Employee Stock Plans (Tables)

9 Months Ended

Sep. 30, 2021

Employee Stock Plans

Summary of RSU activity

				Weighted
		Weighted		Average
		Average		Remaining
		Grant Date		Contractual
	Shares	Fair value		Term
Unvested at December 31, 2020	36,022	$	42.73	1.40	years
Granted	133,718	$	44.49	1.19	years
Vested	(88,225)	$	39.73
Cancelled and forfeited	(835)	$	44.49
Unvested at September 30, 2021	80,680	$	48.90	2.16	years
Expected to vest in the future at September 30, 2021	79,873	$	48.90	2.16	years