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Note 6 - Fair Value Measurements - Fair Value Measurement of Acquired Intangible Assets (Details) - Evertel Technologies, LLC [Member] $ in Thousands	3 Months Ended
	Dec. 31, 2023 USD ($)
Intangible assets from Evertel acquisition	$ 2,550
Intangible assets, gain (loss)	0
Goodwill from Evertel acquisition	2,772
Gain (loss) in goodwill	0
Fair Value, Inputs, Level 1 [Member]
Intangible assets from Evertel acquisition	0
Goodwill from Evertel acquisition	0
Fair Value, Inputs, Level 2 [Member]
Intangible assets from Evertel acquisition	0
Goodwill from Evertel acquisition	0
Fair Value, Inputs, Level 3 [Member]
Intangible assets from Evertel acquisition	2,550
Goodwill from Evertel acquisition	$ 2,772

X

- Definition

The amount of gain (loss) in the fair value of finite-lived intangible assets.

+ References

No definition available.

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X

- Definition

The amount of gain (loss) in the fair value of goodwill.

+ References

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X

- Definition

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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X

- Definition

Fair value portion of asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

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