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DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reverse Stock Split (Details)
May 18, 2020
shares
Apr. 30, 2020
shares
Jan. 31, 2020
shares
DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES      
Conversion reverse stock split ratio 0.0833    
Common shares outstanding 1,367,326 1,523,185 1,268,991
Number of fractional share issued 0