STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2021

Summary of Stock option and restricted stock activity

A summary of stock option and restricted stock activity under the 2008 Plan and Inducement Grants during the three months ended March 31, 2021 and 2020 is presented below:

(in thousands)	Options	Inducement Grants	RSAs
Outstanding at December 31, 2019	757	—	192
Granted	8	—	—
Options Exercised/RSAs Vested	(7)	—	(49)	(1)
Forfeited	(3)	—	—
Expired	—	—	—
Outstanding at March 31, 2020	755	—	143
Outstanding at December 31, 2020	756	180	352
Granted	42	61	438
Options Exercised/RSAs Vested	—	—	(34)	(2)
Forfeited	(10)	—	(38)
Expired	—	—	—
Outstanding at March 31, 2021	788	241	718

(1) Includes 13 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 $488 thousand total purchase price for the shares is included in Treasury stock in our accompanying unaudited interim condensed consolidated balance sheets.

(2) 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.

Employee Stock Purchase Plan 2016 [Member]

Summary of allocated expense

(in thousands)	Three Months Ended March 31,
	2021		2020
Cost of sales	$	4	$	4
Research and development		5		7
Selling, general, and administrative		23		18
	$	32	$	29

Stock Incentive Plan 2008 [Member]

Summary of allocated expense

	Three Months Ended March 31,
(in thousands)	2021		2020
Cost of sales	$	—	$	26
Research and development		114		187
Selling, general, and administrative		1,723		2,182
	$	1,837	$	2,395