CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 17,493,097	$ 19,288,340
Restricted cash	750,000	750,000
Marketable securities	9,645,934	8,073,108
Accounts receivable, net of allowances of $302,848 and $276,302, respectively	9,715,785	11,150,323
Prepaid expenses and other current assets	2,421,076	1,636,891
Inventory	652,346	919,390
Deferred tax assets, net	358,092	358,092
Total current assets	41,036,330	42,176,144
Property and equipment, net of accumulated depreciation of $16,489,956 and $16,022,230, respectively	3,093,740	3,317,344
Deferred tax assets, net	56,059	49,651
Software development costs, net	1,693,772	1,796,075
Other assets	1,469,865	1,549,255
Goodwill	4,150,339	4,150,339
Other intangible assets, net	160,579	179,596
Total assets	51,660,684	53,218,404
Current liabilities:
Accounts payable	1,282,032	1,024,180
Accrued expenses	7,414,251	8,658,863
Deferred tax liabilities, net	18,005	18,005
Deferred revenue, net	19,370,270	18,148,268
Total current liabilities	28,084,558	27,849,316
Other long-term liabilities	587,427	617,300
Deferred tax liabilities, net	199,791	193,705
Deferred revenue, net	12,536,651	11,602,177
Total liabilities	41,408,427	40,262,498
Commitments and contingencies
Series A redeemable convertible preferred stock, $.001 par value, 2,000,000 shares authorized, 900,000 shares issued and outstanding, redemption value of $9,000,000	6,852,954	6,737,578
Stockholders' equity:
Common stock - $.001 par value, 100,000,000 shares authorized, 56,036,972 and 56,036,972 shares issued, respectively and 48,031,737 and 48,031,737 shares outstanding, respectively	56,037	56,037
Additional paid-in capital	166,794,108	166,683,726
Accumulated deficit	(114,644,507)	(111,842,709)
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	(1,889,996)	(1,762,387)
Total stockholders' equity	3,399,303	6,218,328
Total liabilities and stockholders' equity	$ 51,660,684	$ 53,218,404