Fair Value Measurements and Disclosures (Tables)

9 Months Ended

Sep. 28, 2013

Assets and liabilities measurements at estimated fair value on recurring basis excluding accrued interest components

The following tables present the Company’s assets and liabilities measured at estimated fair value on a recurring basis, excluding accrued interest components, categorized in accordance with the fair value hierarchy (in thousands):



	September 28, 2013								December 29, 2012
	Fair Value Measurements Using Input Types								Fair Value Measurements Using Input Types
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents:
Money market funds	$	748	$	—	$	—	$	748	$	109	$	—	$	—	$	109
Commercial paper	—		—		—		—		—		2,600		—		2,600
Municipal securities	—		—		—		—		—		—		—		—
Total cash equivalents	748		—		—		748		109		2,600		—		2,709

Marketable securities:
U.S. Treasury securities and U.S. Government agency securities	20,738		—		—		20,738		20,568		—		—		20,568
Commercial paper, corporate debt securities, and municipal securities	—		28,319		—		28,319		—		26,425		—		26,425
Total marketable securities	20,738		28,319		—		49,057		20,568		26,425		—		46,993
Total ⁽¹⁾	$	21,486	$	28,319	$	—	$	49,805	$	20,677	$	29,025	$	—	$	49,702

Liabilities:
Contingent consideration payable	$	—	$	—	$	2,772	$	2,772	$	—	$	—	$	2,462	$	2,462

(1) Excludes $43.1 million and $60.2 million held in operating accounts as of September 28, 2013, and December 29, 2012, respectively.

Fair value measurement on recurring basis, unobservable input reconciliation



Changes in Level 3 liabilities (in thousands)
Fair value at December 29, 2012	$	2,462
Payments made to Zygo Corporation	(735		)
Change in fair value included in earnings	1,045
Fair Value at September 28, 2013	$	2,772

- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

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