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Note 7 - Fair Value Measurements (Tables)
3 Months Ended
Jun. 30, 2022
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
   

Total Carrying Value

   

Quoted Prices in Active Markets (Level 1)

   

Significant Other Observable Inputs (Level 2)

   

Significant Unobservable Inputs (Level 3)

 

June 30, 2022:

                               

Assets:

                               

Cash equivalents

  $ 12,893     $ 12,893     $     $  

Derivative liabilities:

                               

Contingent consideration

  $ 1,370     $     $     $ 1,370  
    Total Carrying Value     Quoted Prices in Active Markets (Level 1)     Significant Other Observable Inputs (Level 2)     Significant Unobservable Inputs (Level 3)  

March 31, 2022:

                               

Assets:

                               

Cash equivalents

  $ 17,641     $ 17,641     $     $  

Derivative liabilities:

                               

Contingent consideration

  $ 1,200     $     $     $ 1,200  
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
   

Acquisition Contingent Consideration

 

Balance at March 31, 2021

  $ 7,050  

Change in fair value

    (5,850 )

Balance at March 31, 2022

    1,200  

Change in fair value

    170  

Balance at June 30, 2022

  $ 1,370