Note 4 - Business Combinations - Assets Acquired and Liabilities assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Oct. 04, 2023	Sep. 30, 2023
Assets acquired
Goodwill	$ 13,151		$ 10,282
Evertel Technologies, LLC [Member]
Assets acquired
Accounts receivable		$ 142
Prepaid expenses		27
Intangible assets		2,550
Goodwill		2,772
Total Assets		5,491
Liabilities assumed
Accrued commissions		10
Deferred revenue		470
Deferred tax liability		517
Total liabilities		997
Net assets acquired		$ 4,494