Short-Term Investments

3 Months Ended

Mar. 27, 2016

Short-term Investments [Abstract]

Cash, Cash Equivalents, and Short-term Investments [Text Block]

Short-Term Investments

The company's short-term investments include certificates of deposit and fixed deposits with original maturities of three months or less. Certificates of deposit and fixed deposits whose original maturity is greater than three months and is one year or less are classified as short-term investments and certificates of deposit and fixed deposits whose maturity is greater than one year at the balance sheet date are classified as non-current assets in our condensed consolidated balance sheets. The purchase of any certificates of deposit or fixed deposits that are classified as short-term investments or non-current assets appear in the investing section of our condensed consolidated statements of cash flows.

Restricted Deposits

We purchase certificates of deposit that mature within twelve months and are used to secure or collateralize letters of credit securing our workers’ compensation obligations.  At March 27, 2016 and December 27, 2015, certificates of deposit totaling $0.8 million and $1.0 million, respectively, were restricted in use and were classified as short-term investments on our condensed consolidated balance sheets.