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Note 3 - Short-term Investments (Tables)

6 Months Ended

Jun. 28, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation [Table Text Block]

		Amortized Cost				Fair Value				Unrealized Gain/(Loss)
June 28, 2015
Commercial paper		$	6,989			$	6,988			$	(1	)
Corporate bonds			33,624				33,605				(19	)
Balances at June 28, 2015		$	40,613			$	40,593			$	(20	)
December 28, 2014
Commercial paper		$	23,982			$	23,984			$	2
Corporate bonds			21,717				21,693				(24	)
Certificates of deposit			961				961				—
Balances at December 28, 2014		$	46,660			$	46,638			$	(22	)

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- Definition

Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value.

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