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Changes in Equity - Summary of Changes in Total Equity (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
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Sep. 29, 2012 | Oct. 01, 2011
Changes In Equity [Line Items] |  |
Balance at June 30, 2012 | $ 74,407 |
Net earnings | 6,134 | 6,890
Stock-based compensation expense | 293 |
Stock-based compensation tax benefit realized | 286 |
Other comprehensive loss on interest rate contract, net of tax of $2 | 3 |
Restricted stock units vested and stock options exercised | (537) |
Dividends declared at $0.08 per common share | (903) |
Balance at September 29, 2012 | 79,683 |
Common shares [Member] |  |
Changes In Equity [Line Items] |  |
Balance at June 30, 2012 | 11,182 |
Restricted stock units vested and stock options exercised | 83 |
Balance at September 29, 2012 | 11,265 |
Additional capital in excess of par value [Member] |  |
Changes In Equity [Line Items] |  |
Balance at June 30, 2012 | 22,281 |
Stock-based compensation expense | 293 |
Stock-based compensation tax benefit realized | 286 |
Restricted stock units vested and stock options exercised | (620) |
Balance at September 29, 2012 | 22,240 |
Accumulated other comprehensive loss [Member] |  |
Changes In Equity [Line Items] |  |
Balance at June 30, 2012 | (11,679) |
Other comprehensive loss on interest rate contract, net of tax of $2 | 3 |
Balance at September 29, 2012 | (11,676) |
Retained earnings [Member] |  |
Changes In Equity [Line Items] |  |
Balance at June 30, 2012 | 52,623 |
Net earnings | 6,134 |
Dividends declared at $0.08 per common share | (903) |
Balance at September 29, 2012 | $ 57,854 |

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- Definition Equity impact of aggregate cash, stock, and paid-in-kind dividends declared for common shareholders during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 405 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817 + Details
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