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Note 4 - Business Combinations (Details Textual) - USD ($)		3 Months Ended				9 Months Ended		12 Months Ended
	Oct. 04, 2023	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024
Share Price			$ 2.12
Stock Issued During Period, Value, Acquisitions				$ 1,924,000
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock			$ 158,000	527,000
Payment for Contingent Consideration Liability, Financing Activities						$ 219,000	$ (0)
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability						(16,000)	$ 0
Contingent Consideration Liability [Member]
Stock Issued During Period, Value, Acquisitions		$ 0	656,000
Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Acquisitions				1,924,000
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock			158,000	527,000
Additional Paid-in Capital [Member] | Contingent Consideration Liability [Member]
Stock Issued During Period, Value, Acquisitions			656,000
Evertel Technologies, LLC [Member]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares)	986,486
Share Price	$ 1.95
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock		158,000
Business Combination, Contingent Consideration, Liability	$ 890,000	0				0		$ 0
Business Combination, Consideration Transferred, Working Capital Adjustment	$ 15,000		15,000
Business Combination, Acquisition Related Costs			62,000	$ 12,000	$ 39,000			$ 113,000
Finite-Lived Intangible Asset, Useful Life	6 years 9 months 18 days
Business Combination, Contingent Consideration, Liability Settled						874,000
Payment for Contingent Consideration Liability, Financing Activities						219,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability						16,000
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual		291,000				706,000
Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual		$ 72,000				$ 504,000
Evertel Technologies, LLC [Member] | Holdback Liability [Member]
Business Combination, Contingent Consideration, Liability	$ 230,000
Evertel Technologies, LLC [Member] | Contingent Consideration Liability [Member]
Stock Issued During Period, Shares, Acquisitions						236,343
Evertel Technologies, LLC [Member] | Additional Paid-in Capital [Member]
Stock Issued During Period, Value, Acquisitions	1,924
Increase in Additional Paid-in Capital, Obligation to Issue Common Stock	$ 527,000		$ 158,000
Evertel Technologies, LLC [Member] | Additional Paid-in Capital [Member] | Contingent Consideration Liability [Member]
Stock Issued During Period, Value, Acquisitions						$ 656,000

X

- Definition

Amount of working capital adjustment on consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

+ References

No definition available.

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X

- Definition

Amount of liability settled recognized arising from contingent consideration in a business combination.

+ References

No definition available.

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- Definition

The amount of increase in additional paid-in capital from the obligation to issue common stock.

+ References

No definition available.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

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-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
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-Paragraph 1
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X

- Definition

This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

+ References

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-Paragraph 28
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- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

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X

- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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X

- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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X

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

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Value of stock issued pursuant to acquisitions during the period.

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