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Legal Proceedings and Contingencies - Additional Information (Detail) (USD $)
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1 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | |
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Apr. 30, 2012
Patents
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May 31, 2014
Defendants
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May 31, 2014
Penford Products [Member]
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Mar. 31, 2014
Carolina Starches, LLC [Member]
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May 31, 2014
Carolina Starches, LLC [Member]
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| Loss Contingencies [Line Items] | |||||
| Number of patents under allegation of patent infringement | 2 | ||||
| Number of defendants | 2 | ||||
| Name of defendants | Penford Products and Carolina Starches, LLC | ||||
| Name of plaintiff | Pirinate Consulting Group, LLC | ||||
| Amount of recovery sought in complaint | $ 778,000 | $ 216,000 | |||
| Payment for full and final settlement of litigation | $ 10,000 | ||||