Employee Benefit Plans - 401(K) Saving And Retirement Plan (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Non Employee Director
Employee Benefit Plan Compensation
Granted (in shares)	2,585	7,657	5,238	22,490
Compensation cost	$ 94	$ 55	$ 179	$ 111
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			12,513	175,978
Total expense (including issuance of shares)	$ 900	$ 800	$ 2,200	$ 1,300