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EARNINGS PER SHARE | 12 Months Ended
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Mar. 31, 2013
EARNINGS PER SHARE [Abstract] |
EARNINGS PER SHARE | 9. EARNINGS PER SHARE During the preparation of the Form 10-Q for the three months ended December 31, 2012, we reviewed our restricted stock awards ("RSAs") agreements and identified that certain RSAs issued contain non-forfeitable rights to dividends issued prior to vesting. As a result, those RSAs are considered participating securities which requires us to use the two-class method to compute basic and diluted earnings per shares. Accordingly, we have corrected our reported earnings per share for the corresponding periods. The weighted average shares outstanding for the fiscal years ended March 31, 2012 and 2011 used to calculate diluted earnings per common share decreased by 119 thousand and 70 thousand, respectively. Basic earnings per share for the fiscal years ended March 31, 2012 and 2011 decreased by $0.10 and $0.06, respectively. Diluted earnings per share for the fiscal years ended March 31, 2012 and 2011 decreased by $0.05 and $0.04, respectively. Basic earnings per share is calculated by dividing net earnings attributable to common shareholders by the basic weighted average number of shares of common stock outstanding during each period. Diluted earnings per share reflects the potential dilution of securities that could participate in our earnings, including incremental shares issuable upon the assumed exercise of "in-the-money" stock options and other common stock equivalents during each period. The following table provides a reconciliation of the numerators and denominators used to calculate basic and diluted net earnings per common share as disclosed in our consolidated statements of operations for the fiscal years ended March 31, 2013, 2012, and 2011 (in thousands, except per share data).
|  | Year Ended March 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Basic and diluted shares outstanding |  |  |  |  |  |  |  |  |
Weighted average shares outstanding — basic |  |  | 7,810 |  |  |  | 8,002 |  |  |  | 8,201 |
Effect of dilutive shares |  |  | 93 |  |  |  | 93 |  |  |  | 152 |
Weighted average shares outstanding — diluted |  |  | 7,903 |  |  |  | 8,095 |  |  |  | 8,353 |
Calculation of earnings per share - basic |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  | $ | 34,830 |  |  | $ | 23,367 |  |  | $ | 23,727 |
Net earnings attributable to participating securities |  |  | 668 |  |  |  | 764 |  |  |  | 524 |
Net earnings attributable to common shareholders |  | $ | 34,162 |  |  | $ | 22,603 |  |  | $ | 23,203 |
Earnings per share - basic |  | $ | 4.37 |  |  | $ | 2.82 |  |  | $ | 2.83 |
Calculation of earnings per share - diluted |  |  |  |  |  |  |  |  |  |  |  |
Net earnings attributable to common shareholders— basic |  | $ | 34,162 |  |  | $ | 22,603 |  |  | $ | 23,203 |
Add: undistributed earnings attributable to participating securities |  |  | 4 |  |  |  | 8 |  |  |  | 9 |
Net earnings attributable to common shareholders— diluted |  | $ | 34,166 |  |  | $ | 22,612 |  |  | $ | 23,213 |
Earnings per share - diluted |  | $ | 4.32 |  |  | $ | 2.79 |  |  | $ | 2.78 |
All unexercised stock options were included in the computations of diluted earnings per common share for the years ended March 31, 2013, 2012 and 2011.

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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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