Consolidated Balance Sheets (unaudited) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 3,823,860	$ 3,196,831
Short-term investments	5,190,000	5,000,000
Accounts receivable, net	3,205,394	3,236,917
Income tax receivable	71,132	244,720
Deferred tax assets	637,399	1,309,801
Prepaid expenses and other current assets	161,167	98,234
Total current assets	13,088,952	13,086,503
Deferred royalty buy-down	2,750,000	1,250,000
Deferred tax assets - long term	1,791,146	1,738,154
Patent costs, net	210,684	190,416
Total assets	17,840,782	16,265,073
Current liabilities:
Accounts payable and accrued expenses	680,406	601,002
Deferred revenue	161,122	437,099
Accrued liabilities of discontinued operations	78,138	78,138
Total current liabilities	919,666	1,116,239
Long-term deferred revenue	224,673	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 September 30, 2012 and December 31, 2011, respectively	6,625	6,531
Additional paid-in capital	20,667,613	20,049,196
Accumulated deficit	(1,411,785)	(3,291,904)
Treasury stock, 233,551 and 194,604 shares at cost at September 30, 2012 and December 31, 2011, respectively	(2,566,010)	(1,891,509)
Total stockholders' equity	16,696,443	14,872,314
Total liabilities and stockholders' equity	$ 17,840,782	$ 16,265,073