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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Revenue:      
Wireless $ 101,188 $ 109,590 $ 119,014
Software 69,987 69,971 70,614
Total revenue 171,175 179,561 189,628
Operating expenses:      
Cost of revenue 28,418 30,649 33,851
Research and development 18,702 13,467 10,280
Service, rental and maintenance 31,502 32,734 34,121
Selling and marketing 22,823 24,768 27,446
General and administrative 47,400 42,827 44,860
Depreciation, amortization and accretion 11,624 12,963 13,970
Total operating expenses 160,469 157,408 164,528
Operating income 10,706 22,153 25,100
Interest income 719 275 16
Other income 134 543 1,182
Income before income tax (expense) benefit 11,559 22,971 26,298
Income tax (expense) benefit (26,865) (8,992) 53,948
Net (loss) income $ (15,306) $ 13,979 $ 80,246
Basic and diluted net (loss) income per common share (usd per share) $ (0.76) $ 0.68 $ 3.74
Basic and diluted weighted average common shares outstanding (shares) 20,210,260 20,586,066 21,471,041
Cash dividends declared per common share (usd per share) $ 0.5 $ 0.75 $ 0.625