XML 46 R29.htm IDEA: XBRL DOCUMENT v3.20.2
Note 1 - Basis of Preparation of Financial Statements (Details Textual) - USD ($)
$ in Millions
 6 Months Ended
Mar. 31, 2020
Jun. 30, 2020
Casa Berardi [Member]    
Suspension Costs   $ 1.6
San Sebastian [Member]    
Suspension Costs   $ 1.0
Greens Creek [Member]    
Suspension Costs from Quarantining Employee Per Week $ 0.2