Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2011	Sep. 30, 2010
Current assets:
Cash and cash equivalents	$ 91,297,019	$ 38,771,469
Trade receivables	562,916	0
Stock subscriptions receivable	0	580,910
Royalty receivables	0	29,471
Inventories	700,562	652,628
Prepaid expenses	3,026,503	432,705
Other current assets	184,325	23,396
Current portion of restricted investments in marketable securities	617,100	200,000
Total current assets	96,388,425	40,690,579
Restricted investments in marketable securities, net of current portion	1,634,625	401,550
Property and equipment, net	1,015,030	449,712
Non-current inventories	365,886	228,207
Other assets	1,013,864	371,150
TOTAL ASSETS	100,417,830	42,141,198
Current liabilities:
Accounts payable	1,412,964	2,106,110
Accrued expenses and other liabilities	2,607,241	1,070,061
Accrued compensation and payroll taxes	2,831,227	2,147,371
Deferred product revenues, net	1,583,890	0
Current portion of deferred royalty revenues	2,087,226	2,399,849
Total current liabilities	10,522,548	7,723,391
Accrued expenses and other liabilities, net of current portion	144,667	334,269
Deferred royalty revenues, net of current portion	4,727,213	6,076,982
Total liabilities	15,394,428	14,134,642
Commitments and contingencies
Stockholders' equity:
Preferred stock - $0.0001 par value, 10,000,000 shares authorized, no shares issued or outstanding as of June 30, 2011 and September 30, 2010	0	0
Common stock - $0.0001 par value, 200,000,000 shares authorized; 124,186,031 and 95,965,572 shares issued and outstanding as of June 30, 2011 and September 30, 2010	12,419	9,597
Common stock subscribed but unissued	0	580,910
Additional paid-in capital	432,338,686	332,100,685
Accumulated deficit	(347,327,703)	(304,684,636)
Total stockholders' equity	85,023,402	28,006,556
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 100,417,830	$ 42,141,198