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Consolidated Balance Sheets (USD $)
Mar. 31, 2012
Jun. 30, 2011
Current assets:    
Cash and cash equivalents $ 6,194,035 $ 12,991,511
Accounts receivable, less allowance for uncollectible accounts of $28,000 and $113,000, respectively 2,131,845 1,634,719
Finance receivables 249,912 285,786
Inventory 3,233,320 2,670,332
Prepaid expenses and other current assets 1,275,630 846,033
Total current assets 13,084,742 18,428,381
Finance receivables, less current portion 309,690 195,601
Property and equipment, net 9,869,930 7,395,775
Intangibles, net 1,418,553 2,194,353
Goodwill 7,663,208 7,663,208
Other assets 83,236 126,687
Total assets 32,429,359 36,004,005
Current liabilities:    
Accounts payable 4,607,580 5,638,361
Accrued expenses 1,880,772 1,088,090
Current obligations under long-term debt 267,869 155,428
Total current liabilities 6,756,221 6,881,879
Long-term liabilities:    
Long-term debt, less current portion 300,166 97,633
Accrued expenses, less current portion 428,495 166,709
Warrant liabilities, non-current 748,811 2,732,253
Total long-term liabilities 1,477,472 2,996,595
Total liabilities 8,233,693 9,878,474
Commitments and contingencies      
Shareholders' equity:    
Preferred stock, no par value: Authorized shares- 1,800,000 Series A convertible preferred-Issued and outstanding shares- 442,968 (liquidation preference of $15,361,552 and $14,697,100, respectively) 3,138,056 3,138,056
Common stock, no par value: Authorized shares- 640,000,000 Issued and outstanding shares- 32,470,934 and 32,281,140, respectively 220,281,364 219,772,598
Accumulated deficit (199,223,754) (196,785,123)
Total shareholders' equity 24,195,666 26,125,531
Total liabilities and shareholders' equity $ 32,429,359 $ 36,004,005