Annual report pursuant to Section 13 and 15(d)

Note 3 - Summary of Significant Accounting Policies (Details Narrative)

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Note 3 - Summary of Significant Accounting Policies (Details Narrative) - USD ($)
12 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Cash $ 102,000  
Cash equivalents 0  
Inventory adjustments 90,000 $ 27,000
Standard and extended product warranty accrual 361,000 158,000
Impairment of long-lived assets held-for-use 0 0
Unrecognized tax benefits $ 0 $ 0
Weighted average number of shares outstanding, basic and diluted 4,364,271 2,539,427
Minimum    
Property, plant and equipment, useful life 3 years  
Maximum    
Property, plant and equipment, useful life 10 years