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Quarterly Financial Data
 12 Months Ended
Dec. 31, 2017
Quarterly Financial Data [Abstract]  
Quarterly Financial Data
Quarterly Financial Data (in thousands, except per share data) – Unaudited
2017
 
Q1
 
Q2
 
Q3
 
Q4
 
Total
Total revenue
 
$
18,902

 
$
16,218

 
$
15,913

 
$
16,660

 
$
67,693

Operating income
 
343

 
414

 
593

 
217

 
1,567

Net income (1)
 
252

 
375

 
522

 
18,702

 
19,851

Net income per share - Basic
 
0.02

 
0.03

 
0.04

 
1.46

 
1.55

Net income per share - Diluted
 
0.02

 
0.03

 
0.04

 
1.42

 
1.51

 
(1) The increase in fourth quarter net income is largely a result of the 2017 Tax Act, see Note 7.

2016
 
Q1
 
Q2
 
Q3
 
Q4
 
Total
Total revenue
 
$
21,576

 
$
17,194

 
$
16,181

 
$
16,703

 
$
71,654

Operating income
 
3,767

 
1,873

 
1,823

 
967

 
8,430

Net income
 
2,541

 
1,259

 
1,509

 
1,160

 
6,469

Net income per share - Basic
 
0.20

 
0.10

 
0.12

 
0.09

 
0.51

Net income per share - Diluted
 
0.20

 
0.10

 
0.12

 
0.09

 
0.50



Amounts may not add due to rounding differences.