v3.7.0.1
Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
Jun. 30, 2017
Sep. 30, 2016
Statement of Financial Position [Abstract]    
Accounts receivable, allowance for uncollectibles $ 282,829 $ 76,934
Common stock, par value (in dollars per share) $ 5 $ 5
Common stock, shares authorized 10,000,000 10,000,000
Common stock, shares issued 7,231,535 7,182,434
Common stock, share outstanding 7,231,535 7,182,434
Preferred stock, par value (in dollars per share) $ 0 $ 0
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, share outstanding 0 0