Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Revenues	$ 26,677	$ 25,133
Costs and expenses:
Cost of sales	14,294	14,510
Selling, general and administrative	14,050	13,761
Research and development	2,014	1,564
Total costs and expenses	30,358	29,835
Operating income (loss) from continuing operations	(3,681)	(4,702)
Interest income	1,415	1,251
Other (expense) income, net	(43)	1,585
Loss before income taxes	(2,309)	(1,866)
Income tax expense	(15)	(77)
Net loss	$ (2,324)	$ (1,943)
Net loss per common share:
Basic net loss per common share (in dollars per share)	$ (0.08)	$ (0.06)
Diluted net loss per common share (in dollars per share)	$ (0.08)	$ (0.06)
Weighted-average number of common shares outstanding:
Basic (in shares)	30,937,000	30,572,000
Diluted (in shares)	30,937,000	30,572,000