Fair Value of Assets and Liabilities (Fair Value, by Balance Sheet Grouping) (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets: Cash and cash equivalents, Fair Value Disclosure	$ 166,026	$ 206,681
Financial assets: Loans receivable, net, Fair Value Disclosure	1,383,948	1,389,870
Financial assets: Mortgage servicing rights, Fair Value Disclosure	500	500
Financial assets: Regulatory stock, Fair Value Disclosure	3,423	3,927
Financial assets: Bank owned life insurance, Fair Value Disclosure	40,215	40,038
Financial assets: Accrued interest receivable, Fair Value Disclosure	5,876	5,889
Financial liabilities: Deposits, Fair Value Disclosure	1,784,253	1,759,722
Financial liabilities: Short-term borrowings, Fair Value Disclosure	63,622	60,822
Financial liabilities: Other borrowings, Fair Value Disclosure	26,589	30,221
Financial liabilities: Accrued interest payable, Fair Value Disclosure	1,160	1,203
Financial assets: Cash and cash equivalents	166,026	206,681	$ 210,499	$ 111,693
Financial assets: Loans receivable, net	1,354,985	1,338,489
Financial assets: Mortgage servicing rights	267	289
Financial assets: Regulatory stock	3,423	3,927
Financial assets: Bank owned life insurance	40,215	40,038
Financial assets: Accrued interest receivable	5,876	5,889
Financial liabilities: Deposits	1,781,777	1,756,793
Financial liabilities: Short-term borrowings	63,622	60,822
Financial liabilities: Other borrowings	26,844	29,998
Financial liabilities: Accrued interest payable	1,160	1,203
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets: Cash and cash equivalents, Fair Value Disclosure	166,026	206,681
Financial assets: Regulatory stock, Fair Value Disclosure	3,423	3,927
Financial assets: Bank owned life insurance, Fair Value Disclosure	40,215	40,038
Financial assets: Accrued interest receivable, Fair Value Disclosure	5,876	5,889
Financial liabilities: Deposits, Fair Value Disclosure	1,295,792	1,228,091
Financial liabilities: Short-term borrowings, Fair Value Disclosure	63,622	60,822
Financial liabilities: Accrued interest payable, Fair Value Disclosure	1,160	1,203
Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Financial assets: Loans receivable, net, Fair Value Disclosure	1,383,948	1,389,870
Financial assets: Mortgage servicing rights, Fair Value Disclosure	500	500
Financial liabilities: Deposits, Fair Value Disclosure	488,461	531,631
Financial liabilities: Other borrowings, Fair Value Disclosure	$ 26,589	$ 30,221