Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 26, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 74,555	$ 39,584
Accounts receivable, net (allowance for credit losses of $1,423 and $1,321 at September 26, 2020 and December 31, 2019, respectively	62,805	67,133
Contract assets	140,717	106,670
Inventories	127,038	112,482
Production cost of contracts	7,552	9,402
Other current assets	12,438	5,497
Total Current Assets	425,105	340,768
Property and equipment, net of accumulated depreciation of $169,292 and $162,920 at September 26, 2020 and December 31, 2019, respectively	107,003	115,216
Operating Lease Right-of-Use Assets	17,098	19,105
Goodwill	170,830	170,917
Intangibles, Net	128,019	138,362
Deferred Income Taxes	58	55
Other Assets	5,248	6,006
Total Assets	853,361	790,429
Current Liabilities
Accounts payable	65,692	82,597
Contract liabilities	26,833	14,517
Accrued and other liabilities	35,276	37,620
Operating lease liabilities	3,106	2,956
Current portion of long-term debt	7,000	7,000
Total Current Liabilities	137,907	144,690
Long-Term Debt, Less Current Portion	340,324	300,887
Non-Current Operating Lease Liabilities	15,346	17,565
Deferred Income Taxes	18,405	16,766
Other Long-Term Liabilities	21,944	17,721
Total Liabilities	533,926	497,629
Commitments and Contingencies (Notes 8, 10)
Shareholders’ Equity
Common stock - $0.01 par value; 35,000,000 shares authorized; 11,714,590 and 11,572,668 shares issued and outstanding at September 26, 2020 and December 31, 2019, respectively	117	116
Additional paid-in capital	94,783	88,399
Retained earnings	232,074	212,553
Accumulated other comprehensive loss	(7,539)	(8,268)
Total Shareholders’ Equity	319,435	292,800
Total Liabilities and Shareholders’ Equity	$ 853,361	$ 790,429