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Long-Term Debt and Lines of Credit - Long-Term Debt - Narrative (Detail) (USD $) | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Nov. 02, 2014 Payment | Apr. 27, 2014 | Oct. 27, 2013 | Aug. 11, 2008
Debt Instrument [Line Items] |  |  |  |
Long-term debt | $ 2,200,000 | $ 4,400,000 | $ 4,400,000 |
Unsecured senior term notes [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Issuance of unsecured term notes |  |  |  | 11,000,000
Fixed interest rate |  |  |  | 8.01%
Term of the note agreement | 7 years |  |  |
Required amount of principal payment installments | 2,200,000 |  |  |
Date of first required principal payment | Aug. 11, 2011 |  |  |
Required debt payment frequency | Annual |  |  |
Average term period for remaining principal payments, in years | 9 months 18 days |  |  |
Maturity date | Aug. 11, 2015 |  |  |
Remaining annual payment | 2,200,000 |  |  |
Number of annual payment remaining | 1 |  |  |
Long-term debt, fair value | $ 2,300,000 | $ 4,600,000 | $ 4,600,000 |

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- Definition Number of remaining payments under debt agreement. + References No definition available. + Details
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- Definition Date the debt agreement requires the first payment to be made, 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 210.5-02.22) -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 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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