Annual report pursuant to Section 13 and 15(d)

ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)

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ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Total net sales $ 24,046,354 $ 14,418,726
DC power systems [Member]    
Total net sales 22,528,268 13,798,841
Accessories [Member]    
Total net sales $ 1,518,086 $ 619,885