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Net Income Per Share | 12 Months Ended
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Mar. 31, 2013
Earnings Per Share [Abstract] |
Net Income Per Share | (5) Net Income Per Share In accordance with the provisions of ASC Topic 260 (“Earnings Per Share”) basic net income per share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding during the period. Diluted net income per common share includes the dilutive effect of potential restricted stock and stock options exercised and the effects of the potential conversion of preferred shares, calculated using the treasury stock method. Outstanding stock options, restricted stock, and convertible preferred shares issued by the Company represent the only dilutive effect reflected in diluted weighted average shares outstanding. The following is a reconciliation of the numerators and denominators of the basic and diluted net income per share computations for the periods presented (in thousands, except for per share amounts):
|  | Year Ended March 31, |
|  | 2013 |  |  | 2012 |  |  | 2011
Net income (numerator): |  |  |  |  |  |  |  |  |
Net income |  | $ | 17,165 |  |  | $ | 16,659 |  |  | $ | 20,871 |
Shares (denominator) |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of common shares outstanding used in basic computation |  |  | 19,926 |  |  |  | 20,613 |  |  |  | 22,514 |
Common shares issuable upon exercise of stock options and vesting of restricted stock |  |  | 113 |  |  |  | 85 |  |  |  | 119 |
Common shares issuable upon conversion of preferred shares |  |  | 10 |  |  |  | 10 |  |  |  | 10 |
Shares used in diluted computation |  |  | 20,049 |  |  |  | 20,708 |  |  |  | 22,643 |
Net income per common share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.86 |  |  | $ | 0.81 |  |  | $ | 0.93 |
Diluted |  | $ | 0.86 |  |  | $ | 0.80 |  |  | $ | 0.92 |
At March 31, 2013 and 2012, all restricted stock was included in the diluted net income per common share computation.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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