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Inventories

6 Months Ended

Jul. 02, 2011

Inventories

Inventories are stated at the lower of standard cost (which approximates actual cost on a first-in, first-out basis), or market. Inventories consist of the following (in thousands):



	July 2, 2011		January 1, 2011
Raw materials and sub-assemblies	$	20,450	$	22,352
Work in process	13,153		10,295
Finished goods	12,105		10,521
Total inventories	$	45,708	$	43,168

Total amortization expense for demonstration tools for the three month periods ended July 2, 2011 and July 3, 2010 was $0.4 million and $0.3 million, respectively, and for the six month periods ended July 2, 2011 and July 3, 2010 was $0.8 million and $0.6 million, respectively.

The Company reflects the cost of systems that were invoiced upon shipment but deferred for revenue recognition purposes separate from its inventory held for sale as “Inventories—delivered systems” in the Company's Condensed Consolidated Balance Sheets.

- Definition

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

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