Note 2 - Acquisition of Wisconsin Specialty Protein, L.L.C. (Tables)
12 Months Ended
Dec. 31, 2013
Wisconsin Specialty Protein [Member]
 
Note 2 - Acquisition of Wisconsin Specialty Protein, L.L.C. (Tables) [Line Items]  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
    (in thousands)  

Cash

  $ 403  

Other current assets, net including receivables, prepaid and inventory

    2,515  

Property, plant, and equipment, net

    14,095  

Identifiable intangible assets (a)

    4,448  

Liabilities assumed

    (5,996 )

Total identifiable net assets

    15,465  

Goodwill

    11,614  

Total consideration

  $ 27,079  
Business Acquisition, Pro Forma Information [Table Text Block]
    Revenue     Net income (loss)  
    (in thousands)  

WSP from February 27, 2013 – December 31, 2013

  $ 9,810     $ (195 )

2013 supplemental pro forma from January 1, 2013 – December 31, 2013

  $ 246,361     $ 30,518  

2012 supplemental pro forma from January 1, 2012 – December 31, 2012

  $ 247,109     $ 4,997  
InCon [Member]
 
Note 2 - Acquisition of Wisconsin Specialty Protein, L.L.C. (Tables) [Line Items]  
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]
    Amounts recognized as of acquisition date  
    (in thousands)  

Working capital (a)

  $ 593  

Property, plant, and equipment, net

    6,400  

Identifiable intangible assets (b)

    1,341  

Total identifiable net assets

    8,334  

Goodwill

    936  

Total consideration, net of final working capital adjustment

  $ 9,270