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Selected Quarterly Financial Information
12 Months Ended
Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]  
Selected Quarterly Financial Information SELECTED QUARTERLY FINANCIAL INFORMATION
The following table summarizes selected quarterly financial information for 2018 and 2017:
 Quarter Ended
(Unaudited)Dec. 31,Sep. 29,June 30,March 31,Dec. 31,Sep. 30,July 1,April 1,
(In thousands, except for per share data)20182018201820182017201720172017
Sales$202,917 $212,674 $208,606 $179,059 $171,318 $149,636 $151,114 $152,396 
Gross Profit (sales less cost of products sold)$47,672 $46,320 $49,572 $37,132 $32,153 $32,493 $34,150 $38,317 
Impairment Loss$— $— $— $— $16,237 $— $— $— 
Income (Loss) Before Income Taxes$15,594 $15,580 $17,182 $3,926 $(9,715)$8,646 $10,569 $15,491 
Net Income (Loss)$12,485 $16,999 $14,025 $3,294 $(5,653)$6,060 $7,685 $11,587 
Basic Earnings (Loss) Per Share$0.38 $0.53 $0.43 $0.10 $(0.18)$0.19 $0.23 $0.35 
Diluted Earnings (Loss) Per Share$0.37 $0.52 $0.42 $0.10 $(0.18)$0.18 $0.22 $0.33