Note 3 - Short-term Investments |
9 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Sep. 30, 2015 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | 3. Short-Term Investments Short-term investments consist of commercial paper, corporate bonds and certificates of deposit which are classified as available-for-sale securities and are carried at current fair market value, with the resulting unrealized gains and losses, if any, excluded from income and reported, net of tax, as a separate component of shareholders' equity until realized. If the carrying value of an investment is in excess of its fair market value, an impairment charge to adjust the carrying value to the fair market value is recorded if the impairment was considered other-than-temporary. There were no other-than-temporary impairments related to declines in fair market value of short-term investments during the three or nine months ended September 30, 2015 and September 28, 2014. No short-term investments were held as of September 30, 2015. Short-term investments consisted of the following as of December 28, 2014:
See Note 13, Financial Instruments and Fair Value Measurements , for further discussion of the fair value of these investments. |