Fair Value Accounting (Details 3) - USD ($) $ in Thousands		Dec. 31, 2020	Dec. 31, 2019
Financial Assets:
Other investments, at cost, Carrying Amount		$ 3,635	$ 6,948
Loans, Carrying Amount	[1]	2,085,756	1,914,870
Other investments, at cost, Fair Value		3,635	6,948
Loans, Fair Value	[1]	2,060,698	1,900,216
Financial Liabilities:
Deposits, Carrying Amount		2,142,758	1,876,124
FHLB and other borrowings, Carrying Amount		25,000	110,000
Subordinated debentures, Carrying Amount		35,998	35,890
Deposits, Fair Value		2,008,317	1,772,121
FHLB and other borrowings, Fair Value		24,972	109,737
Subordinated debentures, Fair Value		30,371	33,250
Estimate Of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 1 [Member]
Financial Assets:
Other investments, at cost, Fair Value
Loans, Fair Value	[1]
Financial Liabilities:
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Subordinated debentures, Fair Value
Estimate Of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 2 [Member]
Financial Assets:
Other investments, at cost, Fair Value
Loans, Fair Value	[1]
Financial Liabilities:
Deposits, Fair Value		2,008,317	1,772,121
FHLB and other borrowings, Fair Value		24,972	109,737
Subordinated debentures, Fair Value		30,371	33,250
Estimate Of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Other investments, at cost, Fair Value		3,635	6,948
Loans, Fair Value	[1]	2,060,698	1,900,216
Financial Liabilities:
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Subordinated debentures, Fair Value

[1] Carrying amount is net of the allowance for loan losses and previously presented impaired loans.