Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash Flows from Operating Activities:
Net income	$ 2,369	$ 193
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	9,840	8,679
Loss (gain) on disposal of assets, net	86	(2)
Amortization of debt issuance costs and debt discount	350	303
Loss on extinguishment of debt		2,799
Amortization of deferred capacity revenue	(1,360)	(1,126)
Stock-based compensation	309	498
Deferred income tax expense	636	92
Charge for uncollectible accounts	(229)	(697)
Amortization of right-of-use assets	521	565
Other non-cash (income) expense, net	(33)	121
Changes in operating assets and liabilities	9,873	4,050
Net cash provided by operating activities	22,362	15,475
Cash Flows from Investing Activities:
Capital expenditures	(7,463)	(8,563)
Capitalized interest	(316)	(355)
Change in unsettled capital expenditures	(3,759)	(1,121)
Net cash used by investing activities	(11,538)	(10,039)
Cash Flows from Financing Activities:
Repayments of long-term debt	(3,240)	(171,758)
Proceeds from the issuance of long-term debt		180,000
Debt issuance costs and discounts		(2,659)
Cash paid for debt extinguishment		(1,222)
Payment of withholding taxes on stock-based compensation	(439)	(305)
Net cash (used) provided by financing activities	(3,679)	4,056
Change in cash, cash equivalents and restricted cash	7,145	9,492
Cash, cash equivalents and restricted cash, beginning of period	28,293	14,985
Cash, cash equivalents and restricted cash, end of period	35,438	24,477
Supplemental Cash Flow Data:
Interest paid	2,919	3,075
Income taxes paid, net		$ 10