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Stockholders' Equity Transactions (Details) - $ / shares | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Sep. 16, 2014
Equity, Class of Treasury Stock [Line Items] |  |  |
Stock Repurchase Program, Number of Shares Authorized to be Repurchased |  |  | 1,000,000
Common Stock Shares Outstanding | 18,347,351 | 18,347,351 | 19,400,000
Stock Repurchased During Period, Shares | 0 |  |
Treasury Stock Acquired, Average Cost Per Share |  | $ 16.99 |
Employees and Directors [Member] |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Stock Options Exercised (in shares) |  | 15,600 |
Stock Issued During Period Shares Cashless Exercise of Stock Options |  | 3,600 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  | 1,628 |
Treasury Stock |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Treasury Stock, Shares, Acquired |  | 144,405 |

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