Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2017

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results for Operating Activities

	2017
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
	(amounts in thousands, except per share amounts)
Revenues	$	17,750	$	18,145	$	18,194	$	18,259	$	72,348
Net income before gain and excess insurance recovery proceeds	$	4,366	$	4,033	$	3,960	$	4,031	$	16,390
Gain on Arlington transaction	$	27,196	$	—	$	—	$	—	$	27,196
Hurricane insurance recovery proceeds in excess of damaged property write-downs	$	—	$	—	$	—	$	2,033	$	2,033
Net income	$	31,562	$	4,033	$	3,960	$	6,064	$	45,619
Total basic earnings per share	$	2.32	$	0.30	$	0.29	$	0.44	$	3.35
Total diluted earnings per share	$	2.32	$	0.30	$	0.29	$	0.44	$	3.35

	2016
	First Quarter		Second Quarter		Third Quarter		Fourth Quarter		Total
	(amounts in thousands, except per share amounts)
Revenues	$	16,226	$	16,461	$	16,801	$	17,593	$	67,081
Net income	$	4,428	$	4,523	$	3,818	$	4,446	$	17,215
Total basic earnings per share	$	0.33	$	0.34	$	0.28	$	0.33	$	1.28
Total diluted earnings per share	$	0.33	$	0.34	$	0.28	$	0.33	$	1.28