XML 56 R44.htm IDEA: XBRL DOCUMENT v3.21.2
INTANGIBLE ASSETS (Details) - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Jul. 31, 2007
BCH License [Member]      
Intangible assets      
Useful life 15 years    
Intangible assets - gross $ 200 $ 200 $ 75
Patent licensing fee      
Intangible assets      
Useful life 15 years    
Intangible assets - gross $ 200 200  
Accumulated amortization $ (200) (191)  
Intangible assets, net   $ 9