Fair Value Accounting (Schedule of Estimated Fair Values of the Company's Financial Instruments) (Details) - USD ($) $ in Thousands		Mar. 31, 2020	Dec. 31, 2019
Financial Assets:
Other investments, at cost, Carrying Amount		$ 5,341	$ 6,948
Loans, Carrying Amount		1,989,927	1,914,870
Other investments, at cost, Fair Value		5,341	6,948
Loans, Fair Value	[1]	1,942,206	1,900,216
Financial Liabilities:
Deposits, Carrying Amount		2,025,698	1,876,124
FHLB and other borrowings, Carrying Amount		65,000	110,000
Junior subordinated debentures, Carrying Amount		35,917	35,890
Deposits, Fair Value		1,947,258	1,772,121
FHLB and other borrowings, Fair Value		65,021	109,737
Junior subordinated debentures, Fair Value		31,989	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
Junior 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		1,947,258	1,772,121
FHLB and other borrowings, Fair Value		65,021	109,737
Junior subordinated debentures, Fair Value		31,989	33,250
Estimate Of Fair Value, Fair Value Disclosure [Member] | Fair Value, Inputs, Level 3 [Member]
Financial Assets:
Other investments, at cost, Fair Value		5,341	6,948
Loans, Fair Value	[1]	1,942,206	1,900,216
Financial Liabilities:
Deposits, Fair Value
FHLB and other borrowings, Fair Value
Junior subordinated debentures, Fair Value

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