Note 10 - Segment Information - Operating Information by Geographic Area (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Net sales		$ 7,560	$ 9,477	$ 24,369	$ 30,027
Cost of sales		1,954	2,490	6,139	7,880
Gross profit		5,606	6,987	18,230	22,147
Commissions expense		2,710	3,876	9,674	12,376
Segment income (loss) from operations		(277)	(495)	(1,394)	(1,173)
Other income, net		112	206	597	1,019
Loss before income taxes		(165)	(289)	(797)	(154)
Operating Segments [Member]
Net sales		7,560	9,477	24,369	30,027
Cost of sales		1,954	2,490	6,139	7,880
Gross profit		5,606	6,987	18,230	22,147
Commissions expense	[1]	2,710	3,876	9,674	12,376
Employee-related costs		1,061	1,204	3,299	3,668
Facility costs		232	350	943	1,006
Other segment items2	[2]	450	467	1,351	1,573
Segment income (loss) from operations		1,153	1,090	2,963	3,524
Other income, net		112	206	597	1,019
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Segment income (loss) from operations		(1,430)	(1,585)	(4,357)	(4,697)
Primary Reporting Segment [Member] | Operating Segments [Member]
Net sales		7,342	9,135	23,558	29,034
Cost of sales		1,891	2,392	5,904	7,564
Gross profit		5,451	6,743	17,654	21,470
Commissions expense	[1]	2,683	3,832	9,592	12,240
Employee-related costs		856	966	2,618	2,951
Facility costs		193	311	827	890
Other segment items2	[2]	386	398	1,160	1,335
Segment income (loss) from operations		1,333	1,236	3,457	4,054
China Segment [Member] | Operating Segments [Member]
Net sales		136	237	573	690
Cost of sales		26	50	119	152
Gross profit		110	187	454	538
Commissions expense	[1]	0	0	0	0
Employee-related costs		198	224	644	677
Facility costs		34	36	105	107
Other segment items2	[2]	54	58	161	203
Segment income (loss) from operations		(176)	(131)	(456)	(449)
Russia and Kazakhstan Segment [Member] | Operating Segments [Member]
Net sales		82	105	238	303
Cost of sales		37	48	116	164
Gross profit		45	57	122	139
Commissions expense	[1]	27	44	82	136
Employee-related costs		7	14	37	40
Facility costs		5	3	11	9
Other segment items2	[2]	10	11	30	35
Segment income (loss) from operations		$ (4)	$ (15)	$ (38)	$ (81)

[1] Our China subsidiary maintains an e-commerce retail platform and does not pay commissions.

[2] Other segment items include credit card fees and assessments, marketing-related costs, professional fees and other business expenses.