Consolidated Balance Sheets - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 3,391,528	$ 6,013,382
Marketable securities	0	7,420,042
Accounts receivable, net of allowances of $260,676 and $191,285, respectively	5,003,972	6,635,262
Prepaid expenses and other current assets	1,245,085	1,742,668
Inventory	6,181	70,534
Deferred tax assets, net	0	205,816
Total current assets	9,646,766	22,087,704
Property and equipment, net of accumulated depreciation of $18,580,547 and $17,947,675, respectively	1,174,942	1,565,932
Deferred tax assets, net	577,735	110,060
Software development costs, net	547,558	1,116,816
Other assets	973,949	1,139,377
Goodwill	4,150,339	4,150,339
Other intangible assets, net	209,456	256,137
Total assets	17,280,745	30,426,365
Current liabilities:
Accounts payable	419,877	1,005,944
Accrued expenses	4,471,010	6,783,514
Deferred tax liabilities, net	0	89,343
Deferred revenue, net	15,236,123	16,553,519
Total current liabilities	20,127,010	24,432,320
Liabilities, Noncurrent [Abstract]
Other long-term liabilities	1,170,844	735,089
Deferred tax liabilities, net	254,776	27,069
Deferred revenue, net	8,430,692	9,122,289
Total liabilities	29,983,322	34,316,767
Commitments and contingencies (Note 12)
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	9,000,000	7,818,554
Stockholders' equity:
Common stock - $.001 par value, 100,000,000 shares authorized, 59,482,989 and 57,194,817 shares issued, respectively and 43,954,919 and 41,666,747 shares outstanding, respectively	59,483	57,195
Additional paid-in capital	169,091,255	167,953,871
Accumulated deficit	(131,982,685)	(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	(1,837,713)	(1,703,214)
Total stockholders' deficit	(21,702,577)	(11,708,956)
Total liabilities and stockholders' deficit	$ 17,280,745	$ 30,426,365