Consolidated Balance Sheets (USD $)	Dec. 31, 2012	Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 5,022,007	$ 8,271,787
Accounts receivable, net of allowance of $547,000 and $270,210, at December 31, 2012 and 2011, respectively	15,744,789	10,293,752
Notes receivable - current portion, including $0 and $559 of accrued interest, at December 31, 2012 and 2011, respectively	111,569	169,955
Prepaid expenses and other current assets	870,881	1,082,184
Restricted cash		275,000
Current asset from discontinued operations		149,796
Total current assets	21,749,246	20,242,474
Goodwill, net	70,646,036	70,646,036
Goodwill and intangible assets from discontinued operations, net		2,402,446
Intangible assets, net	6,746,273	8,567,772
Property and equipment, net	4,772,632	4,318,619
Property and equipment from discontinued operations, net		90,075
Other assets	520,480	385,683
Other assets from discontinued operations		151,591
Total assets	104,434,667	106,804,696
Current Liabilities:
Accounts payable	3,528,607	1,841,595
Accrued expenses and other liabilities	3,211,681	1,713,870
Current liabilities from discontinued operations	1,434	693,947
Deferred revenue	392,612	70,516
Accrued dividends	69,455	169,455
Unearned grant income		9,040
Current portion of long-term debt	2,551,941	2,405,191
Total current liabilities	9,755,730	6,903,614
Long term debt, net of discount	9,156,788	9,255,508
Total liabilities	18,912,518	16,159,122
Commitments and Contingencies (see Note 10)
Stockholders' Equity:
Common stock, $.001 par value; authorized - 100,000,000 shares; 37,046,405 and 36,145,084 shares issued and outstanding at December 31, 2012 and 2011, respectively	37,050	36,146
Additional paid-in capital	275,261,794	269,974,789
Accumulated deficit	(189,211,750)	(178,903,412)
Accumulated other comprehensive loss	(565,945)	(462,949)
Total stockholders’ equity	85,522,149	90,645,574
Total liabilities and stockholders’ equity	104,434,667	106,804,696
Series A Preferred Stock [Member]
Stockholders' Equity:
Convertible Preferred Stock	0
Series A-1 Preferred Stock [Member]
Stockholders' Equity:
Convertible Preferred Stock	$ 1,000	$ 1,000