Note 2 - Acquisitions and Dispositions - Pro Forma Effects (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
Mar. 31, 2014 |
|
| Infitrak Acquisition [Member] | |||
| Diluted (in dollars per share) | $ 3.05 | $ 2.72 | |
| Revenues | $ 86,499 | $ 74,379 | |
| Net income | $ 11,471 | $ 9,944 | |
| Basic (in dollars per share) | $ 3.18 | $ 2.82 | |
| North Bay Acquisition [Member] | |||
| Diluted (in dollars per share) | $ 3.05 | $ 2.79 | |
| Revenues | $ 86,053 | $ 75,649 | |
| Net income | $ 11,463 | $ 10,182 | |
| Basic (in dollars per share) | $ 3.18 | $ 2.89 | |
| PCD Acquisition [Member] | |||
| Diluted (in dollars per share) | $ 2.65 | $ 2.63 | |
| Revenues | $ 73,068 | $ 56,541 | |
| Net income | $ 9,673 | $ 9,512 | |
| Basic (in dollars per share) | $ 2.75 | $ 2.76 | |
| BGI [Member] | |||
| Diluted (in dollars per share) | $ 2.65 | $ 3.09 | |
| Revenues | $ 71,648 | $ 60,388 | |
| Net income | $ 9,661 | $ 11,141 | |
| Basic (in dollars per share) | $ 2.74 | $ 3.23 | |