Note 17. Stock Compensation - Stock Compensation Awards (Details) - $ / shares	3 Months Ended
Dec. 31, 2020	Sep. 30, 2020
Relative Total Shareholder Return
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	17,285	82,036
Stock Compensation, Grant Date Fair Value		$ 11.35
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	415,513	165,529
Unrestricted Shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Shares Awarded	11,042	12,592
Stock Compensation, Grant Date Fair Value		$ 11.02
Minimum \| Relative Total Shareholder Return
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	$ 10.68
Minimum \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	11.08	10.94
Minimum \| Unrestricted Shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	10.65
Maximum \| Relative Total Shareholder Return
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	$ 12.63
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	190,664
Maximum \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	$ 12.25	$ 11.28
Maximum \| Unrestricted Shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock Compensation, Grant Date Fair Value	$ 10.67

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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