Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

The Company recognized share-based compensation in its Consolidated Statements of Operations during the periods presented as follows:


Expense classification:	Year Ended December 31, 2021		Year Ended December 31, 2020
Manufacture and supply	$	313	$	275
Research and development	881		729
Selling, general and administrative	5,625		5,577
Total share-based compensation expenses	$	6,819	$	6,581
Share-based compensation from:
Restricted Stock Units	81		806
Stock Options	6,714		5,751
Employee Stock Purchase Plan	24		24
Total share-based compensation expenses	$	6,819	$	6,581

The following table summarizes the Company’s awards of restricted stock units for the years during 2020 and 2021:


	Number of Units	Weighted Average Grant Date Fair Value Per Share
	(In thousands)
Unvested, December 31, 2019	74	$	14.64
Granted	4	7.54
Forfeited	—	—
Vested	(64)	14.88
Unvested, December 31, 2020	14	$	11.38
Granted	—	—
Forfeited	(2)	13.00
Vested	(12)	11.14
Unvested, December 31, 2021	—

The following table summarizes the Company’s stock option activity for the years during 2020 and 2021:


(in 000s, except share price data)	Number of Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term in Years	Aggregate Intrinsic Value
Outstanding at December 31, 2019	2,231	$	10.42	8.94	$	689
Granted	1,168	$	3.32
Forfeited	(140)	$	4.36
Exercised	—
Outstanding at December 31, 2020	3,259	$	8.14	8.42	$	2,978
Granted	1,212	4.73
Forfeited and Expired	(264)	$	7.52
Exercised	(61)	$	1.58
Outstanding at December 31, 2021	4,146	$	7.28	7.88	$	1,423
Vested and expected to vest at December 31, 2021	4,026	$	7.36	7.85	$	1,377
Exercisable at December 31, 2021	1,855	$	10.44	6.98	$	365

The fair values of stock options granted were estimated using the Black-Scholes model based on the following assumptions: