Equity (Tables)

3 Months Ended

Mar. 31, 2022

Equity Incentive Plan [Member]

Schedule of share-based compensation activity

Ending balances of the Plans are as follows:

	March 31,	December 31,
(in thousands)	2022	2021
Outstanding options and restricted stock units	3,307	3,076
Reserved but unissued shares under the Plans	2,758	2,901
Total authorized shares under the Plans	6,065	5,977

Stock options

Schedule of weighted-average assumptions used in calculation of fair value of stock options

The following weighted-average assumptions were utilized in the calculation of the fair value of stock options:

	March 31,
	2022
Expected life	5.71 years
Weighted average volatility	77.64	%
Weighted average risk-free interest rate	1.39	%
Expected dividend rate	0	%

Schedule of stock option activity

A summary of the Company’s stock option activity and changes is as follows:

	March 31,
	2022
				Weighted
				Average
	Options to	Weighted		Remaining
	Purchase	Average		Contractual
	Common	Exercise		Life (in
(in thousands)	Stock	Price		years)
Outstanding at January 1	2,964	$	2.06	6.89
Granted	88	$	1.26	9.76
Exercised	(3)	$	0.89	—
Forfeited/Expired	(10)	$	2.93	—
Outstanding at March 31	3,039	$	2.03	6.76
Exercisable at March 31	2,202	$	1.71	6.05

Consultant Stock Plan

Schedule of share-based compensation activity

	For the Three Months Ended
	March 31,
	2022		2021
Compensation Expense	$	7	$	9
Weighted Average Value Per Share	$	1.93	$	2.33

Schedule of stock option activity

	March 31,
(in thousands)	2022
Reserved but unissued shares January 1		211
Grants		(4)
Reserved but unissued shares		207