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Note 14 - Share-based Payments (Details Textual) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 16, 2023 | Nov. 09, 2022 | Oct. 08, 2010 | Nov. 30, 2020 | Sep. 30, 2015 | Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Nov. 22, 2006
Common Stock, Shares, Outstanding (in shares) |  |  |  |  |  | 10,831,435 |  |  | 10,817,110 |
Share-Based Payment Arrangement, Expense |  |  |  |  |  | $ 2,246 | $ 1,391 |  |  |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  |  |  | 2,200 | 1,400 |  |  |
Equity Compensation Plan 2006 [Member] |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares) |  |  | 1,725,000 | 4,000,000.0 | 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 |  |  |  |  |  | 1,504 | 1,391 |  |  |
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 |  |  |  |  |  | $ 7,100 |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  |  |  | 2 years 4 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 |  |  |  |  |  |  |  |
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, Expense |  |  |  |  |  | $ 546 | 0 |  |  |
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 |  |  |  |  |  | $ 5,700 |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  |  |  | 2 years 10 months 24 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 |  |  |  |  |  | $ 196 | $ 0 |  |  |
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 |  |  |  |  |  | $ 500 |  |  |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) |  |  |  |  |  | 2 years 10 months 24 days |  |  |  |
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) | 10 years |  |  |  |  |  |  |  |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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