CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
ASSETS
Cash and cash equivalents	$ 32,017,490				$ 49,256,930				$ 6,332,053	$ 14,496,313
Accounts receivable	970,288				2,637,103
Inventory	17,641,922				0
Prepaid Expense and Other Assets, Current	801,149				356,898
Deferred tax assets	33,515,327				727,772
Total current assets	84,946,176	42,540,233	46,578,955	46,636,330	52,978,703	14,538,719	17,240,832	20,423,847
Property, plant and equipment, net	987,869				818,992
Accounts receivable	3,771,219				0
Deferred costs	2,841,534				250,072
Goodwill	898,334				898,334
Other assets	2,181,720				285,345
Deferred tax assets, net	10,209,278				35,149,031
Total assets	105,836,130	92,051,992	92,640,990	89,027,621	90,380,477	50,784,094	51,968,582	22,627,346
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	10,189,917				2,278,316
Accrued expenses and other current liabilities	4,283,849				4,644,461
Common stock warrants, current	333,793				125,841
Long-term debt, current maturities	954,738				0
Total current liabilities	15,762,297				7,048,618
Deferred revenue	57,052,020				41,001,110
Common stock warrants, noncurrent	657,246	1,788,682	1,789,716	2,380,660	1,412,304	2,402,720	13,791,303	21,278,533
Long-term debt, excluding current maturities	3,955,262				0
Other liabilities	166,303	59,562,651	57,661,062	50,017,901	147,586	3,779,449	3,268,952	3,474,238
Total liabilities	77,593,128	61,586,379	59,551,415	52,555,575	49,609,618	6,415,668	18,747,015	24,752,771
Stockholders' equity
Common stock ($.0001 par value, 100,000,000 shares authorized, 51,642,520 and 51,637,352 issued and outstanding at December 31, 2012, and December 31, 2011, respectively	5,164	5,164	5,164	5,164	5,164	5,142	5,131	5,038
Additional paid-in capital	167,588,374				166,056,692
Accumulated deficit	(139,350,536)	(136,732,180)	(133,673,444)	(129,906,606)	(125,290,997)	(120,230,033)	(128,556,342)	(155,902,139)
Total stockholders' equity	28,243,002	30,465,613	33,089,575	36,472,046	40,770,859	44,368,426	33,221,567	(2,125,425)	(12,912,917)	(3,489,473)
Total liabilities and stockholders' equity	$ 105,836,130	$ 92,051,992	$ 92,640,990	$ 89,027,621	$ 90,380,477	$ 50,784,094	$ 51,968,582	$ 22,627,346