Business and Credit Concentration (Details) (Customer concentration risk)	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
Dec. 31, 2012 Net sales Customer A	Dec. 31, 2011 Net sales Customer A	Dec. 31, 2012 Net sales Customer A Wholesale/U.S. Nutrition	Dec. 31, 2011 Net sales Customer A Wholesale/U.S. Nutrition	Dec. 31, 2012 Net sales Customer B	Dec. 31, 2011 Net sales Customer B	Dec. 31, 2012 Net sales Customer B Wholesale/U.S. Nutrition	Dec. 31, 2011 Net sales Customer B Wholesale/U.S. Nutrition	Dec. 31, 2012 Net sales Customer C	Dec. 31, 2011 Net sales Customer C	Dec. 31, 2012 Net sales Customer C Wholesale/U.S. Nutrition	Dec. 31, 2011 Net sales Customer C Wholesale/U.S. Nutrition	Dec. 31, 2012 Gross accounts receivable Customer A Wholesale segment	Sep. 30, 2012 Gross accounts receivable Customer A Wholesale segment	Dec. 31, 2012 Gross accounts receivable Customer B Wholesale segment	Sep. 30, 2012 Gross accounts receivable Customer B Wholesale segment	Dec. 31, 2012 Gross accounts receivable Customer C Wholesale segment	Sep. 30, 2012 Gross accounts receivable Customer C Wholesale segment
Business and Credit Concentration
Percentage of concentration risk	14.00%	15.00%	22.00%	24.00%	8.00%	8.00%	13.00%	13.00%	7.00%	3.00%	10.00%	5.00%	17.00%	18.00%	13.00%	11.00%	13.00%	10.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6351-108592

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 21

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13537-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 275

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=6927468&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 825

-SubTopic 10

-Section 50

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13531-108611

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