Employee Stock Plans (Tables)

3 Months Ended

Mar. 31, 2022

Employee Stock Plans

Summary of RSU activity

				Weighted
		Weighted		Average
		Average		Remaining
		Grant Date		Contractual
	Shares	Fair value		Term
Unvested at December 31, 2021	79,903	$	48.87	1.91	years
Granted	103,358	$	36.98	0.93	years
Vested	(77,535)	$	40.97
Cancelled and forfeited	(5,612)	$	48.58
Unvested at March 31, 2022	100,114	$	42.72	1.75	years
Expected to vest in the future at March 31, 2022	97,745	$	42.72	1.75	years