Level 3 Reconciliation (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Pooled Trust Preferred Securities [Member] | Fair Value, Inputs, Level 3 [Member]
Reconciliation for all assets and liabilities measured at fair value on a recurring basis
Beginning balance		$ 1,114	$ 1,329	$ 1,640
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, (Sales), Issuances, (Settlements)		(58)	(189)	(502)
Sales		0	(26)	191
Ending Balance		1,056	$ 1,114	$ 1,329
Collateral Dependent Loans [Member] | Fair Value, Nonrecurring [Member]
Reconciliation for all assets and liabilities measured at fair value on a recurring basis
Assets, Fair Value Disclosure		31,510
Collateral Dependent Loans [Member] | Fair Value, Inputs, Level 3 [Member] | Fair Value, Nonrecurring [Member]
Reconciliation for all assets and liabilities measured at fair value on a recurring basis
Assets, Fair Value Disclosure	[1]	$ 31,510

[1] Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable. Appraisals may be adjusted by management for qualitative factors such as economic factors and estimated liquidation expenses. The range of these possible adjustments may vary.