XML 49 R38.htm IDEA: XBRL DOCUMENT v3.20.2
Property and Equipment, Net (Tables)
3 Months Ended
Mar. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of estimated useful lives

Asset Type  Useful Life
Test equipment, research and development equipment  4-5 years
Computer hardware  2 years
Production fixtures  3 years
Leasehold improvements  5 years
Other  3-5 years
Schedule of property and equipment, net
(Amounts in US$'s)  March 31,
2020
   December 31,
2019
 
Shop machinery and equipment  $9,451,941   $8,100,667 
Computers and electronics   571,692    558,561 
Office furniture and fixtures   303,401    341,214 
Leasehold improvements   222,332    222,332 
    10,549,366    9,222,774 
Less - accumulated depreciation   (7,839,302)   (7,764,668)
   $2,710,064   $1,458,106