Effective state and local income tax rate.

No definition available.

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- Definition

Income tax rate reduction.

+ References

No definition available.

+ Details

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- Definition

Preferential enterprise income tax rate.

+ References

No definition available.

+ Details

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- Definition

Reduced income tax rate.

+ References

No definition available.

+ Details

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- Definition

Tax loss carryback period minimum period carried back.

+ References

No definition available.

+ Details

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- Definition

Tax loss carryforwards maximum period carried forward.

+ References

No definition available.

+ Details

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- Definition

Tax losses.

+ References

No definition available.

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- Definition

Tax losses carry forward amount.

+ References

No definition available.

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- Definition

Tax losses carry forward future amount.

+ References

No definition available.

+ Details

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- Definition

Unification income tax rate for domestic and foreign invested enterprises.

+ References

No definition available.

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Data Type:	num:percentItemType
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- Definition

Unrecognized tax benefits income tax penalties and interest accrued reversal.

+ References

No definition available.

+ Details

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- Definition

Unrecognized tax benefits tax credit carry forwards.

+ References

No definition available.

+ Details

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- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(2))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph h

-Subparagraph 2

-Article 4

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 47

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

The amount of the additional liability or refund received or expected based on a final settlement with a taxing authority.

+ References

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- Definition

The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

+ References

+ Details

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- Definition

The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

+ References

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- Definition

The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15A

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319

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-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 21

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 15

-Subparagraph (c)

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-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 21

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name FASB Interpretation (FIN)

-Number 48

-Paragraph 15, 16

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Income Taxes - Additional Information (Detail)	12 Months Ended							12 Months Ended
Income Taxes - Additional Information (Detail)	Mar. 31, 2013 USD ($)	Mar. 31, 2012 USD ($)	Mar. 31, 2011 USD ($)	Mar. 31, 2013 FASB ASC 740 [Member] USD ($)	Mar. 31, 2012 FASB ASC 740 [Member] USD ($)	Mar. 31, 2013 Hong Kong Tax Authority [Member] USD ($)	Mar. 31, 2013 Hong Kong Tax Authority [Member] HKD	Mar. 31, 2013 Other Income [Member] Hong Kong Tax Authority [Member] USD ($)	Mar. 31, 2013 Other Income [Member] Hong Kong Tax Authority [Member] HKD	Mar. 31, 2013 Interest Income [Member] Hong Kong Tax Authority [Member] USD ($)	Mar. 31, 2013 Interest Income [Member] Hong Kong Tax Authority [Member] HKD	Mar. 31, 2013 Hong Kong Subsidiary [Member]	Mar. 31, 2012 Hong Kong Subsidiary [Member]	Mar. 31, 2011 Hong Kong Subsidiary [Member]	Mar. 31, 2013 Dongguan Lite Array Company Limited [Member]	Mar. 31, 2013 Dongguan Lite Array Company Limited [Member] Prior to December 31, 2008 [Member]	Mar. 31, 2013 Dongguan Wing Shing Electrical Products Factory Company Limited [Member] Unified Enterprise Income Tax Law [EIT] [Member]	Mar. 31, 2012 Dongguan Wing Shing Electrical Products Factory Company Limited [Member] Unified Enterprise Income Tax Law [EIT] [Member]	Mar. 31, 2011 Dongguan Wing Shing Electrical Products Factory Company Limited [Member] Unified Enterprise Income Tax Law [EIT] [Member]	Mar. 31, 2013 Dongguan Wing Shing Electrical Products Factory Company Limited [Member] Prior to December 31, 2008 [Member]
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Rate of income tax of subsidiaries	28.90%	46.90%	(5.00%)									16.50%	16.50%	16.50%			25.00%	25.00%	25.00%
Preferential income tax rate															15.00%	27.00%				27.00%
Reduced tax rate																24.00%				24.00%
Local income tax rate																3.00%				3.00%
Unification of the income tax rate for domestic-invested and foreign-invested enterprises	25.00%
Reduction in corporate income tax rate for succeeding three years															50.00%
Tax losses carried forward	$ 23,591,422	$ 20,843,486
Tax losses available indefinitely for offsetting against future taxable income	4,114,021	2,196,670
Tax losses carried back or forward	19,477,401	18,646,816
Carried back period	2 years
Carried forward period	20 years
Unrecognized tax benefits	8,870,677	9,117,443	7,437,277	4,879,338	5,701,782
Remaining unrecognized tax benefits set off	3,991,339	3,415,661
Reversed interest and potential penalties	1,021,397		227,702
Accrued interest and potential penalties of uncertain tax position		121,032
Interest and potential penalties of uncertain tax positions	651,721	1,667,602
Additional assessable profits						1,612,967	12,520,654
Penalty and interest paid								$ 257,649	2,000,000	$ 60,064	466,249