Note 9 - Information About Geographic Areas and Operating Segments - Profit and Loss Information (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended			12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Revenue	$ 10,646	$ 10,420	$ 14,718	$ 31,289	$ 36,073	$ 43,994	$ 59,360
Cost of revenue	9,318	8,530		27,176	30,552
Gross profit	1,328	1,890	2,709	4,113	5,521	7,523	10,173
Operating expenses	2,194	2,028		7,150	7,173
Other (loss) income, net	(29)	2		1,575	(31)
Income taxes	0	0		0	0
Net loss	(895)	(136)	(1,030)	(1,462)	(1,683)	(7,744)	(9,104)
Partner Solutions [Member]
Revenue	9,638	9,145		28,393	33,160
Cost of revenue	8,491	7,402		24,528	27,502
Gross profit	1,147	1,743		3,865	5,658
Edge to Cloud [Member]
Revenue	1,008	1,275	$ 2,162	2,896	2,913	$ 6,653	$ 8,732
Cost of revenue	827	1,128		2,648	3,050
Gross profit	$ 181	$ 147		$ 248	$ (137)