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Stock Options and Stock Grants (Tables)

12 Months Ended

Dec. 31, 2024

Share-Based Payment Arrangement [Abstract]

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

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

		Years ended December 31,
		2024				2023
Share-based compensation expense		$	725			$	773
Remaining unrecognized compensation expense			1,057				1,118
Remaining weighted average-period, expense recognition (years)			2.4				1.8

The following table illustrates the various assumptions used to calculate the Black-Scholes option pricing model for options granted for all years presented:

The following table illustrates the various assumptions used to calculate the Black-Scholes option pricing model for options granted for all years presented:

		Years Ended December 31,
		2024				2023
Weighted-average risk-free interest rates:			4.3	%			3.8	%
Dividend yield:			0	%			0	%
Weighted-average expected life (years) of the option:			4				4
Weighted-average expected stock price volatility:			91	%			93	%
Weighted-average fair value of the options granted:		$	1.74			$	0.50

Additional disclosures for options granted for all years presented:

Additional disclosures for options granted for all years presented:

		Years Ended December 31,
		2024				2023
Vesting period (years) of shares granted in period			3				3
Contractual life (years) of shares granted in period			7				7
Estimated forfeitures			8	%			8	%

The following table summarizes the option activity for our employees and directors during the year ended December 31, 2024:

The following table summarizes the option activity for our employees and directors during the year ended December 31, 2024:

										Weighted
						Weighted				Average				Aggregate
						Average				Remaining				Intrinsic
		Shares				Exercise Price				Contractual				Value
Options		(Rounded)				per Share				Term (Years)				(000s)
Outstanding on January 1, 2024			3,525,966			$	1.22				4.2			$	160
Granted			388,000			$	2.40
Exercised			(455,995	)		$	0.52
Forfeited or expired			(246,232	)		$	1.13
Outstanding on December 31, 2024			3,211,739			$	1.47				4.4			$	3,961
Exercisable on December 31, 2024			2,206,666			$	1.46				3.6			$	2,984
Shares available for grant			62,900

The aggregate intrinsic value in the table above is based on our closing stock price of $2.26

The aggregate intrinsic value in the table above is based on our closing stock price of $2.26 on the last business day for the year ended December 31, 2024.

		Years ended December 31,
		2024				2023
Shares exercised			455,995				294,074
Total intrinsic value		$	370			$	195
Cash received		$	239			$	154

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of number, weighted-average exercise price or conversion ratio, aggregate intrinsic value, and weighted-average remaining contractual term for exercisable or convertible options that are fully vested and expected to vest. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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