Commitments and Contingent Liabilities (Details) - The Bank of Greene County [Member] - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Commitments [Abstract]
Total commitments	$ 238,143	$ 299,580
Unfunded Loan Commitments [Member]
Commitments [Abstract]
Total commitments	147,171	213,420
Unused Lines of Credit [Member]
Commitments [Abstract]
Total commitments	90,083	85,971
Standby Letters of Credit [Member]
Commitments [Abstract]
Total commitments	$ 889	$ 189