Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED BALANCE SHEETS (PARENTHETICAL)

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CONSOLIDATED BALANCE SHEETS (PARENTHETICAL) - $ / shares
Sep. 30, 2017
Sep. 30, 2016
Statement of Financial Position [Abstract]    
Preferred stock, par value per share (in dollars per share) $ 0 $ 0
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000
Preferred stock, shares issued (in shares) 0 0
Common stock, par value per share (in dollars per share) $ 1 $ 1.00
Common stock, shares authorized (in shares) 15,000,000 15,000,000
Common stock, shares issued (in shares) 8,416,145 8,416,145
Common stock, shares outstanding (in shares) 8,238,830 8,315,535
Treasury stock at cost, shares (in shares) 177,315 100,610