CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $)	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Cash and cash equivalents	$ 107,067,070	$ 91,309,754
Accounts receivable	610,420	982,023
Inventory	17,075,545	20,515,349
Prepaid expense and other assets, current	978,488	750,808
Deferred tax assets	7,602,201	10,383,908
Total current assets	133,333,724	123,941,842
Property, plant and equipment, net	1,084,650	1,382,073
Deferred costs	29,176,756	22,583,202
Goodwill	898,334	898,334
Other assets	2,024,555	2,078,159
Deferred tax assets, net	48,269,810	42,940,624
Total assets	214,787,829	193,824,234
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	4,343,762	5,064,380
Accrued expenses and other current liabilities	4,660,747	4,842,393
Common stock warrants, current	157,320	313,425
Long-term debt, current maturities	1,973,990	1,968,826
Total current liabilities	11,135,819	12,189,024
Deferred revenue	187,783,380	162,222,189
Long-term debt, excluding current maturities	1,494,490	1,989,948
Other liabilities	437,035	447,605
Total liabilities	200,850,724	176,848,766
Equity
Common stock ($.0001 par value, 100,000,000 shares authorized, 53,335,296 and 53,108,844 issued and outstanding at March 31, 2014, and December 31, 2013, respectively	5,334	5,310
Additional paid-in capital	173,841,500	173,498,028
Accumulated deficit	(159,909,729)	(156,527,870)
Total stockholders' equity	13,937,105	16,975,468
Total liabilities and stockholders' equity	$ 214,787,829	$ 193,824,234