Note 20 - Industry Segment and Geographic Information (Tables)
12 Months Ended
Dec. 31, 2013
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment [Table Text Block]

2013

 

Animal Nutrition

   

Human Nutrition(1)

   

Unallocated

   

Total

 

Revenue (2)

  $ 213,236     $ 31,057     $     $ 244,293  

Cost of sales

    136,146       25,397             161,543  

Gross profit

    77,090       5,660             82,750  

Selling, general and administrative expenses including research and development)

    2,744       6,959       17,997       27,700  

Loss related to plant closure

    6,597                   6,597  

Other (gains) and losses

    140       305       (5 )     440  

Operating income

  $ 67,609     $ (1,604 )   $ (17,992 )   $ 48,013  

Depreciation and amortization

  $ 17,946     $ 2,369     $ 741     $ 21,056  

Identifiable assets

  $ 277,063     $ 53,093     $ 1,238     $ 331,394  

Capital expenditures

  $ 19,080     $ 5,350     $ 366     $ 24,796  

2012

 

Animal Nutrition

   

Human Nutrition

   

Unallocated

   

Total

 

Revenue (3)

  $ 213,624     $ 22,015     $     $ 235,639  

Cost of sales

    176,588       16,995             193,583  

Gross profit

    37,036       5,020             42,056  

Selling, general and administrative expenses (including research and development)

    2,564       3,795       17,587       23,946  

Charges related to U.S. Attorney investigation

    7,990                   7,990  

Other (gains) and losses

    (2,635 )     129             (2,506 )

Operating income

  $ 29,117     $ 1,096     $ (17,587 )   $ 12,626  

Depreciation and amortization

  $ 15,859     $ 1,315     $ 825     $ 17,999  

Identifiable assets

  $ 266,307     $ 27,109     $ 1,880     $ 295,296  

Capital expenditures

  $ 22,810     $ 1,759     $ 495     $ 25,064  

2011

 

Animal Nutrition

   

Human Nutrition

   

Unallocated

   

Total

 

Revenue (4)

  $ 236,489     $ 15,254     $     $ 251,743  

Cost of sales

    187,092       9,977             197,069  

Gross profit

    49,397       5,277             54,674  

Selling, general and administrative expenses (including research and development)

    2,804       3,286       18,548       24,638  

Charges related to U.S. Attorney investigation

    545                   545  

Other (gains) and losses

    (24,869 )     1             (24,868 )

Operating income

  $ 70,917     $ 1,990     $ (18,548 )   $ 54,359  

Depreciation and amortization

  $ 15,098     $ 648     $ 684     $ 16,430  

Identifiable assets

  $ 248,672     $ 27,048     $ 2,110     $ 277,830  

Capital expenditures

  $ 22,542     $ 566     $ 244     $ 23,352  
Reconciliation of Operating Income to Total Earnings Before Income Taxes [Table Text Block]
   

Year ended December 31,

 
   

2013

   

2012

   

2011

 

Operating income for reportable segments

  $ 48,013     $ 12,626     $ 54,359  

Interest income

    18       32       43  

Interest expense

    (1,658 )     (1,335 )     (2,109 )

Other expense, net

    (394 )     (365 )     (408 )

Income before income taxes

  $ 45,979     $ 10,958     $ 51,885  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   

Years Ended December 31,

 
   

2013

   

2012

   

2011

 
   

Revenues

   

Percent

   

Revenues

   

Percent

   

Revenues

   

Percent

 

U.S.

  $ 123.9       50.7 %   $ 93.8       39.8 %   $ 86.6       34.4 %

Mexico

    1.3       0.5       0.9       0.4       0.9       0.3  

Europe

    31.5       12.9       18.6       7.9       30.3       12.1  

Canada

    11.6       4.8       13.2       5.6       15.4       6.1  

Asia (1)

    70.9       29.0       104.2       44.2       114.3       45.4  

South & Central America

    4.8       2.0       4.7       2.0       4.0       1.6  

Other

    0.3       0.1       0.2       0.1       0.2       0.1  

Total

  $ 244.3       100.0 %   $ 235.6       100.0 %   $ 251.7       100.0 %
Revenue from External Customers by Products and Services [Table Text Block]
    Years Ended December 31,  
   

2013

   

2012

   

2011

 
   

Revenues

   

Percent

   

Revenues

   

Percent

   

Revenues

   

Percent

 
                                                 

Fish Meal

  $ 142.5       58.3 %   $ 160.7       68.2 %   $ 175.5       69.8 %

Fish Oil

    43.8       18.0       27.6       11.7       39.6       15.7  

Refined Fish Oil

    22.7       9.3       17.8       7.6       15.6       6.2  

Fish Solubles and Other

    4.2       1.7       7.5       3.2       5.8       2.3  

Dietary Supplement and Food Ingredients and Products

    31.1       12.7       22.0       9.3       15.2       6.0  

Total

  $ 244.3       100.0 %   $ 235.6       100.0 %   $ 251.7       100.0 %