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Condensed Consolidated Statements Of Operations (USD $)
 3 Months Ended 9 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Revenues:        
Product sales $ 2,261,047 $ 2,902,937 $ 19,696,907 $ 11,359,704
Contract and other 120,836 27,049 393,439 122,834
Total revenues 2,381,883 2,929,986 20,090,346 11,482,538
Cost of revenues 1,477,023 1,457,210 7,325,296 5,157,657
Gross profit 904,860 1,472,776 12,765,050 6,324,881
Operating expenses:        
Selling, general and administrative 1,118,729 991,457 6,562,834 3,417,130
Research and development 514,178 460,899 1,559,088 1,448,929
Total operating expenses 1,632,907 1,452,356 8,121,922 4,866,059
(Loss) income from operations (728,047) 20,420 4,643,128 1,458,822
Other income (expense):        
Interest income (expense) 4,495 130 12,685 (1,342)
Unrealized gain on derivative revaluation   74,293   747,819
Total other income 4,495 74,423 12,685 746,477
(Loss) income from continuing operations before income taxes (723,552) 94,843 4,655,813 2,205,299
Income tax benefit (provision) 38,112 (11,487) (73,983) (107,216)
(Loss) income from continuing operations (685,440) 83,356 4,581,830 2,098,083
Income (loss) from discontinued operations 1,606 (15,629) 83,231 (47,305)
Net (loss) income $ (683,834) $ 67,727 $ 4,665,061 $ 2,050,778
Net income (loss) per common share - basic and diluted:        
Continuing operations $ (0.02) $ 0.00 $ 0.15 $ 0.07
Discontinued operations $ 0.00 $ 0.00 $ 0.00 $ 0.00
Total net income (loss) per common share - basic and diluted $ (0.02) $ 0.00 $ 0.15 $ 0.07
Weighted average common shares outstanding        
Basic 32,335,846 30,611,456 30,616,660 30,581,706
Diluted 32,335,846 31,104,864 31,560,456 31,136,608