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Revolving Credit Facilities and Mortgage Payable - China Line of Credit (Details) | 2 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
May 30, 2018 USD ($) | Mar. 31, 2018 USD ($) | May 25, 2018 USD ($) | Mar. 31, 2017 USD ($) | Mar. 31, 2017 CNY (¥) | Oct. 31, 2016 USD ($) | Oct. 31, 2016 CNY (¥)
China Credit Agreement |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument covenant percentage of facility amount in United States dollars guaranteed |  | 108.50% |  |  |  |  |
Revolving Credit Facility | Line of Credit | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate multiplier for variable rate |  | 115.00% |  |  |  |  |
Interest rate, effective percentage |  | 5.00% |  |  |  |  |
Proceeds from lines of credit |  | $ 21,026,000 |  |  |  |  |
Repayments of lines of credit |  | 21,026,000 |  |  |  |  |
Long-term line of credit |  | 0 |  |  |  |  |
Amount available under the credit agreement |  | $ 47,760,000 |  |  |  |  |
Subsequent Event | Line of Credit | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount available under the credit agreement |  |  | $ 47,760,000 |  |  |  |
Subsequent Event | Line of Credit | Second Amended China Credit Facility, Overdraft Sublimit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term line of credit |  |  | $ 0 |  |  |  |
Subsequent Event | Revolving Credit Facility | Line of Credit | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Proceeds from lines of credit | $ 0 |  |  |  |  |  |
Line of Credit | Revolving Credit Facility | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  | $ 47,760,000 | ¥ 300,000,000
Capacity available for specific purpose other than for trade purchases |  |  |  |  |  | $ 7,960,000 | ¥ 50,000,000
Line of Credit | Revolving Credit Facility | Second Amended China Credit Facility, Overdraft Sublimit |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Overdraft facility sublimit |  |  |  | $ 15,920,000 | ¥ 100,000,000 |  |
People's Bank Of China | Revolving Credit Facility | Line of Credit | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Interest rate multiplier for variable rate |  | 4.35% |  |  |  |  |
Maximum | Second Amended China Credit Facility |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument term |  | 12 months |  |  |  |  |

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- Definition Line of Credit Facility, Overdraft Facility Sublimit + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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