Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 30, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 29,994	$ 46,537
Accounts receivable, net	96,391	97,300
Unbilled receivables	3,344	3,556
Inventories	149,402	148,318
Production cost of contracts	20,193	17,960
Deferred income taxes	11,077	10,459
Other current assets	9,412	10,441
Total Current Assets	319,813	334,571
Property and Equipment, Net	97,005	98,383
Goodwill	161,940	161,940
Intangibles, Net	173,633	176,356
Other Assets	13,217	13,824
Total Assets	765,608	785,074
Current Liabilities
Current portion of long-term debt	3,038	3,042
Accounts payable	50,481	52,578
Accrued liabilities	40,048	52,716
Total Current Liabilities	93,567	108,336
Long-Term Debt, Less Current Portion	355,196	362,702
Deferred Income Taxes	66,386	67,808
Other Long-Term Liabilities	23,239	23,553
Total Liabilities	538,388	562,399
Commitments and Contingencies
Shareholders' Equity
Common stock - $0.01 par value; authorized 35,000,000 shares; issued 10,746,950 shares in 2013 and 10,738,065 shares in 2012	107	107
Treasury stock - held in treasury 143,300 shares in 2013 and 2012	(1,924)	(1,924)
Additional paid-in capital	67,141	66,475
Retained earnings	169,192	165,485
Accumulated other comprehensive loss	(7,296)	(7,468)
Total Shareholders' Equity	227,220	222,675
Total Liabilities and Shareholders' Equity	$ 765,608	$ 785,074