars per share)	$ 0.39	$ 0.20	$ 0.96	$ 0.39
Shares used in computation of basic net income per share (in shares)	6,892,637	6,489,758	6,797,506	6,433,013
Shares used in computation of diluted net income per share (in shares)	7,316,287	7,074,154	7,259,338	7,039,225