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Equity Plans (Tables)
9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
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
A summary of compensation costs charged to income and proceeds from the exercise of restricted stock and similar instruments that are recorded to additional paid-in capital and common stock, by award type, are presented below for the three and nine months ended September 30, 2022, and 2021:
 Three months ended September 30,Nine months ended September 30,
 2022202120222021
Compensation costs charged to income:
   ESPP$184 176 $369 357 
   Restricted stock and deferred restricted stock1,214 954 3,622 2,844 
Total compensation costs charged to income$1,398 1,130 $3,991 3,201 
ESPP proceeds$1,042 1,000 $2,091 2,026