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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2022	Sep. 30, 2021
Statement of Financial Position [Abstract]
Fair value of investment securities - held to maturity	$ 79,306	$ 57,282
Allowance for loan losses	$ 8,300	$ 8,075
Preferred stock; par value	$ 1	$ 1
Preferred stock; shares authorized	500,000	500,000
Preferred stock; shares issued	0	0
Common stock; par value	$ 1	$ 1
Common stock; shares authorized	14,000,000	14,000,000
Common stock; shares issued	7,097,825	7,097,825
Common stock, shares outstanding	7,097,825	7,097,825
Treasury stock, shares	112,996	112,996

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Face amount or stated value per share of common stock.

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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