Quarterly report pursuant to Section 13 or 15(d)

Income Per Share - Reconciliation of Numerators and Denominators of Basic and Diluted Income Per Share (Detail)

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Income Per Share - Reconciliation of Numerators and Denominators of Basic and Diluted Income Per Share (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended 9 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Numerator:        
Net income $ 1,431 $ 3,047 $ 7,828 $ 7,052
Denominator:        
Weighted common shares outstanding 10,070 9,991 10,045 9,980
Share equivalent units ("SEUs")   43 18 43
Weighted average common shares and SEUs 10,070 10,034 10,063 10,023
Basic income per share $ 0.14 $ 0.30 $ 0.78 $ 0.70
Numerator:        
Net income $ 1,431 $ 3,047 $ 7,828 $ 7,052
Denominator:        
Weighted average shares and SEUs outstanding 10,070 10,034 10,063 10,023
Stock options outstanding 37 23 36 23
Weighted average common and potential common shares outstanding 10,107 10,057 10,099 10,046
Diluted income per share $ 0.14 $ 0.30 $ 0.78 $ 0.70