Consolidated Balance Sheets (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 5,097,924	$ 5,866,123
Short term investments	5,077,970	5,076,930
Royalty receivables, net of reserves of $173,921 in 2014 and 2013	860,430	867,162
Prepaid expenses and other current assets	80,181	135,080
Total current assets	11,116,505	11,945,295
Fixed assets, net	101,535	64,365
Deposits and other assets	33,567	22,605
Total assets	11,251,607	12,032,265
Current liabilities:
Accounts payable	138,385	56,603
Accrued expenses and other	201,476	80,725
Deferred revenue	56,250	25,000
Total current liabilities	396,111	162,328
Shareholders' equity:
Common stock, par value $0.0001 per share; authorized 100,000,000 shares, issued and outstanding 23,124,465 and 23,109,665 shares for 2014 and 2013	2,312	2,311
Additional paid-in capital	105,319,221	105,184,600
Accumulated deficit	(94,466,037)	(93,316,974)
Total shareholders' equity	10,855,496	11,869,937
Total liabilities and shareholders' equity	$ 11,251,607	$ 12,032,265