STOCK-BASED COMPENSATION (Tables)

12 Months Ended

Dec. 31, 2021

STOCK-BASED COMPENSATION

Schedule of stock-based compensation expense

Stock‑based compensation expense is included in the consolidated statements of income as follows:

	Year Ended December 31,
(In thousands)	2021		2020		2019
General and administrative	$	2,017	$	1,698	$	2,056

Schedule of stock-based compensation expense included in the consolidated statements of operations by award type

Stock‑based compensation expense included in the consolidated statements of income by award type is as follows:

	Year Ended December 31,
(In thousands)	2021		2020		2019
Stock options	$	490	$	242	$	—
RSUs		1,280		1,149		1,431
RSAs		200		273		615
ESPP		47		34		10
Total stock-based compensation expense	$	2,017	$	1,698	$	2,056

Schedule of unrecognized stock-based compensation cost

As of December 31, 2021, the unrecognized stock-based compensation cost and the estimated weighted-average amortization period were as follows:

(In thousands)	Unrecognized Compensation Cost		Weighted-Average Amortization Period (Years)
Stock options	$	1,507		2.8
RSUs		574		0.5
RSAs		327		2.6
Total unrecognized compensation expense	$	2,408

Summary of equity award activity and related information

The following table summarizes equity award activity under the 2012 Plan and prior plans and related information:

(In thousands, except per share data)	Number of outstanding options			Weighted-Average Exercise Price of Outstanding Options		Number of outstanding RSUs			Weighted-Average Fair Value per Share at Grant		Number of outstanding RSAs			Weighted-Average Fair Value per Share at Grant
Balance as of December 31, 2020		1,155		$	22.28		85		$	13.30		30		$	14.61
Granted		116			13.28		117			12.81		19			12.44
Exercised		(73	)		14.69		—			—		—			—
Released RSUs/RSAs		—			—		(86	)		13.28		(14	)		14.57
Forfeited		(432	)		23.81		—			—		(6	)		13.80
Balance as of December 31, 2021		766			20.79		116			12.82		29			13.35

Summary of weighted-average assumptions used to calculate estimated value of stock options

The weighted-average assumptions used in calculating the estimated value of our stock options on the date of grant as follows:

	Year Ended December 31,
	2021			2020
Risk-free interest rate		1.1	%		0.4	%
Expected term (in years)		6.11			6.11
Volatility		44.9	%		46.9	%
Dividend yield		0.0	%		0.0	%
Weighted-average estimated fair value of stock options granted	$	5.84		$	6.28