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Long-Term Debt and Lines of Credit - Lines of Credit Narrative (Detail)	3 Months Ended		3 Months Ended			3 Months Ended			3 Months Ended
	Jul. 29, 2012 United States [Member] Amended and Restated Credit Agreement [Member] Revolving Credit Facility [Member] USD ($)	Apr. 29, 2012 United States [Member] Amended and Restated Credit Agreement [Member] Revolving Credit Facility [Member] USD ($)	Jul. 29, 2012 China [Member] Revolving credit agreement [Member] USD ($)	Jul. 29, 2012 China [Member] Revolving credit agreement [Member] CNY	Apr. 29, 2012 China [Member] Revolving credit agreement [Member] USD ($)	Jul. 29, 2012 China [Member] Renewal Of Agreement [Member] Revolving credit agreement [Member]	Sep. 02, 2012 China [Member] Renewal Of Agreement [Member] Revolving credit agreement [Member] USD ($)	Sep. 02, 2012 China [Member] Renewal Of Agreement [Member] Revolving credit agreement [Member] CNY	Jul. 29, 2012 Poland [Member] Revolving credit agreement [Member] USD ($)	Apr. 29, 2012 Poland [Member] Revolving credit agreement [Member] USD ($)	Apr. 29, 2012 Poland [Member] Revolving credit agreement [Member] PLN	Jan. 17, 2012 Poland [Member] Revolving credit agreement [Member] PLN
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 7,600,000		$ 6,300,000	40,000,000			$ 6,300,000	40,000,000	$ 2,000,000			6,800,000
Expiration date	Aug. 25, 2013		Sep. 02, 2012	Sep. 02, 2012		Sep. 02, 2013			Jan. 15, 2013
Applicable interest rate at end of period	2.24%								6.95%
Interest rate description	This agreement provides for a pricing matrix to determine the interest rate payable on loans made under the agreement		Interest rate determined by the Chinese government	Interest rate determined by the Chinese government					Bears interest at WIBOR (Warsaw Interbank Offered Rate) plus 2%
Outstanding amount	$ 0	$ 0	$ 0		$ 0				$ 834,000	$ 889,000	2,800,000
Percent added to reference rate in effect from time to time to set the interest rate									2.00%
Reference rate on which the interest rate is based									Warsaw Interbank Offered Rate

X

- Definition

The percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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X

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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X

- Definition

Amount borrowed under the credit facility as of the balance sheet date.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ 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



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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X

- Definition

The effective interest rate at the end of the reporting period.

+ 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



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-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.



Reference 2: 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



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph 19, 22

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- 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 Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-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.



Reference 2: 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



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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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