Annual report pursuant to Section 13 and 15(d)

Note C - Shareholders' Equity - Restricted Stock Transactions (Details)

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Note C - Shareholders' Equity - Restricted Stock Transactions (Details) - Restricted Stock [Member] - $ / shares
12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Balance, unvested shares (in shares) 248,613 370,530
Balance, weighted-average grant date fair value (in dollars per share) $ 14.65 $ 15.24
Granted (in shares) 4,340 7,235
Granted, weighted-average grant date fair value (in dollars per share) $ 14.40 $ 14.17
Vested (in shares) (110,683) (113,930)
Vested, weighted-average grant date fair value (in dollars per share) $ 16.31 $ 16.45
Forfeited (in shares) (11,830) (15,222)
Forfeited, weighted-average grant date fair value (in dollars per share) $ 14.47 $ 15.41
Balance, unvested shares (in shares) 130,440 248,613
Balance, weighted-average grant date fair value (in dollars per share) $ 13.25 $ 14.65