Acquisition of MidCoast Community Bancorp, Inc, Asset Acquired and Liability Assumed (Details) - USD ($)		Apr. 17, 2020	Sep. 30, 2020	Dec. 31, 2019
Net assets acquired [Abstract]
Goodwill resulting from the MidCoast merger	[1]		$ 31,376,000	$ 23,296,000
Accumulated amortization	[1]		2,588,000	$ 2,283,000
MidCoast Community Bancorp, Inc [Member]
Asset Acquired and Liability Assumed [Abstract]
Total purchase price		$ 26,843,000
Net assets acquired [Abstract]
Cash and cash equivalents		8,637,000
Loans		223,235,000
Premises and equipment, net		1,787,000
Accrued interest receivable		586,000
Bank owned life insurance		3,766,000
Intangibles		157,000
Deferred tax asset		3,402,000
Other assets		2,878,000
Time deposits		(123,841,000)
Deposits other than time deposits		(84,985,000)
Accrued interest payable		(164,000)
Borrowings		(15,497,000)
Other liabilities		(1,198,000)
Net assets acquired		18,763,000
Goodwill resulting from the MidCoast merger		8,080,000
Goodwill and other intangibles		$ 8,237,000
Gross carrying amount of core deposit			157,000
Accumulated amortization			$ 12,000

[1] Excludes fully amortized intangible assets