XML 48 R37.htm IDEA: XBRL DOCUMENT v3.19.2
Concentration of Credit Risk and Major Customers (Details Narrative) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Dec. 31, 2018
Allowance for doubtful accounts $ 90,000   $ 70,000
No International Distributor [Member] | Revenue [Member]      
Percentage of concentration risk 10.00%    
No International Distributor [Member] | Revenue [Member]      
Percentage of concentration risk   10.00%  
No Customer Receivable [Member] | Accounts Receivable [Member]      
Percentage of concentration risk 10.00% 10.00%