Note 9 - Debt (Detail) - Principal Payments Over Next 5 Years and Thereafter (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
2012	$ 10,942
2013	9,560
2014	9,590
2015	209,794
2016	895
Thereafter	930
Total	241,711
Revolver [Member]
2015	177,575
Total	177,575
Term Loan [Member]
2012	8,750
2013	8,750
2014	8,750
2015	31,354
Total	57,604
Industrial Revenue Bond [Member]
2012	785
2013	810
2014	840
2015	865
2016	895
Thereafter	930
Total	5,125
Capital Lease Obligations [Member]
2012	1,407
Total	$ 1,407

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 47

-Paragraph 10

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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