Fair Value of Financial Instruments - Assets and Liabilities Carried at Fair Value on a Recurring Basis, Classified Within Level 3 (Details) - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Trust Preferred Securities [Member]
Beginning balance	$ 1,295	$ 1,332
Net gain (loss) from fair value adjustment of financial assets	400	(34)
Decrease in accrued interest receivable		(3)
Ending balance	1,695	1,295
Junior Subordinated Debentures [Member]
Beginning balance	43,136	44,384
Net loss (gain) from fair value adjustment of financial liabilities	14,004	50
Decrease in accrued interest receivable	(4)	(103)
Change in unrealized gains included in other comprehensive income	(664)	(1,195)
Ending balance	56,472	43,136
Changes in unrealized gains held at period end	$ 3,334	$ 2,670