Note 15 - Stock Option Plans - Summary of Exercise Prices, Weighted Average Remaining Contractual Life and Intrinsic Values of Outstanding Options (Details) $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2025 USD ($) $ / shares shares
Equity Compensation Plan 2006 [Member]
Number outstanding (in shares) \| shares	961,376
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 39.65
Weighted average remaining contractual life, options outstanding (Year)	4 years
Aggregate intrinsic value, options outstanding \| $	$ 810
Number exercisable (in shares) \| shares	564,616
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 51.47
Weighted average remaining contractual life, options exercisable (Year)	2 years 9 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 171
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 01 [Member]
Exercise price - lower (in dollars per share)	$ 16.47
Exercise price - higher (in dollars per share)	$ 19.93
Number outstanding (in shares) \| shares	146,937
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 18.96
Weighted average remaining contractual life, options outstanding (Year)	6 years 2 months 12 days
Aggregate intrinsic value, options outstanding \| $	$ 508
Number exercisable (in shares) \| shares	23,875
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 19.27
Weighted average remaining contractual life, options exercisable (Year)	4 years 7 months 6 days
Aggregate intrinsic value, options exercisable \| $	$ 75
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 02 [Member]
Exercise price - lower (in dollars per share)	$ 20.25
Exercise price - higher (in dollars per share)	$ 28.37
Number outstanding (in shares) \| shares	374,111
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 22.71
Weighted average remaining contractual life, options outstanding (Year)	5 years 3 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 302
Number exercisable (in shares) \| shares	131,706
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 23.34
Weighted average remaining contractual life, options exercisable (Year)	5 years 1 month 6 days
Aggregate intrinsic value, options exercisable \| $	$ 96
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 03 [Member]
Exercise price - lower (in dollars per share)	$ 30.7
Exercise price - higher (in dollars per share)	$ 30.74
Number outstanding (in shares) \| shares	5,000
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 30.74
Weighted average remaining contractual life, options outstanding (Year)	3 years 10 months 24 days
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	3,750
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 30.74
Weighted average remaining contractual life, options exercisable (Year)	3 years 10 months 24 days
Aggregate intrinsic value, options exercisable \| $	$ 0
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 04 [Member]
Exercise price - lower (in dollars per share)	$ 40.04
Exercise price - higher (in dollars per share)	$ 48
Number outstanding (in shares) \| shares	127,914
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 42
Weighted average remaining contractual life, options outstanding (Year)	3 years 6 months
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	98,371
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 42.02
Weighted average remaining contractual life, options exercisable (Year)	3 years 6 months
Aggregate intrinsic value, options exercisable \| $	$ 0
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 05 [Member]
Exercise price - lower (in dollars per share)	$ 51.82
Exercise price - higher (in dollars per share)	$ 59.98
Number outstanding (in shares) \| shares	13,350
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 55.53
Weighted average remaining contractual life, options outstanding (Year)	1 year
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	13,350
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 55.53
Weighted average remaining contractual life, options exercisable (Year)	1 year
Aggregate intrinsic value, options exercisable \| $	$ 0
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 06 [Member]
Exercise price - lower (in dollars per share)	$ 60.01
Exercise price - higher (in dollars per share)	$ 68.41
Number outstanding (in shares) \| shares	143,891
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 60.93
Weighted average remaining contractual life, options outstanding (Year)	1 year
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	143,891
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 60.93
Weighted average remaining contractual life, options exercisable (Year)	1 year
Aggregate intrinsic value, options exercisable \| $	$ 0
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 07 [Member]
Exercise price - lower (in dollars per share)	$ 70.13
Exercise price - higher (in dollars per share)	$ 79.51
Number outstanding (in shares) \| shares	141,173
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 78.46
Weighted average remaining contractual life, options outstanding (Year)	2 years 1 month 6 days
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	140,673
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 78.48
Weighted average remaining contractual life, options exercisable (Year)	2 years 1 month 6 days
Aggregate intrinsic value, options exercisable \| $	$ 0
Equity Compensation Plan 2006 [Member] \| Exercise Price Range 08 [Member]
Exercise price - lower (in dollars per share)	$ 80.61
Exercise price - higher (in dollars per share)	$ 82.07
Number outstanding (in shares) \| shares	9,000
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 80.61
Weighted average remaining contractual life, options outstanding (Year)	2 years 9 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	9,000
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 80.61
Weighted average remaining contractual life, options exercisable (Year)	2 years 9 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 0
The 2022 Wavelo Equity Compensation Plan [Member]
Number outstanding (in shares) \| shares	15,305,714
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 1.34
Weighted average remaining contractual life, options outstanding (Year)	3 years 9 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 7,200
Number exercisable (in shares) \| shares	13,442,199
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 1.29
Weighted average remaining contractual life, options exercisable (Year)	3 years 9 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 7,037
The 2022 Wavelo Equity Compensation Plan [Member] \| Exercise Price Range 01 [Member]
Exercise price - lower (in dollars per share)	$ 0
Exercise price - higher (in dollars per share)	$ 1.81
Number outstanding (in shares) \| shares	15,305,714
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 1.34
Weighted average remaining contractual life, options outstanding (Year)	3 years 9 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 7,200
Number exercisable (in shares) \| shares	13,442,199
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 1.29
Weighted average remaining contractual life, options exercisable (Year)	3 years 9 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 7,037
The 2022 Ting Equity Compensation Plan [Member]
Number outstanding (in shares) \| shares	4,646,012
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 6
Weighted average remaining contractual life, options outstanding (Year)	4 years 3 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	4,431,538
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 6
Weighted average remaining contractual life, options exercisable (Year)	4 years 3 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 0
The 2022 Ting Equity Compensation Plan [Member] \| Exercise Price Range 01 [Member]
Exercise price - lower (in dollars per share)	$ 0
Exercise price - higher (in dollars per share)	$ 6
Number outstanding (in shares) \| shares	4,646,012
Weighted average exercise price per share, options outstanding (in dollars per share)	$ 6
Weighted average remaining contractual life, options outstanding (Year)	4 years 3 months 18 days
Aggregate intrinsic value, options outstanding \| $	$ 0
Number exercisable (in shares) \| shares	4,431,538
Weighted average exercise price per share, options exercisable (in dollars per share)	$ 6
Weighted average remaining contractual life, options exercisable (Year)	4 years 3 months 18 days
Aggregate intrinsic value, options exercisable \| $	$ 0

Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The number of shares reserved for issuance pertaining to the outstanding exercisable stock options as of the balance sheet date in the customized range of exercise prices for which the market and performance vesting condition has been satisfied.

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The number of shares reserved for issuance pertaining to the outstanding stock options as of the balance sheet date for all option plans in the customized range of exercise prices.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Weighted average remaining contractual term of outstanding stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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