XML 91 R57.htm IDEA: XBRL DOCUMENT v3.20.1
COMMON STOCK (Details) - USD ($)
12 Months Ended
Jan. 31, 2020
Jan. 31, 2019
Stockholders' Equity Note [Abstract]    
Treasury Stock, Shares, Acquired 349,861 305,473
Treasury Stock, Value, Acquired, Cost Method (in Dollars)   $ 21,855,000