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Quarterly Financial Information (Tables)
 12 Months Ended
Dec. 31, 2017
Quarterly Financial Information [Abstract]  
Quarterly Financial Information
The following table reflects the quarterly results of operations for the years ended December 31, 2017 and 2016 (dollars in thousands, except per share data):
Fiscal Year 2017:
 
Quarter Ended
 
 
March 31, 2017
 
June 30, 2017
 
September 30, 2017
 
December 31, 2017
Operating revenues
 
$
5,750

 
$
5,996

 
$
6,564

 
$
6,812

Operating expenses
 
(3,146
)
 
(3,090
)
 
(3,645
)
 
(3,865
)
Other expenses
 
(2,431
)
 
(2,651
)
 
(3,166
)
 
(3,162
)
Net income (loss)
 
173

 
255

 
(247
)
 
(215
)
Net (income) loss attributable to non-controlling interests
 
(21
)
 
(28
)
 
26

 
26

Net income (loss) attributable to the Company
 
$
152

 
$
227

 
$
(221
)
 
$
(189
)
Earnings (loss) per common share – basic and diluted
 
$
0.01

 
$
0.02

 
$
(0.02
)
 
$
(0.01
)
Weighted average shares of common stock outstanding – basic and diluted
 
10,395,736

 
11,850,624

 
12,271,925

 
13,666,560

 
 
 
 
 
 
 
 
 
Fiscal Year 2016:
 
Quarter Ended
 
 
March 31, 2016
 
June 30, 2016
 
September 30, 2016
 
December 31, 2016
Operating revenues
 
$
3,683

 
$
4,244

 
$
4,469

 
$
4,921

Operating expenses
 
(2,283
)
 
(2,650
)
 
(2,663
)
 
(2,665
)
Other expenses
 
(1,160
)
 
(1,478
)
 
(1,771
)
 
(2,174
)
Net income
 
240

 
116

 
35

 
82

Net income attributable to non-controlling interests
 
(6
)
 
(8
)
 
(3
)
 
(8
)
Net income attributable to the Company
 
$
234

 
$
108

 
$
32

 
$
74

Earnings per common share – basic and diluted
 
$
0.02

 
$
0.01

 
$
—

 
$
0.01

Weighted average shares of common stock outstanding – basic and diluted
 
9,992,941

 
9,992,941

 
10,018,331

 
10,024,875