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Note 2 - Dispositions & Exit Activities (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Lease Exit Costs, Continuing Operations $ 228
Lease Exit Costs, Discontinued Operations 815
Percentage Of Subsidiary Stock Sold 100.00%
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds 2,533
Proceeds from Divestiture of Businesses 2,133
Length Of Time Sales Proceeds Held In Escrow 1 year
Escrow Deposit 250
Sales Price Reserved For Employee Retention Programs $ 150
Divestiture Non Compete Period 2 years
Divestiture No Tampering Period 2 years
Restructuring and Related Cost, Number of Positions Eliminated 40
Restructuring and Related Cost, Number of Facilities Closed 5
Minimum [Member]
  
Divestiture Representations And Warranties Period 2 years
Maximum [Member]
  
Divestiture Representations And Warranties Period 3 years