XML 37 R27.htm IDEA: XBRL DOCUMENT v3.19.1
Note 6 - Restricted Cash (Tables)
9 Months Ended
Apr. 30, 2019
Notes Tables  
Restrictions on Cash and Cash Equivalents [Table Text Block]
   
April 30, 2019
   
July 31, 2018
 
Restricted cash, beginning of period
 
$
1,789,899
    $
1,706,028
 
Reclamation deposit received from asset acquisition
 
 
-
     
73,973
 
Refund of reclamation deposit
 
 
-
     
(819
)
Interest received
 
 
22,944
     
10,717
 
Restricted cash, end of period
 
$
1,812,843
    $
1,789,899
 
Schedule of Cash and Cash Equivalents and Restricted Cash [Table Text Block]
   
April 30, 2019
   
April 30, 2018
 
Cash and cash equivalents
 
$
6,093,098
    $
11,223,448
 
Restricted cash
 
 
1,812,843
     
1,779,182
 
Total cash, cash equivalents and restricted cash
 
$
7,905,941
    $
13,002,630