Consolidated Statements of Operations (unaudited) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues:
Net sales	$ 10,449	$ 27,500	$ 14,127	$ 29,743
Royalties	2,624,774	3,197,603	5,365,092	6,630,503
Licensing revenues	17,282	44,880	34,565	589,761
Total Revenues	2,652,505	3,269,983	5,413,784	7,250,007
Costs and expenses:
Research and development	286,332	470,044	669,036	764,918
General and administrative	1,490,514	1,236,254	2,736,819	2,854,736
Total Cost and Expenses	1,776,846	1,706,298	3,405,855	3,619,654
Operating income	875,659	1,563,685	2,007,929	3,630,353
Other income (expense):
Interest income	7,352	6,510	14,323	12,376
Other income	0	0	1,150	0
Total other income (expense)	7,352	6,510	15,473	12,376
Income before expense for income tax	883,011	1,570,195	2,023,402	3,642,729
Income tax benefit (expense)	(305,045)	(542,009)	(691,447)	(1,261,459)
Net income	$ 577,966	$ 1,028,186	$ 1,331,955	$ 2,381,270
Basic net income per share (in dollars per share)	$ 0.09	$ 0.16	$ 0.21	$ 0.37
Diluted net income per share (in dollars per share)	$ 0.08	$ 0.15	$ 0.19	$ 0.34
Shares used in computation of basic net income per share (in shares)	6,429,203	6,345,277	6,404,170	6,351,083
Shares used in computation of diluted net income per share (in shares)	7,009,625	6,968,057	7,018,533	6,966,045