Low-Income Housing Tax Credits (Details) $ in Thousands		12 Months Ended
		Dec. 31, 2021 USD ($) Fund	Dec. 31, 2020 USD ($) Fund
Low-Income Housing Tax Credits [Abstract]
Number of housing equity funds | Fund		4	4
Low-income housing investment		$ 1,900	$ 2,300
Additional committed capital calls expected		0	18
Amortization expense		410	688
Tax credits and other benefits [Abstract]
Amortization of operating losses		410	688
Tax benefit of operating losses	[1]	86	144
Tax credits		361	419
Total tax benefit		$ 447	$ 563
Effective income tax rate		21.00%

[1] Computed using a 21% tax rate.