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Note 7 - Net Income Per Share - Summary of Earnings Per Share, Basic, Two Class Method (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Feb. 25, 2017 | Feb. 27, 2016 | Feb. 25, 2017 | Feb. 27, 2016
Net income available to shareholders | $ 22,516 | $ 23,498 | $ 50,730 | $ 59,388
Income allocated to – Basic: |  |  |  |
Allocation of net income for Basic | $ 22,516 | $ 23,498 | $ 50,730 | $ 59,388
Weighted average number of shares outstanding – Basic: |  |  |  |
Weighted average number of shares for Basic (in shares) | 20,290 | 20,132 | 20,281 | 20,120
Common Class A [Member] |  |  |  |
Income allocated to – Basic: |  |  |  |
Allocation of net income for Basic | $ 17,836 | $ 18,691 | $ 40,178 | $ 47,232
Weighted average number of shares outstanding – Basic: |  |  |  |
Weighted average number of shares for Basic (in shares) | 15,305 | 15,241 | 15,295 | 15,230
Income per share – Basic: |  |  |  |
Earnings per share for Basic (in dollars per share) | $ 1.17 | $ 1.23 | $ 2.63 | $ 3.10
Common Class B [Member] |  |  |  |
Income allocated to – Basic: |  |  |  |
Allocation of net income for Basic | $ 4,518 | $ 4,704 | $ 10,184 | $ 11,896
Weighted average number of shares outstanding – Basic: |  |  |  |
Weighted average number of shares for Basic (in shares) | 4,846 | 4,795 | 4,846 | 4,795
Income per share – Basic: |  |  |  |
Earnings per share for Basic (in dollars per share) | $ 0.93 | $ 0.98 | $ 2.10 | $ 2.48
Unvested Participating Shares [Member] |  |  |  |
Income allocated to – Basic: |  |  |  |
Allocation of net income for Basic | $ 162 | $ 103 | $ 368 | $ 260
Weighted average number of shares outstanding – Basic: |  |  |  |
Weighted average number of shares for Basic (in shares) | 139 | 96 | 140 | 95

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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=65016374&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(19)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64863997&loc=d3e1252-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(21)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(23)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 + Details
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Net Income -URI http://asc.fasb.org/extlink&oid=51831255 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Other Comprehensive Income -URI http://asc.fasb.org/extlink&oid=51831270 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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