Equity Plans - Schedule of Compensation Costs Charged to Income and Proceeds from the Exercise of Any Restricted Stock and Similar Instruments that are Recorded to Additional Paid-In Capital and Common Stock, by Award Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	$ 1,041	$ 791	$ 2,593	$ 2,071
Restricted stock and deferred restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	1,041	791	2,408	1,890
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation costs charged to income:	0	0	185	181
ESPP proceeds	$ 0	$ 0	$ 1,049	$ 1,026