v3.25.3
Note 9 - Share-based Compensation (Tables)
6 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Share-based Compensation Shares Authorized Available and Outstanding by Plan [Table Text Block]
  

As of September 30, 2025

 
  

Authorized

  

Available

  

Outstanding

 
             

2016 Plan

  1,300,000   92,756   801,381 

2024 Directors Plan

  800,000   454,126   — 

2014 Directors Plan

  —   —   12,000 

Total

  2,100,000   546,882   813,381 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]

Option Activity

 

Shares

  

Weighted
Average
Exercise

Price

  

Weighted

Average
Remaining
Contractual
Term (in
years)

  

Aggregate
Intrinsic
Value

 

Outstanding as of April 1, 2025

  322,000  $2.20   6.7  $— 

Granted

  475,000  $0.34         

Forfeited

  (50,000) $0.78         

Outstanding as of September 30, 2025

  747,000  $1.11   8.23  $10,325 

Exercisable as of September 30, 2025

  255,334  $2.57   5.53  $— 

Vested and expected to vest as of September 30, 2025

  640,687  $1.24   8.0  $8,539 
Schedule of Nonvested Share Activity [Table Text Block]

Nonvested Options

 

Shares

  

Weighted
Average
Grant-Date
Fair Value

 

Nonvested as of April 1, 2025

  100,000  $0.56 

Granted

  475,000  $0.19 

Vested

  (33,334) $0.97 

Forfeited

  (50,000) $0.15 

Nonvested as of September 30, 2025

  491,666  $0.20 
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Nonvested Restricted Stock Units

 

Shares

  

Weighted
Average
Grant Price

 

Nonvested restricted stock units as of April 1, 2025

  17,638  $2.76 

Granted

  115,625  $0.40 

Vested

  (66,406) $1.02 

Forfeited

  (476) $0.49 

Nonvested restricted stock units as of September 30, 2025

  66,381  $0.40