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Note 9 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Dec. 31, 2022
Extended Product Warranty Accrual | $ 1,121 | $ 682
Accrued Expenses and Other Current Liabilities [Member] |  |
Extended Product Warranty Accrual, Current | 193 | 119
Other Noncurrent Liabilities [Member] |  |
Extended Product Warranty Accrual, Noncurrent | $ 928 | $ 563
Certain Communications Systems Products [Member] | Maximum [Member] |  |
Extended Product Warranty, Term | 8 years |

X
- Definition Term of the extended product warranty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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X
- Definition Amount as of the balance sheet date of the aggregate extended product warranty liability. Does not include the ending balance for the standard product warranty liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-8 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Subparagraph (c)(5) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482425/460-10-50-8 + Details
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