Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 28, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 43,751	$ 48,814
Accounts receivable, net of allowance for doubtful accounts of $254 and $489 at June 28, 2014 and December 31, 2013, respectively	105,209	91,909
Inventories	142,201	140,507
Production cost of contracts	11,023	11,599
Deferred income taxes	11,513	10,850
Other current assets	20,602	27,085
Total Current Assets	334,299	330,764
Property and Equipment, Net	94,070	96,090
Goodwill	161,940	161,940
Intangibles, Net	160,285	165,465
Other Assets	8,660	9,940
Total Assets	759,254	764,199
Current Liabilities
Current portion of long-term debt	26	25
Accounts payable	53,749	58,111
Accrued liabilities	47,973	45,453
Total Current Liabilities	101,748	103,589
Long-Term Debt, Less Current Portion	317,664	332,677
Deferred Income Taxes	69,747	68,489
Other Long-Term Liabilities	17,456	19,750
Total Liabilities	506,615	524,505
Commitments and Contingencies (Notes 8, 10)
Shareholders’ Equity
Common stock - $0.01 par value; 35,000,000 shares authorized; 10,892,133 and 10,960,054 issued at June 28, 2014 and December 31, 2013, respectively	109	110
Treasury stock, at cost; zero and 143,300 shares at June 28, 2014 and December 31, 2013, respectively	0	(1,924)
Additional paid-in capital	70,337	70,542
Retained earnings	185,929	174,828
Accumulated other comprehensive loss	(3,736)	(3,862)
Total Shareholders’ Equity	252,639	239,694
Total Liabilities and Shareholders’ Equity	$ 759,254	$ 764,199