Securities, Held-to-maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	$ 54,706	$ 20,858
Gross Unrealized Gains	679	1,021
Gross Unrealized Losses	777	0
Fair Value	54,608	21,879
Debt Securities [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	52,818	17,655
Gross Unrealized Gains	658	1,017
Gross Unrealized Losses	777	0
Fair Value	52,699	18,672
GNMA Mortgage-Backed Securities [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	782	1,109
Gross Unrealized Gains	17	20
Gross Unrealized Losses	0	0
Fair Value	799	1,129
FNMA Mortgage-Backed Securities [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	42,160	16,546
Gross Unrealized Gains	641	997
Gross Unrealized Losses	500	0
Fair Value	42,301	17,543
FHLMC Mortgage-Backed Certificates [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	9,876
Gross Unrealized Gains	0
Gross Unrealized Losses	277
Fair Value	9,599
Municipals [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	1,361	243
Gross Unrealized Gains	21	4
Gross Unrealized Losses	0	0
Fair Value	1,382	247
Equity Securities (Non-Marketable) [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	527	2,960
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	527	2,960
Federal Home Loan Bank [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	277	2,710
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 277	$ 2,710
Number of equity shares (in shares)	2,766	27,094
First National Bankers Bankshares, Inc. [Member]
Held-to-maturity Securities, Fair Value to Amortized Cost Basis [Abstract]
Amortized Cost	$ 250	$ 250
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	$ 250	$ 250
Number of equity shares (in shares)	630	630

Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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

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