Business and Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Jan. 01, 2020	Dec. 31, 2017
Accounting Policy [Line Items]
Equity Method Investment, Ownership Percentage	100.00%
Financing Receivable, Individually Evaluated for Impairment		$ 4,478,000	$ 6,926,000
Goodwill impairment	$ 0	0	0
BOLI single carrier percentage of Tier I capital	15.00%
BOLI CSV percentage of Tier I Capital	25.00%
Number of Reporting Unit Levels	1
Operating Lease, Right-of-Use Asset	$ 13,608,000	13,002,000
Operating lease liabilities	11,845,000	13,059,000
Shareholders’ equity	529,314,000	473,415,000	435,825,000		$ 403,413,000
Financing Receivable, Allowance for Credit Losses	37,865,000	25,171,000	24,712,000		24,171,000
Off-Balance Sheet, Credit Loss, Liability	2,600,000	21,000
Deferred tax assets	11,956,000	16,823,000
Other Real Estate	236,000	94,000
Debt Securities, Available-for-sale, Allowance for Credit Loss	0			$ 0
Cumulative Effect, Period of Adoption, Adjustment
Accounting Policy [Line Items]
Shareholders’ equity		(2,809,000)	254,000
Financing Receivable, Allowance for Credit Losses		233,000
Off-Balance Sheet, Credit Loss, Liability		3,300,000
Deferred tax assets		769,000
Minimum [Member]
Accounting Policy [Line Items]
Financing Receivable, Individually Evaluated for Impairment	500,000
Retained Earnings
Accounting Policy [Line Items]
Shareholders’ equity	377,502,000	340,580,000	302,030,000		266,723,000
Retained Earnings | Cumulative Effect, Period of Adoption, Adjustment
Accounting Policy [Line Items]
Shareholders’ equity		(2,809,000)	254,000
Retained Earnings | ASU 2016-01 | Cumulative Effect, Period of Adoption, Adjustment
Accounting Policy [Line Items]
Shareholders’ equity					198,000
AOCI
Accounting Policy [Line Items]
Shareholders’ equity	$ 20,740,000	$ (6,268,000)	$ (24,420,000)		(20,214,000)
AOCI | ASU 2016-01 | Cumulative Effect, Period of Adoption, Adjustment
Accounting Policy [Line Items]
Shareholders’ equity					$ (198,000)