XML 93 R82.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Note 13 - Shareholders' Equity (Details) (Common Class B [Member]) | 12 Months Ended
--- | ---
Aug. 31, 2013
Common Class B [Member] |
Note 13 - Shareholders' Equity (Details) [Line Items] |
Common Stock Dividend Rate Percentage | 125.00%
Conversion of Stock, Shares Converted (in Shares) | 12,000

X
- Definition Common Stock Dividend Rate Percentage + References No definition available. + Details
Name: | unf_CommonStockDividendRatePercentage
Namespace Prefix: | unf_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | unf_Note13ShareholdersEquityDetailsLineItems
Namespace Prefix: | unf_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_ConversionOfStockSharesConverted1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration