Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 3,383,737	$ 3,196,831
Short term investments	5,120,000	5,000,000
Accounts receivable, net	5,082,360	3,236,917
Income tax receivable	51,070	244,720
Deferred tax asset	88,910	1,309,801
Prepaid expenses and other current assets	149,724	98,234
Total current assets	13,875,801	13,086,503
Deferred royalty buy-down	2,750,000	1,250,000
Deferred tax assets - long term	1,484,141	1,738,154
Patent costs, net	280,322	190,416
Total assets	18,390,264	16,265,073
Current liabilities:
Accounts payable and accrued expenses	512,866	601,002
Deferred revenue	133,524	437,099
Accrued liabilities of discontinued operations	78,138	78,138
Total current liabilities	724,528	1,116,239
Deferred revenue - license fees	207,390	276,520
Stockholders' equity:
Series A Preferred stock, $.50 par value, 700,000 shares authorized; none outstanding	0	0
Common stock, $.001 par value; 10,000,000 shares authorized; 6,625,168 and 6,530,743 shares issued at December 31, 2012 and 2011, respectively	6,625	6,531
Additional paid-in capital	20,688,706	20,049,196
Accumulated deficit	(310,829)	(3,291,904)
Treasury stock, 260,632 and 194,604 shares at cost as of December 31, 2012 and 2011	(2,926,156)	(1,891,509)
Total stockholders' equity	17,458,346	14,872,314
Total liabilities and stockholders' equity	$ 18,390,264	$ 16,265,073