Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net income	$ 7,230	$ 4,733
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation	5,135	5,225
Amortization	247	290
Amortization of loan costs	354	927
Provision for uncollectible accounts receivable	283	290
Stock-based compensation	207	237
Payment in kind interest - subordinated debt		237
Changes in operating assets and liabilities
Accounts receivable	(704)	(73)
Materials and supplies	(73)	(663)
Prepaid expenses and other assets	2,030	1,280
Accounts payable and accrued expenses	959	453
Advance billings and payments	(223)	582
Other liabilities	15	(3)
Net cash from operating activities	15,460	13,515
Cash flows used in investing activities:
Acquisition and construction of property and equipment	(5,710)	(5,951)
Net cash used in investing activities	(5,710)	(5,951)
Cash flows used in financing activities:
Loan origination costs	(37)	(77)
Principal repayment of long-term notes payable	(9,262)	(9,125)
Interest rate cap	(40)
Retirement of CoBank equity	119	164
Tax withholdings paid on behalf of employees for restricted stock units	(380)	(209)
Net cash used in financing activities	(9,600)	(9,247)
Net increase (decrease) in cash and cash equivalents	150	(1,683)
Cash and cash equivalents, beginning of period	3,570	10,538
Cash and cash equivalents, end of period	3,720	8,855
Supplemental disclosures of cash flow information:
Interest paid	4,029	6,654
Income taxes paid	2	1,802
Issuance of Class A common stock		$ 1