XML 41 R28.htm IDEA: XBRL DOCUMENT v3.10.0.1
Inventory (Details Textual) - USD ($)
Oct. 09, 2018
Sep. 30, 2018
Dec. 31, 2017
Inventory [Line Items]      
Parts, labor and overhead carried in work in process inventory   $ 1,050,740  
Work in process inventory   $ 1,238,331 $ 482,770
Subsequent Events [Member]      
Inventory [Line Items]      
WASP multi-mission capable tactical aerostat value $ 1,700,000