Quarterly report pursuant to Section 13 or 15(d)

A. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details-Product warranties)

v3.5.0.2
A. BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES (Details-Product warranties) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Product warranties    
Beginning balance $ 66,555 $ 44,288
Warranty claims incurred (30,047) (52,833)
Provision charged to expense 50,700 75,100
Ending balance $ 87,208 $ 66,555