Note 11 - Segment, Customer Concentration and Geographical Information - Schedule of Expenses (Details) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues		$ 4,420	$ 5,140		$ 9,041	$ 10,938
Adjusted cost of revenues¹	[1]	1,171	1,592		2,428	3,572
Adjusted selling and marketing²		1,402	2,044		2,811	4,337
Adjusted research and development²	[2]	2,548	3,386		5,191	7,093
Adjusted general and administrative²	[2]	1,964	2,104		4,050	4,192
Adjusted operating loss		(2,665)	(3,986)		(5,439)	(8,256)
Other segment expenses³	[3]	(78)	(310)		(79)	(448)
Stock-based compensation expense		(1,096)	(1,138)		(2,183)	(2,272)
Depreciation		(73)	(95)		(146)	(194)
Amortization		(1,276)	(1,450)		(2,552)	(3,266)
Goodwill impairment		(11,052)	0	$ (24,000)	(11,052)	(23,989)
Proceeds from sale of ViewSpot, net		1,287	(0)		1,287	(0)
Total other (expenses) income, net		(109)	50		(75)	528
Loss before provision for income taxes		(15,062)	(6,929)		(20,239)	(37,897)
Provision for income tax expense		0	0		1	39
Net loss		$ (15,062)	$ (6,929)		$ (20,240)	$ (37,936)

[1] Adjusted amounts exclude depreciation expense.

[2] Adjusted amounts exclude stock-based compensation expense and other adjustments as further described in footnote 3 to this table.

[3] Other segment expenses include personnel severance and reorganization activities and other corporate non-recurring expenditures.