Quarterly report pursuant to Section 13 or 15(d)

Note 10 - Acquisitions - Summary of Estimated Fair Values of Acquired Assets (Details)

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Note 10 - Acquisitions - Summary of Estimated Fair Values of Acquired Assets (Details) - USD ($)
Mar. 31, 2018
Feb. 20, 2018
Sep. 30, 2017
Goodwill $ 4,708,511   $ 2,570,511
Calix, Inc. [Member]      
Inventories   $ 2,781,000  
Property, plant and equipment   58,000  
Goodwill   2,138,000  
Total Assets   10,350,000  
Calix, Inc. [Member] | Trademarks [Member]      
Finite-lived intangible assets   563,000  
Calix, Inc. [Member] | Customer Relationships [Member]      
Finite-lived intangible assets   3,742,000  
Calix, Inc. [Member] | Certification Marks [Member]      
Finite-lived intangible assets   $ 1,068,000