CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 7,925,334	$ 6,013,382
Marketable securities	1,500,235	7,420,042
Accounts receivable, net of allowances of $239,077 and $191,285, respectively	4,641,500	6,635,262
Prepaid expenses and other current assets	1,396,389	1,742,668
Inventory	6,181	70,534
Deferred tax assets, net	526,391	205,816
Total current assets	15,996,030	22,087,704
Property and equipment, net of accumulated depreciation of $18,368,187 and $17,947,675, respectively	1,257,917	1,565,932
Deferred tax assets, net	127,015	110,060
Software development costs, net	736,453	1,116,816
Other assets	1,045,956	1,139,377
Goodwill	4,150,339	4,150,339
Other intangible assets, net	235,408	256,137
Total assets	23,549,118	30,426,365
Current liabilities:
Accounts payable	973,739	1,005,944
Accrued expenses	6,186,181	6,783,514
Deferred tax liabilities, net	89,474	89,343
Deferred revenue, net	15,969,741	16,553,519
Total current liabilities	23,219,135	24,432,320
Other long-term liabilities	991,781	735,089
Deferred tax liabilities, net	40,637	27,069
Deferred revenue, net	9,462,032	9,122,289
Total liabilities	33,713,585	34,316,767
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	8,153,204	7,818,554
Stockholders' deficit:
Common stock - $.001 par value, 100,000,000 shares authorized, 58,860,181 and 57,194,817 shares issued, respectively and 43,332,111 and 41,666,747 shares outstanding, respectively	58,860	57,195
Additional paid-in capital	169,728,951	167,953,871
Accumulated deficit	(128,815,385)	(120,983,891)
Common stock held in treasury, at cost (15,528,070 and 15,528,070 shares, respectively)	(57,032,917)	(57,032,917)
Accumulated other comprehensive loss, net	(2,257,180)	(1,703,214)
Total stockholders' deficit	(18,317,671)	(11,708,956)
Total liabilities and stockholders' deficit	$ 23,549,118	$ 30,426,365