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Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2024

Class Of Stock [Line Items]

Schedule of Assumptions for Fair Value of Option Grant

In connection with the stock option grants during 2024 and 2023, the fair value of each option grant was estimated on the date of the grant using the Black-Scholes option pricing model with the following assumptions:

		2024		2023
Risk-free interest rate		4%		4%
Expected life (years)		7		7
Expected volatility		73%		65%
Expected dividend yield		Zero		Zero

Schedule of Changes in Common Stock Options

The following summarizes the changes in common stock options:

		2024												2023
		Options				Weighted Average Exercise Price				Aggregate Intrinsic Value (In thousands)				Options				Weighted Average Exercise Price				Aggregate Intrinsic Value (In thousands)
Outstanding at beginning of year			2,265,350			$	1.71								2,027,350			$	1.38
Granted			112,500				2.01								470,000				2.91
Exercised			(125,000	)			0.83								(102,125	)			0.86
Forfeited			(21,250	)			1.88								(129,875	)			1.72
Outstanding at end of year			2,231,600			$	1.77			$	971				2,265,350			$	1.71			$	2,580
Options exercisable at year end			1,536,725			$	1.48			$	926				1,275,225			$	1.02			$	2,042
Weighted-average fair value of options granted    during the year						$	1.46											$	2.91

Schedule of Information about All Stock Options Outstanding

The following table summarizes information about all stock options outstanding as of December 31, 2024:

Exercise price		Options Outstanding				Weighted Average Remaining Life (years)				Weighted Average Exercise Price				Number Exercisable				Weighted Average Remaining Life (years)				Weighted Average Exercise Price
$ 0.40 to $ 0.53			432,850				2.1			$	0.45				432,850				2.1			$	0.45
$ 0.70 to $ 0.85			180,625				4.5			$	0.73				180,625				4.5			$	0.73
$ 1.37 to $ 1.90			860,625				6.9			$	1.66				582,000				6.4			$	1.65
$ 2.39 to $ 3.55			757,500				7.6			$	2.90				341,250				6.8			$	2.88
			2,231,600												1,536,725

Schedule of stock based compensation expense

The following summarizes the restricted stock awards and related stock based compensation expense in 2024 and 2023 (in thousands, except share count and award fair value):

										Compensation Expense for the year ended,						Unrecognized Compensation Expense as of,
		Grant Date	Vesting Date	Restricted Stock Granted			Grant Date Fair Value			2023			2024			December 31, 2024
Ludwig Employment Agreements		June 1, 2018	May 31, 2023		600,000		$	0.43		$	22		$	—		$	—
Non-executive directors		August 3, 2022	March 31, 2023		75,000		$	1.58			44			—			—
Employees		March 1, 2023	March 1, 2024		97,290		$	2.53			—			—			—
Non-executive directors		March 31, 2023	March 31, 2024		90,000		$	2.87			176			45			—
Employees		March 7, 2024	March 7, 2025		128,044		$	2.93			—			308			68
Non-executive directors		March 7, 2024	March 7, 2025		75,000		$	2.93			—			180			40
Total										$	242		$	532		$	107

Other Options Issued [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

Other Options		2024				2023
Options outstanding, beginning of year			383,125				383,125
Options exercised			(90,000	)			—
Options outstanding, end of year			293,125				383,125

The outstanding options vest over four years at exercise prices ranging from $0.70 to $1.78 per share.

2010 Non-Qualified Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2010 Plan		2024				2023
Options outstanding, beginning of year			238,750				243,750
Options exercised			(21,250	)			(5,000	)
Options outstanding, end of year			217,500				238,750

2016 Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2016 Plan		2024				2023
Options outstanding, beginning of year			1,079,850				1,255,975
Options exercised			(10,000	)			(91,750	)
Options forfeited			(4,000	)			(84,375	)
Options outstanding, end of year			1,065,850				1,079,850

2022 Stock Option Plan [Member]

Class Of Stock [Line Items]

Schedule of Stock Options and Other Stock Options Issued

2022 Plan		2024				2023
Options outstanding, beginning of year			563,625				144,500
Options granted			112,500				470,000
Options exercised			(3,750	)			(5,375	)
Options forfeited			(17,250	)			(45,500	)
Options outstanding, end of year			655,125				563,625

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