Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Revenue - Disaggregation of Revenue (Details)

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Note 7 - Revenue - Disaggregation of Revenue (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Total Net Sales $ 53,495 $ 29,692 $ 104,604 $ 56,784
Percent of net sales 100.00% 100.00% 100.00% 100.00%
Broadband Service Providers [Member]        
Percent of net sales 99.00% 97.00% 99.00% 98.00%
Legacy Customers [Member]        
Percent of net sales 1.00% 3.00% 1.00% 2.00%
UNITED STATES        
Total Net Sales $ 52,045 $ 27,744 $ 101,163 $ 53,776
Non-US [Member]        
Total Net Sales $ 1,450 $ 1,948 $ 3,441 $ 3,008