RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Feb. 01, 2019	Jan. 31, 2019
Recently issued accounting pronouncements
Right-of-use assets	$ 2,408		$ 290
Lease liabilities	636
lease liabilities	$ 2,210
Accounting Standards Update 2016-02
Recently issued accounting pronouncements
Right-of-use assets		$ 1,300
Lease liabilities		$ 1,300