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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Mar. 31, 2018
Accounting Policies [Abstract] |
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 (loss) per share |
|  | Fiscal Year ended March 31, (In thousands, except earnings per share numbers) |
|  | 2018 |  |  | 2017 |  |  | 2016 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income per consolidated statements of income |  | $ | (1,098 | ) |  | $ | 5,409 |  |  | $ | 12,379 |
Less: Allocation of earnings to participating securities |  |  | 14 |  |  |  | (70 | ) |  |  | (170 | )
Net (loss) income allocated to common stock |  |  | (1,084 | ) |  |  | 5,339 |  |  |  | 12,209 |
Basic earnings (loss) per share computation: |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) allocated to common stock |  | $ | (1,084 | ) |  | $ | 5,339 |  |  | $ | 12,209 |
Weighted average common shares outstanding, including shares considered participating securities |  |  | 7,819 |  |  |  | 7,766 |  |  |  | 7,727 |
Less: Weighted average participating securities outstanding |  |  | (100 | ) |  |  | (102 | ) |  |  | (105 | )
Weighted average shares of common stock |  |  | 7,719 |  |  |  | 7,664 |  |  |  | 7,622 |
Basic earnings (loss) per share |  | $ | (.14 | ) |  | $ | .70 |  |  | $ | 1.60 |
Diluted earnings (loss) per share computation: |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income allocated to common stock |  | $ | (1,084 | ) |  | $ | 5,339 |  |  | $ | 12,209 |
Undistributed earnings re-allocated to participating securities |  |  | — |  |  |  | — |  |  |  | 2 |
Numerator for diluted earnings (loss) per share |  | $ | (1,084 | ) |  | $ | 5,339 |  |  | $ | 12,211 |
Weighted average common shares outstanding for basic earnings (loss) per share |  |  | 7,719 |  |  |  | 7,664 |  |  |  | 7,622 |
Incremental shares from stock options |  |  | — |  |  |  | 62 |  |  |  | 70 |
Weighted average shares and dilutive potential common shares |  |  | 7,719 |  |  |  | 7,726 |  |  |  | 7,692 |
Diluted earnings (loss) per share |  | $ | (.14 | ) |  | $ | .69 |  |  | $ | 1.59 |

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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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