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SELECTED QUARTERLY FINANCIAL DATA (unaudited)
 12 Months Ended
Dec. 31, 2017
Selected Quarterly Financial Information [Abstract]  
SELECTED QUARTERLY FINANCIAL DATA (unaudited)
SELECTED QUARTERLY FINANCIAL DATA (unaudited)

 
 
For The Year Ended December 31, 2017
 
 
First
quarter
 
Second 
quarter
 
Third
quarter
 
Fourth 
quarter
Revenue
 
$
103,405

 
$
113,591

 
$
118,108

 
$
121,617

Gross margin
 
$
42,432

 
$
48,326

 
$
47,245

 
$
48,733

Operating income (loss)
 
$
(725
)
 
$
2,277

 
$
(101
)
 
$
(1,174
)
Income (loss) from continuing operations
 
$
(1,349
)
 
$
1,279

 
$
(832
)
 
$
(2,018
)
Income (loss) from discontinued operations
 
$
35

 
$
(53
)
 
$
(16
)
 
$
13

Net income (loss)
 
$
(1,314
)
 
$
1,226

 
$
(848
)
 
$
(2,005
)
Basic and diluted earnings (loss) per share from continuing operations
 
$
(0.04
)
 
$
0.04

 
$
(0.03
)
 
$
(0.06
)
Basic and diluted earnings (loss) per share from discontinued operations
 
$
—

 
$
—

 
$
—

 
$
—

Basic and diluted earnings (loss) per share
 
$
(0.04
)
 
$
0.04

 
$
(0.03
)
 
$
(0.06
)
Basic and diluted weighted average shares outstanding (in thousands)
 
32,161

 
32,048

 
32,151

 
32,063

Common stock equivalents and outstanding stock options excluded from the calculation of diluted earnings (loss) per share (in thousands)
 
1,089

 
1,189

 
1,189

 
1,189

 
 
 
 
 
 
 
 
 
 
 
For The Year Ended December 31, 2016
 
 
First
quarter
 
Second 
quarter
 
Third
quarter
 
Fourth 
quarter
Revenue
 
$
101,227

 
$
113,067

 
$
108,136

 
$
100,314

Gross margin
 
$
41,262

 
$
46,839

 
$
43,542

 
$
42,774

Operating income (loss)
 
$
(3,705
)
 
$
(2,425
)
 
$
(786
)
 
$
(671
)
Income (loss) from continuing operations
 
$
(3,570
)
 
$
(3,347
)
 
$
(1,908
)
 
$
(108
)
Income (loss) from discontinued operations
 
$
83

 
$
209

 
$
35

 
$
(184
)
Net income (loss)
 
$
(3,487
)
 
$
(3,138
)
 
$
(1,873
)
 
$
(292
)
Basic and diluted earnings (loss) per share from continuing operations
 
$
(0.10
)
 
$
(0.10
)
 
$
(0.06
)
 
$
—

Basic and diluted earnings (loss) per share from discontinued operations
 
$
—

 
$
0.01

 
$
—

 
$
(0.01
)
Basic and diluted earnings (loss) per share
 
$
(0.10
)
 
$
(0.09
)
 
$
(0.06
)
 
$
(0.01
)
Basic and diluted weighted average shares outstanding (in thousands)
 
34,631

 
33,252

 
33,572

 
32,227

Common stock equivalents and outstanding stock options excluded from the calculation of diluted earnings (loss) per share (in thousands)
 
1,345

 
548

 
299

 
604



Earnings (loss) per share calculations for each quarter include the weighted average effect for the quarter; therefore, the sum of quarterly earnings (loss) per share amounts may not equal year-to-date earnings (loss) per share amounts, which reflect the weighted average effect on a year-to-date basis.