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QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Tables)
 12 Months Ended
Dec. 31, 2016
Schedule of quarterly financial information
The following tables set forth summary financial information for the years ended December 31, 2016 and 2015:
 
Q1
 
Q2
 
Q3
 
Q4
 
(in thousands, except per share amounts)
2016
 
 
 
 
 
 
 
Revenue
$
94,713

 
$
94,290

 
$
94,558

 
$
100,841

Operating income
11,845

 
12,715

 
14,150

 
13,402

Income from continuing operations
6,905

 
9,002

 
7,280

 
8,021

Loss from discontinued operations
(1,203
)
 
(1,150
)
 
(664
)
 
(697
)
Net income and comprehensive income
$
5,702

 
$
7,852

 
$
6,616

 
$
7,324

Income per share from continuing operations:
 
 
 
 
 
 
 
Basic
$
0.58

 
$
0.76

 
$
0.62

 
$
0.68

Diluted
$
0.54

 
$
0.71

 
$
0.57

 
$
0.63

Loss per share from discontinued operations:
 

 
 

 
 

 
 
Basic
$
(0.10
)
 
$
(0.10
)
 
$
(0.06
)
 
$
(0.06
)
Diluted
$
(0.09
)
 
$
(0.09
)
 
$
(0.05
)
 
$
(0.05
)
Net income per share:
 

 
 

 
 

 
 

Basic
$
0.48

 
$
0.67

 
$
0.56

 
$
0.62

Diluted
$
0.44

 
$
0.62

 
$
0.52

 
$
0.57

 
Q1
 
Q2
 
Q3
 
Q4
 
(in thousands, except per share amounts)
2015
 
 
 
 
 
 
 
Revenue
$
50,935

 
$
55,136

 
$
69,804

 
$
78,341

Operating income
5,718

 
6,775

 
7,773

 
8,248

Income from continuing operations
5,413

 
6,439

 
7,383

 
32,081

Loss from discontinued operations
(226
)
 
(1,717
)
 
(1,295
)
 
(31
)
Net income and comprehensive income
$
5,187

 
$
4,722

 
$
6,088

 
$
32,050

Income per share from continuing operations:
 
 
 
 
 
 
 
Basic
$
0.48

 
$
0.57

 
$
0.65

 
$
2.69

Diluted
$
0.44

 
$
0.52

 
$
0.59

 
$
2.47

Loss per share from discontinued operations:
 

 
 

 
 

 
 

Basic
$
(0.02
)
 
$
(0.15
)
 
$
(0.11
)
 
$
—

Diluted
$
(0.02
)
 
$
(0.14
)
 
$
(0.10
)
 
$
—

Net income per share:
 

 
 

 
 

 
 

Basic
$
0.46

 
$
0.41

 
$
0.53

 
$
2.69

Diluted
$
0.43

 
$
0.38

 
$
0.49

 
$
2.47