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FAIR VALUE MEASUREMENTS (Tables)
9 Months Ended 12 Months Ended
Oct. 31, 2019
Jan. 31, 2019
FAIR VALUE MEASUREMENTS    
Schedule of Fair Value of Warrant Liability Classified as Level 3 Liabilities

The table below presents the activity within Level 3 of the fair value hierarchy (in thousands):

 

 

 

 

    

Warrant Liability

Balance as of February 1, 2019

$

11

Change in fair value of warrants

 

(9)

Balance as of April 30, 2019

 

 2

Change in fair value of warrants

 

(2)

Balance as of July 31, 2019 and October 31, 2019

$

 —

 

The fair value of the warrant liability was classified as a Level 3 liability, as the Company uses unobservable inputs to value it. The table below presents the activity within Level 3 of the fair value hierarchy (in thousands):

 

 

 

 

    

Warrant Liability

Balance as of January 31, 2017

$

403

Change in fair value of warrants

 

(364)

Balance as of January 31, 2018

 

39

Change in fair value of warrants

 

(28)

Balance as of January 31, 2019

$

11