Quarterly report [Sections 13 or 15(d)]

Note 8 - Revenue - Disaggregation of Revenue (Details)

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Note 8 - Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Total Net Sales $ 47,168 $ 36,910 $ 82,644 $ 71,140
Total Net Sales, percentage 100.00% 100.00% 100.00% 100.00%
Broadband Service Providers [Member]        
Total Net Sales, percentage 94.00% 93.00% 94.00% 93.00%
Legacy Customers [Member]        
Total Net Sales, percentage 6.00% 7.00% 6.00% 7.00%
UNITED STATES        
Total Net Sales $ 39,844 $ 26,963 $ 69,176 $ 54,524
Non-US [Member]        
Total Net Sales $ 7,324 $ 9,947 $ 13,468 $ 16,616