Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 25, 2011	Dec. 25, 2010
Current assets:
Cash and cash equivalents	$ 49,388	$ 45,921	[1]
Short-term investments	52,004	52,254	[1]
Accounts receivable, net	53,323	66,801	[1]
Inventories:
Raw materials and purchased parts	42,634	34,922	[1]
Work in process	17,854	17,470	[1]
Finished goods	16,168	10,832	[1]
Total inventories	76,656	63,224	[1]
Deferred income taxes	5,968	5,991	[1]
Other current assets	6,967	6,026	[1]
Total current assets	244,306	240,217	[1]
Property, plant and equipment, at cost:
Land and land improvements	12,432	12,057	[1]
Buildings and building improvements	31,610	31,117	[1]
Machinery and equipment	40,582	41,630	[1]
Property plant and equipment, gross	84,624	84,804	[1]
Less accumulated depreciation and amortization	(45,618)	(45,000)	[1]
Net property, plant and equipment	39,006	39,804	[1]
Goodwill	61,361	58,498	[1]
Intangible assets, net	26,166	26,523	[1]
Other assets	1,052	1,001	[1]
Total assets	371,891	366,043	[1]
Current liabilities:
Accounts payable	19,340	18,198	[1]
Accrued compensation and benefits	14,198	16,944	[1]
Accrued warranty	6,080	5,016	[1]
Customer advances	833	767	[1]
Deferred profit	7,653	14,834	[1]
Income taxes payable	3,856	8,802	[1]
Other accrued liabilities	5,581	6,973	[1]
Total current liabilities	57,541	71,534	[1]
Other accrued liabilities	6,099	5,931	[1]
Deferred income taxes	13,788	13,853	[1]
Commitments and contingencies			[1]
Stockholders' equity:
Preferred stock, $1 par value; 1,000 shares authorized, none issued	0	0	[1]
Common stock, $1 par value; 60,000 shares authorized, 24,146 shares issued and outstanding in 2011 and 23,989 shares in 2010	24,146	23,989	[1]
Paid-in capital	75,098	71,799	[1]
Retained earnings	187,866	179,134	[1]
Accumulated other comprehensive income (loss)	7,353	(197)	[1]
Total stockholders' equity	294,463	274,725	[1]
Total liabilities and stockholders' equity	$ 371,891	$ 366,043	[1]

[1] Derived from December 25, 2010 audited financial statements.