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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring [Member] - USD ($) | Jun. 30, 2018 | Mar. 31, 2018
--- | --- | ---
Assets: |  |
Cash equivalents | $ 1,015,000 | $ 1,011,000
Foreign currency forward contracts |  | 9,000
Total assets measured at fair value on a recurring basis | 1,015,000 | 1,020,000
Liabilities: |  |
Foreign currency forward contracts | 424,000 |
Total liabilities measured at fair value on a recurring basis | 424,000 | 0
Level 1 [Member] |  |
Assets: |  |
Cash equivalents | 1,015,000 | 1,011,000
Total assets measured at fair value on a recurring basis | 1,015,000 | 1,011,000
Level 2 [Member] |  |
Assets: |  |
Foreign currency forward contracts |  | 9,000
Total assets measured at fair value on a recurring basis |  | $ 9,000
Liabilities: |  |
Foreign currency forward contracts | 424,000 |
Total liabilities measured at fair value on a recurring basis | $ 424,000 |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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- Definition Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps. + References No definition available. + Details
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- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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