STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2022

Summary of Stock option and restricted stock activity

A summary of stock option and restricted stock activity under the 2022 Plan and Inducement Grants during the three months ended March 31, 2022 and 2021 is presented below:

(in thousands)	Options	Inducement Grants	RSAs
Outstanding at December 31, 2020	756	180	352
Granted	42	61	438
Options Exercised/RSAs Vested	—	—	(34)	(1)
Forfeited	(10)	—	(38)
Expired	—	—	—
Outstanding at March 31, 2021	788	241	718
Outstanding at December 31, 2021	747	241	707
Granted	27	—	460
Options Exercised/RSAs Vested	—	—	(161)	(2)
Forfeited	—	—	—
Expired	—	—	—
Outstanding at March 31, 2022	774	241	1,006

(1) Includes 10 thousand shares purchased from employees to cover employee income taxes related to income earned upon vesting of restricted stock. The shares purchased are held in treasury and the $348 thousand total purchase price for the shares is included in Treasury stock in our accompanying unaudited interim condensed consolidated balance sheets.

(2) Includes 40 thousand shares purchased from employees to cover employee income taxes related to income earned upon vesting of restricted stock. The shares purchased are held in treasury and the $1.1 million total purchase price for the shares is included in Treasury stock in our accompanying unaudited interim condensed consolidated balance sheets.

Employee Stock Purchase Plan 2016 [Member]

Summary of allocated expense

(in thousands)	Three Months Ended March 31,
	2022		2021
Cost of sales	$	10	$	4
Research and development		7		5
Selling, general, and administrative		21		23
	$	38	$	32

Stock Incentive Plan

Summary of allocated expense

(in thousands)	Three Months Ended March 31,
	2022		2021
Cost of sales	$	135	$	—
Research and development		246		114
Selling, general, and administrative		2,818		1,723
	$	3,199	$	1,837