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Summary of Significant Accounting Policies (Detail Textuals) - USD ($) shares in Thousands, $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 19, 2015 | Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2017 | Mar. 17, 2015
Significant Accounting Policies [Line Items] |  |  |  |  |
Payment for common stock |  | $ 50 | $ 70,409 |  |
Common shares outstanding |  | 7,753 |  | 7,810 |
Tender Offer |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |
Purchase of common stock | 4,700 |  |  |  |
Payment for common stock | $ 70,500 |  |  |  |
Percentage of aggregate number of common shares purchased |  |  |  |  | 38.00%
Common shares outstanding | 7,700 |  |  |  |

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