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Note 15 - Share-based Payments (Details Textual) - USD ($) $ in Thousands				1 Months Ended		3 Months Ended		9 Months Ended
	Jan. 16, 2023	Nov. 09, 2022	Oct. 08, 2010	Nov. 30, 2020	Sep. 30, 2015	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Nov. 22, 2006
Common Stock, Shares, Outstanding (in shares)						10,985,238		10,985,238		10,903,405
Share-Based Payment Arrangement, Expense						$ 1,808	$ 2,308	$ 5,383	$ 6,606
Capitalized Internal Use Software [Member]
Share-Based Payment Arrangement, Amount Capitalized						75	66	245	250
Equity Compensation Plan 2006 [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)			1,725,000	4,000,000	2,475,000						1,250,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)			475,000	1,530,000	750,000
Share-Based Payment Arrangement, Expense						1,429	1,819	$ 4,104	4,999
Equity Compensation Plan 2006 [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)								4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)								7 years
Equity Compensation Plan 2006 [Member] | Automatic Formula Grants of Nonqualified Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)								1 year
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)								5 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount						5,600		$ 5,600
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								2 years 10 months 24 days
The 2022 Wavelo Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		7 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount						3,400		$ 3,400
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								2 years
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		25,000,000
Common Stock, Shares, Outstanding (in shares)		100,000,000
Share-Based Payment Arrangement, Expense						422	505	$ 1,380	1,561
The 2022 Wavelo Equity Compensation Plan [Member] | Share-Based Payment Arrangement, Tranche One [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage		25.00%
The 2022 Ting Equity Compensation Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)	10
Common Stock, Shares, Outstanding (in shares)	100
Share-Based Payment Arrangement, Expense						32	50	144	296
The 2022 Ting Equity Compensation Plan [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)	4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)	7 years
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount						400		$ 400
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								1 year 10 months 24 days
Share-Based Payment Arrangement, Expense						$ 1,800	$ 2,300	$ 5,400	$ 6,600

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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