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CONDENSED CONSOLIDATED STATEMENTS OF INCOME (LOSS) (UNAUDITED) - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Revenues:    
Revenues from products and services $ 83,910  
Leasing 10,407 $ 10,665
Total revenues 94,317 99,173
Cost of sales:    
Total cost of sales 69,376 73,485
Selling, general and administrative 24,544 27,547
Engineering and product development 3,617 4,418
Restructuring and other charges 2,396  
Gain on sale of assets (13) (22)
Total costs and expenses 99,920 105,450
Operating loss (5,603) (6,277)
Interest income 2,006 1,797
Interest expense (121) (2)
Loss before income taxes (3,718) (4,482)
Income tax provision 2,333 2,901
Net loss $ (6,051) $ (7,383)
Loss per common share:    
Basic (in dollars per share) $ (0.17) $ (0.20)
Diluted (in dollars per share) $ (0.17) $ (0.20)
Weighted average common shares outstanding:    
Basic (in shares) 35,559 37,729
Diluted (in shares) 35,559 37,729
Products    
Revenues:    
Revenues from products and services $ 65,434 $ 71,045
Cost of sales:    
Total cost of sales 51,544 57,343
Services    
Revenues:    
Revenues from products and services 18,476 17,463
Cost of sales:    
Total cost of sales 9,237 14,620
Leasing    
Cost of sales:    
Total cost of sales $ 8,595 $ 1,522