Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details)

v3.19.3
Organization and Summary of Significant Accounting Policies (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Total net sales $ 6,939,318 $ 5,061,158 $ 23,922,651 $ 15,748,845
DC power systems [Member]        
Total net sales 6,713,525 4,958,670 23,146,223 15,288,835
Engineering & Tech Support Services [Member]        
Total net sales 63,011 39,445 232,998 69,667
Accessories [Member]        
Total net sales 162,782 63,043 543,430 390,343
Telecom [Member]        
Total net sales 6,753,226 4,246,099 22,497,099 14,054,886
Government/Military [Member]        
Total net sales 39,822 659,912 588,482 1,257,292
Marine [Member]        
Total net sales 32,016 60,642 87,010
Other (backup DC power to various industries) [Member]        
Total net sales $ 146,270 $ 123,131 $ 776,428 $ 349,657