Employee Benefit Plans - 401(K) Saving And Retirement Plan (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Non Employee Director
Non-Employee Benefit Plan Compensation
Granted (in shares)	12,258	36,175	114,285
Compensation cost	$ 372	$ 228	$ 243
Savings And Retirement Plan 401 K
401(K) Savings & Retirement Plan
Percent of salary employee is permitted to contribute	100.00%
Vesting period	3 years
Common stock, shares issued	90,580	403,474	841,539
Total expense (including issuance of shares)	$ 4,300	$ 2,600	$ 1,900