4. Stock-Based Compensation — Under the Company’s Equity Incentive Plan of 1993, as amended (“the Plan”), all employees are eligible to receive non-assignable and non-transferable restricted stock (RSUs), options to purchase common stock, and other forms of equity. During the three months ended March 31, 2026 and 2025, the Company's stock-based compensation expense amounted to $186 and $559, respectively.

A summary of nonvested RSUs outstanding is presented below:


	Three Months Ended March 31, 2026
	Number of Shares			Weighted Average Grant Date Fair Value
Nonvested shares at January 1, 2026		448,399		$	10.12
Vested		(11,245	)		7.49
Forfeited		(15,217	)		20.10
Nonvested shares at March 31, 2026		421,937		$	9.83

As of March 31, 2026, the total unrecognized stock-based compensation expense related to RSUs outstanding was $844 and is expected to be recognized over a weighted-average service period of 2.9 years.

Incentive Stock Option Plans - A summary of the inventive stock option activity for the three month ended March 31, 2026 is presented below:


	Options outstanding			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
Balance as of January 1, 2026		357,024		$	10.28		4.9	$	—
Forfeited		(28,417	)	$	8.59		4.7	$	—
Balance as of March 31, 2026		328,607		$	10.72		4.7	$	—
Options vested and exercisable as of March 31, 2026		240,597		$	10.28		4.7	$	—