Note 6 - Fair Value Measurements - Holdback Liability Measured at Fair Value on a Non-recurring Basis (Details) - Fair Value, Nonrecurring [Member] - Evertel Technologies, LLC [Member] $ in Thousands	3 Months Ended
Dec. 31, 2023 USD ($)
Contingent Consideration Liability [Member]
Balance	$ 890
Accretion	46
Balance	936
Holdback Liability [Member]
Balance	230
Accretion	5
Balance	$ 235

Fair value of obligations not classified as financial liabilities. Includes, but is not limited to, accounts payable and accrued liabilities, commitments, obligations, and other liabilities.

No definition available.

Name:	us-gaap_NonfinancialLiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant