XML 60 R48.htm IDEA: XBRL DOCUMENT v3.10.0.1
Inventory (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]      
Raw materials $ 7,247 $ 17,411  
Finished goods 179,673 414,480  
Total inventory 186,920 431,891  
Write-off of inventory $ 85,000 $ 42,000 $ 282,000