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Note 6 - Fair Value Measurements (Tables)
6 Months Ended
Sep. 30, 2023
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)

 

September 30, 2023:

                

Assets:

                

Cash equivalents

 $5,157  $5,157  $  $ 

Derivative liabilities:

                

Contingent consideration

 $3,470  $  $  $3,470 
  Total Carrying Value  Quoted Prices in Active Markets (Level 1)  Significant Other Observable Inputs (Level 2)  Significant Unobservable Inputs (Level 3) 

March 31, 2023:

                

Assets:

                

Cash equivalents

 $7,913  $7,913  $  $ 

Derivative liabilities:

                

Contingent consideration

 $1,270  $  $  $1,270 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Acquisition Contingent Consideration

 

Balance at March 31, 2022

 $1,200 

Change in fair value

  70 

Balance at March 31, 2023

  1,270 

Change in fair value

  2,200 

Balance at September 30, 2023

 $3,470