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Equity (Tables)

6 Months Ended

Jun. 30, 2023

Schedule of Outstanding, Reserved and Authorized Shares under Share-based Compensation Plans

​

​	​	​	​	​
​	​	June 30,	​	December 31,
(in thousands)		2023		2022
Outstanding options and restricted stock units		3,409		3,202
Reserved but unissued shares under the Plans	​	2,439	​	2,777
Total authorized shares under the Plans		5,848		5,979

Schedule of stock option activity

​

​	​	​	​	​	​	​	​
​	​	June 30,
​	​	2023
(in thousands)	​	Options to Purchase Common Stock	​	Weighted Average Exercise Price		​	Weighted Average Remaining Contractual Life (in years)
Outstanding at beginning of year		2,779	​	$	2.05		6.43
Granted		—	​	$	—		—
Exercised		(20)	​	$	0.54		—
Forfeited/Expired		—	​	$	—		—
Outstanding at end of period		2,759	​	$	2.07		5.83
Exercisable at end of period		1,991	​	$	1.71		5.25

Schedule of share-based compensation activity

​

​	​	​	​
​	​	June 30,
(in thousands)		2023
Reserved but unissued shares at beginning of year	​	​	196
Increases in the number of authorized shares	​	​	5
Grants	​	​	(8)
Reserved but unissued shares at end of year	​		193

Schedule of restricted stock unit activity

​

​	​	​	​	​	​
​	​	June 30,
​	​	2023
(in thousands)	​	Number of Shares	​	Weighted Average Grant Date Fair Value
Nonvested at beginning of year		423	​	$	1.49
Granted		477	​	$	0.71
Vested		(245)	​	$	1.34
Forfeited	​	(5)	​	​	0.79
Nonvested at end of period		650	​	$	0.98

Restricted Stock Units

Schedule of Compensation Expense

​

​	​	​	​	​	​
​	For the Six Months Ended
​	June 30,
(in thousands)	2023			2022
Compensation Expense	$	212	$	70	​
Weighted Average Value Per Share	$	1.23	$	1.44	​

Equity Incentive Plan

Schedule of Compensation Expense

​

​	​	​	​	​	​	​
​	​	For the Six Months Ended
​	​	June 30,
​		2023			2022
Fair value	​	$	234	​	$	98
Weighted Average Value Per Share	​	$	0.79	​	$	1.43

Consultant Stock Plan

Schedule of Compensation Expense

​

​	​	​	​	​	​	​
​	​	For the Six Months Ended
​	​	June 30,
​		2023			2022
Compensation Expense	​	$	5	​	$	14
Weighted Average Value Per Share	​	$	0.66	​	$	1.93

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Tabular disclosure of share-based payment arrangement.

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