Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Revenues	$ 17,389	$ 17,850	$ 52,111	$ 53,385
Operating expenses
Cost of services	7,958	8,301	23,963	24,964
Selling, general and administrative expenses	2,888	2,458	7,871	7,544
Depreciation and amortization	1,982	2,181	6,071	6,694
Total operating expenses	12,828	12,940	37,905	39,202
Income from operations	4,561	4,910	14,206	14,183
Other income (expense)
Interest expense	(2,728)	(1,949)	(7,931)	(5,988)
Other income		14	624	1,060
Total other expense	(2,728)	(1,935)	(7,307)	(4,928)
Income before income tax expense	1,833	2,975	6,899	9,255
Income tax expense	(708)	(1,125)	(2,700)	(3,615)
Net income	$ 1,125	$ 1,850	$ 4,199	$ 5,640
Weighted average number of common shares outstanding:
Basic (in shares)	3,283,177	3,239,306	3,283,177	3,239,306
Diluted (in shares)	3,384,308	3,289,679	3,380,178	3,285,502
Basic net income per common share (in dollars per share)	$ 0.34	$ 0.57	$ 1.28	$ 1.74
Diluted net income per common share (in dollars per share)	$ 0.33	$ 0.56	$ 1.24	$ 1.72