Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Stock-Based Compensation

Summary of stock option activity

		Options Outstanding
			Weighted-		Weighted-
	Options and		Average		Average	Aggregate
	Awards		Exercise		Remaining	Intrinsic
	Available for	Number of	Price Per		Contractual	Value
	Grant	Options	Share		Life (years)	(In thousands)
Balance—December 31, 2020	179,219	2,272,905	$	5.58	7.9	$	1,640
Authorized	570,946	—
RSUs granted	(236,605)	—
RSUs cancelled/forfeited	31,626	—
Options granted	(39,500)	39,500	$	5.52
Options exercised	—	(54,077)	$	2.66		$	194
Options cancelled/forfeited	134,857	(136,432)	$	3.96
Balance—March 31, 2021	640,543	2,121,896	$	5.75	6.1	$	2,359
Options exercisable—March 31, 2021		1,288,863	$	6.81	4.5	$	586

Schedule of restricted stock unit activity

	RSUs Outstanding
		Weighted-
		Average
	Number of	Grant Date
	Restricted Stock	Fair Value Per
	Units	Share
Balance—December 31, 2020	416,742	$	4.89
Granted	236,605		5.71
Vested	(136,709)		5.16
Cancelled/forfeited	(31,626)		4.12
Balance—March 31, 2021	485,012	$	5.26