Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net income	$ 4,199	$ 5,640
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation	5,328	5,756
Amortization	743	938
Amortization of loan costs	929	665
Loss on extinguishment of debt	155
Provision for uncollectible accounts receivable	271	350
Stock-based compensation	311	283
Payment in kind interest - subordinated debt	194
Changes in operating assets and liabilities
Accounts receivable	(194)	(577)
Material and supplies	(326)	(82)
Prepaid expenses and other assets	1,481	1,919
Accounts payable and accrued expenses	654	666
Advance billings and payments	(77)	(31)
Other liabilities	(5)	(3)
Net cash from operating activities	13,663	15,524
Cash flows used in investing activities:
Acquisition and construction of property and equipment	(4,111)	(4,568)
Net cash used in investing activities	(4,111)	(4,568)
Cash flows used in financing activities:
Loan origination costs	(5,242)	(25)
Principal repayment of long-term notes payable	(102,052)	(10,120)
Proceeds from loan refinancing	100,300
Tax withholdings paid on behalf of employees for restricted stock units	(109)
Net cash used in financing activities	(7,103)	(10,145)
Net increase in cash and cash equivalents	2,449	811
Cash and cash equivalents, beginning of period	6,884	5,082
Cash and cash equivalents, end of period	9,333	5,893
Supplemental disclosures of cash flow information:
Interest paid	6,065	5,322
Income taxes paid	1,197	1,726
Conversion of Class B common stock to Class A common stock	2
Issuance of Class A common stock	$ 1