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Note 7 - Indebtedness (Tables)
3 Months Ended
Jun. 30, 2020
Notes Tables  
Convertible Debt [Table Text Block]
  

June 30, 2020

  

March 31, 2020

 
Principal outstanding $172,500  $172,500 
Unamortized debt discount  (27,050)  (28,205)
Unamortized debt issuance costs  (3,846)  (4,017)
Net carrying value $141,604  $140,278 
  

June 30, 2020

  

March 31, 2020

 

Amount allocated to conversion option

 $31,073  $31,073 

Less: allocated issuance costs and deferred taxes

  (8,338)  (8,338)

Equity component, net

 $22,735  $22,735 
Interest Expense on Convertible Debt [Table Text Block]
  

Three Months Ended June 30,

 
  

2020

  

2019

 

Coupon interest expense at 1.375%

 $593  $- 

Amortization of debt discounts and issuance costs

  1,326   - 

Total

 $1,919  $-