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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Mar. 31, 2016
Accounting Policies [Abstract] |
Schedule of cash dividends declared |
Fiscal Year |  | Date Declared |  | Record Date |  | Date Paid |  | Amount of Dividend |
2014 |  | May 7, 2013 |  | June 21, 2013 |  | June 28, 2013 |  | $ | 0.12 |
|  | August 13, 2013 |  | September 20, 2013 |  | September 27, 2013 |  |  | 0.12 |
|  |  |  |  |  |  |  | $ | 0.24 |
Schedule of property and equipment estimated useful lives |
Automobiles |  | 3 years
Equipment |  | 5 years
Furniture and fixtures |  | 7 years
Leasehold improvements |  | Lesser of lease term or useful life (generally 6 - 7 years)
Schedule of computation of basic and diluted earnings per share |
|  | Fiscal Year ended March 31, (In thousands, except earnings per share numbers) |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net income per consolidated statements of income |  | $ | 12,379 |  |  | $ | 16,856 |  |  | $ | 16,703 |
Less: Allocation of earnings to participating securities |  |  | (170 | ) |  |  | — |  |  |  | — |
Net income allocated to common stock |  |  | 12,209 |  |  | $ | 16,856 |  |  | $ | 16,703 |
Basic earnings per share computation: |  |  |  |  |  |  |  |  |  |  |  |
Net income allocated to common stock |  | $ | 12,209 |  |  | $ | 16,856 |  |  | $ | 16,703 |
Weighted average common shares outstanding, including shares considered participating securities |  |  | 7,727 |  |  |  | 12,013 |  |  |  | 12,096 |
Less: Weighted average participating securities outstanding |  |  | (105 | ) |  |  | — |  |  |  | — |
Weighted average shares of common stock |  |  | 7,622 |  |  |  | 12,013 |  |  |  | 12,096 |
Basic earnings per share |  | $ | 1.60 |  |  |  | 1.40 |  |  |  | 1.38 |
Diluted earnings per share computation: |  |  |  |  |  |  |  |  |  |  |  |
Net income allocated to common stock |  | $ | 12,209 |  |  | $ | 16,856 |  |  | $ | 16,703 |
Undistributed earnings re-allocated to participating securities |  |  | 2 |  |  |  | — |  |  |  | — |
Net income allocated to common stock |  | $ | 12,211 |  |  | $ | 16,856 |  |  | $ | 16,703 |
Weighted average common shares outstanding for basic earnings per share |  |  | 7,622 |  |  |  | 12,013 |  |  |  | 12,096 |
Incremental shares from stock options |  |  | 70 |  |  |  | 179 |  |  |  | 229 |
Weighted average shares and dilutive potential common shares |  |  | 7,692 |  |  |  | 12,192 |  |  |  | 12,325 |
Diluted earnings per share |  | $ | 1.59 |  |  | $ | 1.38 |  |  | $ | 1.36 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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