XML 52 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 7 - Stock-based Compensation - Summary of Unvested Options (Details)
 9 Months Ended
Dec. 31, 2017
$ / shares
shares
Unvested (in shares) | shares 373,766
Unvested (in dollars per share) | $ / shares $ 22.49
Stock options granted (in shares) | shares 95,605
Stock options granted (in dollars per share) | $ / shares $ 39
Stock options forfeited (in shares) | shares (52,833)
Stock options forfeited (in dollars per share) | $ / shares $ 27.42
Stock options vested (in shares) | shares (80,340)
Stock options vested (in dollars per share) | $ / shares $ 20.85
Unvested (in shares) | shares 336,198
Unvested (in dollars per share) | $ / shares $ 28.47