XML 48 R6.htm IDEA: XBRL DOCUMENT v3.20.1
CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)
Dec. 31, 2019
Aug. 03, 2016
7% Convertible Debentures    
Disclosure of detailed information about borrowings [line items]    
Borrowings, interest rate 7.00% 7.00%