Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,350	$ 2,679
Less loss from discontinued operations	0	(23)
Income from continuing operations	3,350	2,702
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:
Depreciation and amortization	2,055	1,957
Amortization of debt issuance costs	62	101
Provision for doubtful accounts	125	20
Amortization of deferred loss on sale-leaseback	282	170
Stock based compensation	5	34
Loss on sale of assets	2	529
Unrealized holding loss on contingent consideration	0	24
Change in fair value of derivative financial instruments	143	(89)
Deferred income taxes	1,890	1,627
Changes in assets and liabilities
Accounts receivable, including related parties	853	(420)
Unbilled gas	2,299	2,217
Natural gas inventory	3,097	2,730
Accounts payable, including related parties	(2,227)	(896)
Regulatory assets and liabilities	(498)	(1,431)
Other assets	239	297
Other liabilities	(791)	(200)
Net cash provided by operating activities	10,886	9,372
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(1,951)	(2,310)
Proceeds from sale of fixed assets	110	2
Contributions in aid of construction	588	120
Net cash used in investing activities	(1,253)	(2,188)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from lines of credit	4,650	5,800
Repayments of lines of credit	(11,450)	(4,400)
Repayments of notes payable, including related parties	0	(6,633)
Payments of capital lease obligations	(840)	(651)
Debt issuance costs	0	(23)
Dividends paid	(789)	0
Net cash used in financing activities	(8,429)	(5,907)
DISCONTINUED OPERATIONS
Operating cash flows	0	(22)
Net cash used in discontinued operations	0	(22)
NET INCREASE IN CASH AND CASH EQUIVALENTS	1,204	1,255
Cash and cash equivalents, beginning of period	6,463	2,728
CASH AND CASH EQUIVALENTS, END OF PERIOD	7,667	3,983
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest	101	925
Cash received from income tax refunds, net	6	133
NONCASH INVESTING AND FINANCING ACTIVITIES
Restricted cash released from customer deposit	0	450
Assets acquired under build-to-suit agreement	0	516
Capital expenditures included in accounts payable	62	0
Capitalized interest	$ 0	$ 136