Annual report pursuant to Section 13 and 15(d)

Equity Incentive Plans - Schedule of Unvested Restricted Stock Units Awards Activity (Details)

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Equity Incentive Plans - Schedule of Unvested Restricted Stock Units Awards Activity (Details) - Restricted Stock Unit - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of RSUs, Beginning Balance 141,508 114,996 110,764
Number of RSUs, Granted 84,035 91,759 62,382
Number of RSUs, Vested (80,972) (54,970) (58,150)
Number of RSUs, Forfeited (15,761) (10,277)  
Number of RSUs, Ending Balance 128,810 141,508 114,996
Weighted Average Grant Date Fair Value per RSU, Beginning Balance $ 29.67 $ 30.24 $ 19.58
Weighted Average Grant Date Fair Value per RSU, Granted 37.86 31.75 44.05
Weighted Average Grant Date Fair Value per RSU, Vested 29.22 32.12 24.75
Weighted Average Grant Date Fair Value per RSU, Forfeited 31.38 41.50  
Weighted Average Grant Date Fair Value per RSU, Ending Balance $ 35.09 $ 29.67 $ 30.24
Aggregate Fair Value of RSUs' Vested $ 3,078 $ 1,766 $ 2,610