Subsequent Events	9 Months Ended
Oct. 08, 2011
Subsequent Events [Abstract]
Subsequent Events	16. SUBSEQUENT EVENTS The company has evaluated subsequent events since October 8, 2011, the date of these financial statements. There were no events or transactions, other than disclosed below, discovered during this evaluation that require recognition or disclosure in the financial statements. On October 31, 2011, MF Global Holdings Ltd. filed for bankruptcy. An affiliate of MF Global acted as the clearing member for one of our commodity hedge brokerage accounts. We have since transferred our account to another firm. However, as of November 8, 2011, approximately $3.8 million of collateral related to that account remains outstanding with MF Global. By regulation, these funds should have been held in a segregated account. The trustee authorized under the Security Investor Protection Act (SIPA) is attempting to locate and return any missing funds to clients of MF Global, but there is no guarantee that any or all of the funds will be recovered and returned. We will continue to monitor the situation as facts become available.

Subsequent Events

9 Months Ended

Oct. 08, 2011

16. SUBSEQUENT EVENTS

The company has evaluated subsequent events since October 8, 2011, the date of these financial statements. There were no events or transactions, other than disclosed below, discovered during this evaluation that require recognition or disclosure in the financial statements.

On October 31, 2011, MF Global Holdings Ltd. filed for bankruptcy. An affiliate of MF Global acted as the clearing member for one of our commodity hedge brokerage accounts. We have since transferred our account to another firm. However, as of November 8, 2011, approximately $3.8 million of collateral related to that account remains outstanding with MF Global. By regulation, these funds should have been held in a segregated account. The trustee authorized under the Security Investor Protection Act (SIPA) is attempting to locate and return any missing funds to clients of MF Global, but there is no guarantee that any or all of the funds will be recovered and returned. We will continue to monitor the situation as facts become available.