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Note 15 - Stock Option Plans - Stock-based Compensation Allocation to Operating Expenses (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Allocated share based compensation expense | $ 5,779 | $ 4,592 | $ 3,718 |
The 2022 Wavelo Equity Compensation Plan [Member] |  |  |  |
Allocated share based compensation expense |  | 1,820 | 0 | $ 0
Network Expenses [Member] |  |  |  |
Allocated share based compensation expense | 399 | 531 | 472 |
Network Expenses [Member] | The 2022 Wavelo Equity Compensation Plan [Member] |  |  |  |
Allocated share based compensation expense |  | 104 | 0 | 0
Sales and Marketing Expense [Member] |  |  |  |
Allocated share based compensation expense | 1,498 | 1,941 | 1,678 |
Sales and Marketing Expense [Member] | The 2022 Wavelo Equity Compensation Plan [Member] |  |  |  |
Allocated share based compensation expense |  | 508 | 0 | 0
Technical Operations and Development [Member] |  |  |  |
Allocated share based compensation expense | 545 | 824 | 756 |
Technical Operations and Development [Member] | The 2022 Wavelo Equity Compensation Plan [Member] |  |  |  |
Allocated share based compensation expense |  | 407 | 0 | 0
General and Administrative Expense [Member] |  |  |  |
Allocated share based compensation expense | $ 3,337 | 1,296 | 812 |
General and Administrative Expense [Member] | The 2022 Wavelo Equity Compensation Plan [Member] |  |  |  |
Allocated share based compensation expense |  | $ 801 | $ 0 | $ 0

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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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