Loans, Collateral Dependent Loans and Loans With/Without Specific Valuation Allowance (Details) - Commercial [Member] - Collateral Pledged [Member] $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2021 USD ($) Loan	Sep. 30, 2020 USD ($) Loan	Dec. 31, 2020 USD ($) Loan
Total loans [Abstract]
Number of Loans | Loan	19	21	22
Recorded balance	$ 39,970	$ 60,759	$ 63,574
Specific Allowance	$ 1,200	$ 800	$ 450
Hotel/Motel [Member]
Total loans [Abstract]
Number of Loans | Loan	2	4	5
Recorded balance	$ 9,522	$ 24,357	$ 26,194
Specific Allowance	$ 600	$ 250	$ 250
Commercial Real Estate Residential [Member]
Total loans [Abstract]
Number of Loans | Loan	4	4	4
Recorded balance	$ 7,363	$ 7,932	$ 7,833
Specific Allowance	$ 0	$ 0	$ 0
Commercial Real Estate Nonresidential [Member]
Total loans [Abstract]
Number of Loans | Loan	12	11	12
Recorded balance	$ 21,920	$ 22,383	$ 24,497
Specific Allowance	$ 200	$ 200	$ 200
Commercial Other [Member]
Total loans [Abstract]
Number of Loans | Loan	1	2	1
Recorded balance	$ 1,165	$ 6,087	$ 5,050
Specific Allowance	$ 400	$ 350	$ 0