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Note 16 - 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	Jun. 30, 2024	Nov. 30, 2020	Sep. 30, 2015	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024	Nov. 22, 2006
Common Stock, Shares, Outstanding (in shares)							11,089,663		11,089,663		11,014,655
Capitalized Internal Use Software [Member]
Share-Based Payment Arrangement, Amount Capitalized							$ 55	$ 75	$ 171	$ 245
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense							1,400	1,800	4,300	5,400
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							985	1,429	$ 3,035	4,104
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
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount							3,500		$ 3,500
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)									2 years 8 months 12 days
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
The 2022 Wavelo Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized (in shares)				25,000,000
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
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		20,000,000
Common Stock, Shares, Outstanding (in shares)				120,000,000
Share-Based Payment Arrangement, Expense							427	422	$ 1,322	1,380
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 Wavelo Equity Compensation Plan [Member] | Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount							2,600		$ 2,600
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)									2 years 1 month 6 days
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							30	$ 32	$ 91	$ 144
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)									9 months 18 days

X

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

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