Securities and loans pledged to secure public and trust deposits, securities sold under agreements to repurchase, FHLBB advances and credit facilities available (Details) - S A L Guarantee Type Other [Member] $ in Thousands	Jun. 30, 2023 USD ($)
Securities available-for-sale (at fair value)	$ 100,349
Loans receivable (at book value)	373,245
Total pledged assets	$ 473,594