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Note 16 - Stock Option Plans (Details Textual) - USD ($) $ in Thousands					1 Months Ended		9 Months Ended	12 Months Ended
	Jan. 16, 2023	Jan. 06, 2023	Nov. 09, 2022	Oct. 08, 2010	Nov. 30, 2020	Sep. 30, 2015	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 01, 2023	Nov. 22, 2006
Proceeds from Stock Options Exercised								$ 0	$ 1,096	$ 4,818
Common Stock, Shares, Outstanding (in shares)								10,903,405	10,817,110
Capitalized Internal Use Software [Member]
Share-Based Payment Arrangement, Amount Capitalized								$ 337	$ (0)	(0)
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Expense								8,100	7,600	4,600
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 Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value								0	800	6,400
Proceeds from Stock Options Exercised									1,100	4,800
Share-Based Payment Arrangement, Expense								6,033	5,779	$ 4,592
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								$ 5,500
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)								2 years 9 months 18 days
Share-Based Payment Arrangement, Expense								$ 6,000	5,800	$ 4,600
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, 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, Period for Recognition (Year)								2 years 2 months 12 days
Share-Based Payment Arrangement, Expense								$ 1,755	1,820	$ 0
Common Stock, Capital Shares Reserved for Future Issuance (in shares)			20,000,000
Common Stock, Shares, Outstanding (in shares)			100,000,000
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount								4,500
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]
Share-Based Payment Arrangement, Expense								$ 346	$ 0	$ 0
Common Stock, Capital Shares Reserved for Future Issuance (in shares)	10
Common Stock, Shares, Outstanding (in shares)	100
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 Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount											$ 600
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)							2 years 6 months
The 2022 Ting Equity Compensation Plan [Member] | Share-Based Payment Arrangement, Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		7 years

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