CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 16,484,132	$ 16,257,694
Marketable securities	16,622,687	20,894,328
Accounts receivable, net of allowances of $1,073,041 and $1,723,679, respectively	10,428,659	19,314,789
Prepaid expenses and other current assets	1,860,686	1,912,831
Inventory	1,100,644	1,769,007
Deferred tax assets, net	169,089	177,798
Income tax receivable	0	0
Total current assets	46,665,897	60,326,447
Property and equipment, net of accumulated depreciation of $19,307,534 and $17,797,835, respectively	4,472,535	4,364,180
Long-term marketable securities	464,999	611,082
Deferred tax assets, net	209,843	217,771
Software development costs, net	1,325,948	1,001,530
Other assets, net	2,243,466	2,183,973
Goodwill	4,150,339	4,150,339
Other intangible assets, net	177,932	191,572
Total assets	59,710,959	73,046,894
Liabilities and Stockholders' Equity
Accounts payable	2,656,205	2,883,844
Accrued expenses	9,569,410	17,609,766
Deferred revenue, net	19,358,548	19,450,966
Total current liabilities	31,584,163	39,944,576
Other long-term liabilities	4,396,320	2,587,327
Deferred revenue, net	6,919,380	7,698,053
Total liabilities	42,899,863	50,229,956
Stockholders' equity:
Preferred stock - $.001 par value, 2,000,000 shares authorized	0	0
Common stock - $.001 par value, 100,000,000 shares authorized, 55,546,497 and 54,931,397 shares issued, respectively and 47,541,262 and 46,926,162 shares outstanding, respectively	55,546	54,931
Additional paid-in capital	160,483,485	157,321,564
Accumulated deficit	(94,995,792)	(85,925,798)
Common stock held in treasury, at cost (8,005,235 and 8,005,235 shares, respectively	(46,916,339)	(46,916,339)
Accumulated other comprehensive loss, net	(1,815,804)	(1,717,420)
Total stockholders' equity	16,811,096	22,816,938
Total liabilities and stockholders' equity	$ 59,710,959	$ 73,046,894