Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

We follow ASC Topic 718, Stock-Based Payments, in which compensation expense is recognized only for stock-based payments expected to vest.

We follow ASC Topic 718, Stock-Based Payments, in which compensation expense is recognized only for stock-based payments expected to vest. 

	Three months ended March 31,
	2023		2022
Stock-based compensation expense	$	209	$	148
Remaining unrecognized compensation expense	$	1,577
Remaining weighted average-period, expense recognition (years)		2.1

Schedule of option activity

The following table summarizes the option activity for our employees and directors during the three months ended March 31, 2023:

				Weighted
				Average
				Exercise Price
Options	Shares			per Share
Outstanding on January 1, 2023		3,443,661		$	1.33
Granted		—		$	—
Exercised		(199,891	)
Forfeited or expired		(18,000	)
Outstanding on March 31, 2022		3,225,770		$	1.37