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Note 8 - Segment Reporting - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Revenue | $ 611 | $ 956 | $ 1,237 | $ 1,994
All Products [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 100.00% | 100.00% | 100.00% | 100.00%
Managed Services [Member] |  |  |  |
Revenue | $ 508 | $ 640 | $ 1,030 | $ 1,330
Managed Services [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 83.00% | 67.00% | 83.00% | 67.00%
Managed Services [Member] | Video Collaboration Service [Member] |  |  |  |
Revenue | $ 21 | $ 46 | $ 35 | $ 110
Managed Services [Member] | Video Collaboration Service [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 3.00% | 5.00% | 3.00% | 6.00%
Managed Services [Member] | Network Services [Member] |  |  |  |
Revenue | $ 484 | $ 583 | $ 987 | $ 1,201
Managed Services [Member] | Network Services [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 79.00% | 61.00% | 80.00% | 60.00%
Managed Services [Member] | Professional and Other Services [Member] |  |  |  |
Revenue | $ 3 | $ 11 | $ 8 | $ 19
Managed Services [Member] | Professional and Other Services [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 0.00% | 1.00% | 1.00% | 1.00%
Collaboration Products [Member] | Video Collaboration Service [Member] |  |  |  |
Revenue | $ 103 | $ 316 | $ 207 | $ 664
Collaboration Products [Member] | Video Collaboration Service [Member] | Product Concentration Risk [Member] | Revenue from Contract with Customer Benchmark [Member] |  |  |  |
Concentration Risk, Percentage | 17.00% | 33.00% | 17.00% | 33.00%

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