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Condensed Consolidated Balance Sheets (USD $)
Jun. 30, 2012
Sep. 30, 2011
Current assets:    
Cash and cash equivalents $ 14,360,715 $ 13,870,762
Restricted cash 606,250 606,250
Accounts receivable 2,103,742 5,098,148
Inventories, net 3,117,268 2,735,520
Prepaid expenses and other 736,431 663,601
Assets of discontinued operations   6,250
Total current assets 20,924,406 22,980,531
Restricted cash 39,406 0
Property and equipment, net 185,044 75,468
Intangible assets, net 187,747 225,969
Prepaid expense, non-current assets 1,109,485 1,218,750
Total assets 22,446,088 24,500,718
Current liabilities:    
Accounts payable 593,006 1,040,202
Accrued liabilities 557,160 2,899,211
Liabilities of discontinued operations   9,263
Total current liabilities 1,150,166 3,948,676
Other liabilities - noncurrent 321,411 276,744
Total liabilities 1,471,577 4,225,420
Commitments and contingencies (Note 11)      
Stockholders' equity:    
Preferred stock, $0.00001 par value; 5,000,000 shares authorized; none issued and outstanding      
Common stock, $0.00001 par value; 50,000,000 shares authorized; 32,374,499 shares issued and outstanding each period 324 324
Additional paid-in capital 86,150,339 85,673,560
Accumulated deficit (65,176,152) (65,398,586)
Total stockholders' equity 20,974,511 20,275,298
Total liabilities and stockholders' equity $ 22,446,088 $ 24,500,718