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Consolidated Statements of Stockholders’ Equity (USD $)
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Total
Balances, September 30, 2012 at Sep. 30, 2012 $ 324 $ 86,358,011 $ (63,936,566) $ 22,421,769
Balances, September 30, 2012 (in Shares) at Sep. 30, 2012 32,374,499      
Issuance of common stock upon exercise of stock options , net 5 340,445   340,450
Issuance of common stock upon exercise of stock options , net (in Shares) 526,206     526,206
Share-based compensation expense   736,378   736,378
Net income     1,262,812 1,262,812
Balances at Sep. 30, 2013 329 87,434,834 (62,673,754) 24,761,409
Balances (in Shares) at Sep. 30, 2013 32,900,705      
Issuance of common stock upon exercise of stock options , net 6 544,887   544,893
Issuance of common stock upon exercise of stock options , net (in Shares) 612,941     612,941
Share-based compensation expense   585,753   585,753
Repurchase of common stock (3) (516,349)   (516,352)
Repurchase of common stock (in Shares) (277,157)      
Net income     3,327,088 3,327,088
Balances at Sep. 30, 2014 $ 332 $ 88,049,125 $ (59,346,666) $ 28,702,791
Balances (in Shares) at Sep. 30, 2014 33,236,489