Note 4 - Business Combinations - Consideration (Details) - Evertel Technologies, LLC [Member] - USD ($) $ in Thousands		3 Months Ended
	Oct. 04, 2023	Dec. 31, 2023	Dec. 31, 2022
Cash paid	$ 923
Common stock issued	1,924
Contingent consideration	890	$ 890	$ (0)
Acquisition holdback liability	230	230	(0)
Common stock to be issued	527	$ 527	$ (0)
Business Combination, Consideration Transferred and to be Transferred	$ 4,494