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Note 6 - Derivative Instruments (Detail) (ABL Credit Facility [Member], USD $) In Millions, unless otherwise specified | Jun. 30, 2012
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ABL Credit Facility [Member] |
Line of Credit Facility, Amount Outstanding | $ 53.2

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