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Condensed Consolidated Statements of Income (Unaudited) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 30, 2018
Mar. 31, 2017
Income Statement [Abstract]    
Revenue $ 82,713 $ 77,006
Direct costs 66,874 62,777
Selling, general and administrative expenses 15,256 12,829
Operating income 583 1,400
Interest and other income 152 42
Interest and other expense 206 165
Income before income taxes 529 1,277
Provision for income taxes 115 526
Net income $ 414 $ 751
Net income per share:    
Basic $ 0.03 $ 0.05
Diluted $ 0.03 $ 0.05
Weighted average shares outstanding:    
Basic 14,687 15,296
Diluted 15,298 15,430