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Stock Option Plan and Stock Based Compensation - Stock Option Activity (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Mar. 01, 2013
Feb. 29, 2016
Feb. 28, 2015
Feb. 28, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Number of Shares, Options Outstanding, Beginning Balance   374,823 369,405 363,000
Number of Shares, Granted   43,426 31,418 36,155
Number of Shares, Terminated   (47,300) (20,000) (7,750)
Number of Shares, Exercised     (6,000) (22,000)
Number of Shares, Options Outstanding, Ending Balance 363,000 370,949 374,823 369,405
Weighted Average Exercise Price, Beginning Balance   $ 15.95 $ 15.86 $ 15.79
Weighted Average Exercise Price, Granted   13.69 15.78 14.05
Weighted Average Exercise Price, Terminated   18.31 16.21 13.30
Weighted Average Exercise Price, Exercised     8.94 12.59
Weighted Average Exercise Price, Ending Balance $ 15.79 $ 15.38 $ 15.95 $ 15.86
Weighted Average Remaining Contractual Life, Ending Balance 6 years 4 months 24 days 5 years 10 months 24 days 5 years 8 months 12 days 6 years
Aggregate Intrinsic Value $ 421 $ 1,616 $ 210 $ 416
Number of Shares, Exercisable   294,524    
Weighted Average Exercise Price, Exercisable   $ 15.66    
Weighted Average Remaining Contractual Life, Exercisable   5 years 2 months 12 days    
Aggregate Intrinsic Value, Exercisable   $ 1,201