XML 34 R24.htm IDEA: XBRL DOCUMENT v3.20.2
Note 4 - Fair Value Measurements (Tables)
6 Months Ended
Jul. 31, 2020
Notes Tables  
Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]
   

Fair value measurement at reporting date using

 
   

Quoted Prices
in Active
Markets for
Identical Assets
(Level 1)

   

Significant
Other
Observable
Inputs
(Level 2)

   

Significant
Unobservable
Inputs
(Level 3)

 
   

(in thousands)

 

As of July 31, 2020

                       

Money market mutual funds

  $ 113,363                  

Certificates of deposit

  $ 8,882                  

Liability related to the interest rate swap

          $ (451

)

       
                         

As of January 31, 2020

                       

Money market mutual funds

  $ 107,319                  

Certificates of deposit

  $ 14,917                  

Liability related to the interest rate swap

          $ (232

)

       
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
 

Liability

 
     

Fair Value

 
 

Balance Sheet
Location

 

July 31,
2020

   

January 31,
2020

 

Derivative instrument:

                 

Interest rate swap

Other liabilities

  $ (451

)

  $ (232

)

Total

  $ (451

)

  $ (232

)