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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
Net sales:        
Product $ 5,887,419 $ 7,295,526 $ 19,059,571 $ 16,117,839
Engineering - modification and development 84,075 518,290 187,804 1,676,173
Total net sales 5,971,494 7,813,816 19,247,375 17,794,012
Cost of sales        
Product 2,779,900 2,890,660 8,550,587 8,072,055
Engineering - modification and development 32,060 120,150 70,442 718,024
Total cost of sales 2,811,960 3,010,810 8,621,029 8,790,079
Gross profit 3,159,534 4,803,006 10,626,346 9,003,933
Operating expenses:        
Research and development 1,408,794 1,274,872 4,319,228 3,844,282
Selling, general and administrative 1,855,675 1,938,411 5,794,167 5,965,876
Total operating expenses 3,264,469 3,213,283 10,113,395 9,810,158
Operating income (loss) (104,935) 1,589,723 512,951 (806,225)
Interest income 26,885 69,164 119,740 119,774
Interest (expense) (350) (562) (1,212) (1,840)
Other income 7   150,010 50,000
Income (loss) before income taxes (78,393) 1,658,325 781,489 (638,291)
Income tax expense (benefit) 588 270,293 76,538 (135,385)
Net income (loss) $ (78,981) $ 1,388,032 $ 704,951 $ (502,906)
Net income (loss) per common share:        
Basic (in dollars per share) $ 0.00 $ 0.08 $ 0.04 $ (0.03)
Diluted (in dollars per share) $ 0.00 $ 0.08 $ 0.04 $ (0.03)
Weighted Average Shares Outstanding:        
Basic (in shares) 16,793,529 16,760,759 16,793,529 16,752,973
Diluted (in shares) 16,793,529 16,799,157 16,839,817 16,752,973