Note 10 - Acquisitions - Pro Forma Information (Details) - Calix, Inc. [Member] - USD ($) |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
Mar. 31, 2018 |
Mar. 31, 2017 |
|
| Net sales | $ 17,823,216 | $ 20,974,827 | $ 37,005,214 | $ 44,720,355 |
| Income (loss) from operations | (341,314) | 1,937,346 | 602,596 | 4,184,133 |
| Net income (loss) | $ (166,775) | $ 1,352,108 | $ 1,157,992 | $ 2,973,195 |
| Basic (in dollars per share) | $ (0.01) | $ 0.10 | $ 0.09 | $ 0.22 |
| Diluted (in dollars per share) | $ (0.01) | $ 0.10 | $ 0.09 | $ 0.22 |
| X | ||||||||||
- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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