Stock Option Plan and Stock Based Compensation - Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands |
3 Months Ended |
|
May 31, 2016 |
Mar. 01, 2016 |
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
|
|
| Number of Shares, Options Outstanding, Beginning Balance |
370,949
|
|
| Number of Shares, Granted |
0
|
|
| Number of Shares, Terminated |
0
|
|
| Number of Shares, Exercised |
(193,453)
|
|
| Number of Shares, Options Outstanding, Ending Balance |
177,496
|
|
| Weighted Average Exercise Price, Beginning Balance |
$ 15.38
|
|
| Weighted Average Exercise Price, Granted |
0
|
|
| Weighted Average Exercise Price, Terminated |
0
|
|
| Weighted Average Exercise Price, Exercised |
15.04
|
|
| Weighted Average Exercise Price, Ending Balance |
$ 15.76
|
|
| Weighted Average Remaining Contractual Life, Ending Balance |
4 years 10 months 24 days
|
|
| Aggregate Intrinsic Value |
$ 453
|
$ 1,616
|
| Number of Shares, Exercisable |
172,423
|
|
| Weighted Average Exercise Price, Exercisable |
$ 15.79
|
|
| Weighted Average Remaining Contractual Life, Exercisable |
4 years 9 months 18 days
|
|
| Aggregate Intrinsic Value, Exercisable |
$ 434
|
|