A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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 210.5-02.4)
-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 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

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Amount 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. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash
-URI http://asc.fasb.org/extlink&oid=6506951

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3044-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Cash Equivalents
-URI http://asc.fasb.org/extlink&oid=6507016

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

+ References

No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
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-Name Accounting Standards Codification
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-SubTopic 10
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-Paragraph 21
-Subparagraph (a)
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Risks and Uncertainties - Additional Information (Detail) - USD ($)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Unusual Risk Or Uncertainty [Line Items]
Allowance for doubtful accounts	$ 9,000	$ 5,000
Cash, cash equivalents and restricted cash	30,096,000	43,485,000	$ 26,328,000
Maximum
Unusual Risk Or Uncertainty [Line Items]
Cash and restricted cash deposit	$ 250,000	$ 250,000
Customer Concentration Risk \| Net Revenues
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	81.00%	87.00%
Customer Concentration Risk \| Net Revenues \| Target
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	42.00%	51.00%
Customer Concentration Risk \| Net Revenues \| Wal-Mart
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	31.00%	28.00%
Customer Concentration Risk \| Net Revenues \| Funai
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	8.00%	8.00%
Product Concentration Risk \| Net Revenues
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	93.00%	95.00%
Product Concentration Risk \| Net Revenues \| Microwave Ovens
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	56.00%	67.00%
Product Concentration Risk \| Net Revenues \| Compact Refrigerators
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	37.00%	28.00%
Credit Concentration Risk \| Trade Accounts Receivable, Net of Specific Reserves \| Target
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	0.00%	50.00%
Credit Concentration Risk \| Trade Accounts Receivable, Net of Specific Reserves \| Wal-Mart
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	88.00%	30.00%
Supplier Concentration Risk [Member] \| Products for Resale \| Three Largest Factories Suppliers
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	98.00%	96.00%
Supplier Concentration Risk [Member] \| Products for Resale \| One Factory from the Largest Factories
Unusual Risk Or Uncertainty [Line Items]
Concentration risk, percentage	53.00%	66.00%