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Cash Equivalents
3 Months Ended
Mar. 31, 2013
Cash and Cash Equivalents [Abstract]  
Cash Equivalents
Cash Equivalents
Cash equivalents consist of highly liquid money-market mutual funds and bank deposits with maturities of three months or less when purchased. Cash equivalents totaled $0.3 million at March 31, 2013 and $2.4 million at December 30, 2012.