The Company uses judgment in determining the fair value of the share-based payments on the date of grant using an option-pricing model with assumptions regarding a number of highly complex and subjective variables. These variables include, but are not limited to, the risk-free interest rate of the awards, the expected life of the awards, the expected volatility over the term of the awards, and the expected dividends of the awards. The Company uses the Black-Scholes option pricing model to determine the fair value of share-based payments granted under the guidelines of ASC Topic 718.

A summary of the stock option activity under the Company’s plans for the three months ended March 31, 2026, is as follows:

	Number of shares		Weighted average exercise price
Options outstanding at beginning of year		19,716	$	35.33
Granted		—		—
Less:
Canceled or expired		14,382		12.58
Options outstanding at March 31, 2026		5,334		96.60
Options exercisable at end of March 31, 2026		5,334	$	96.60

As of March 31, 2026, the total remaining unrecognized compensation cost related to non-vested stock options, net of forfeitures, was $0.

	Three months ended March 31,
	2026		2025
Cost of goods sold	$	—	$	—
Sales and marketing		—		1
Research and product development		—		4
General and administrative		—		18
	$	—	$	23