Income Taxes - Components of Income Before Income Taxes (Detail) - USD ($) $ in Thousands |
12 Months Ended | ||
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Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2015 |
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| Income Taxes [Line Items] | |||
| Income before income taxes, total | $ 7,049 | $ 8,730 | $ 21,752 |
| U.S. [Member] | |||
| Income Taxes [Line Items] | |||
| Income before income taxes, total | 7,346 | 8,301 | 20,799 |
| China [Member] | |||
| Income Taxes [Line Items] | |||
| Income before income taxes, total | $ (297) | $ 429 | $ 953 |
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- Definition Income taxes. No definition available.
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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