XML 31 R21.htm IDEA: XBRL DOCUMENT v3.19.1
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
3 Months Ended
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Deferred revenue $ 0 $ 0  
Disputed liabilities   0  
Cash equivalents 7,612 151,058  
Accounts receivable 245,846 280,142  
Bad debts 3,820  
Inventories 198,475 $ 160,858
Federal Deposit Insurance Corporation (FDIC), amount $ 250,000    
Vehicles [Member]      
Estimated useful lives 5 years    
Office Furniture and Equipment [Member] | Minimum [Member]      
Estimated useful lives 3 years    
Office Furniture and Equipment [Member] | Maximum [Member]      
Estimated useful lives 15 years    
Equipment [Member]      
Estimated useful lives 3 years