Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) [Abstract]
Net sales	$ 17,482	$ 18,410	$ 37,842	$ 38,910
Cost of sales	6,561	7,909	15,102	16,478
Gross profit	10,921	10,501	22,740	22,432
Operating expenses	10,131	11,238	20,969	22,339
Income (loss) from operations	790	(737)	1,771	93
Other (income) expense:
Interest expense	0	8	0	11
Other, net	(2)	22	37	6
Total other expense (income)	(2)	30	37	17
Income (loss) before income taxes	792	(767)	1,734	76
Provision (benefit) for income taxes	261	(178)	539	20
Net Income (Loss)	531	(589)	1,195	56
Foreign currency translation adjustments, net of tax	(70)	(253)	(109)	(188)
Comprehensive income (loss)	$ 461	$ (842)	$ 1,086	$ (132)
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.06	$ (0.07)	$ 0.14	$ 0.01
Diluted (in dollars per share)	$ 0.06	$ (0.07)	$ 0.14	$ 0.01
Weighted average number of shares outstanding:
Basic (in shares)	8,327,178	8,279,108	8,315,214	8,426,181
Diluted (in shares)	8,366,904	8,279,108	8,329,969	8,432,897