Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 02, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 8,973	$ 56,466
Accounts receivable, net (allowance for credit losses of $1,487 and $1,552 at October 2, 2021 and December 31, 2020, respectively	69,805	58,025
Contract assets	182,759	154,028
Inventories	144,179	129,223
Production cost of contracts	7,630	6,971
Other current assets	7,595	5,571
Total Current Assets	420,941	410,284
Property and equipment, net of accumulated depreciation of $177,426 and $169,742 at October 2, 2021 and December 31, 2020, respectively	108,973	109,990
Operating Lease Right-of-Use Assets	17,052	16,348
Goodwill	170,830	170,830
Intangibles, Net	114,984	124,744
Deferred Income Taxes	33	33
Other Assets	4,970	5,118
Total Assets	837,783	837,347
Current Liabilities
Accounts payable	65,275	63,980
Contract liabilities	23,274	28,264
Accrued and other liabilities	35,294	40,526
Operating lease liabilities	3,365	3,132
Current portion of long-term debt	7,000	7,000
Total Current Liabilities	134,208	142,902
Long-Term Debt, Less Current Portion	291,038	311,922
Non-Current Operating Lease Liabilities	14,801	14,555
Deferred Income Taxes	18,395	16,992
Other Long-Term Liabilities	20,393	21,642
Total Liabilities	478,835	508,013
Commitments and Contingencies
Shareholders’ Equity
Common stock - $0.01 par value; 35,000,000 shares authorized; 11,922,399 and 11,728,212 shares issued and outstanding at October 2, 2021 and December 31, 2020, respectively	119	117
Additional paid-in capital	101,265	97,090
Retained earnings	266,429	241,727
Accumulated other comprehensive loss	(8,865)	(9,600)
Total Shareholders’ Equity	358,948	329,334
Total Liabilities and Shareholders’ Equity	$ 837,783	$ 837,347