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(5) Warranty Reserve: Schedule of Product Warranty Liability (Details) - USD ($)
12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Details    
Beginning warranty reserve balance $ 153,185 $ 157,753
Warranty repairs (143,934) (145,698)
Warranties issued 141,009 145,267
Changes in estimated warranty costs 2,345 (4,137)
Warranty Reserve Balance $ 152,605 $ 153,185