Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Operating activities:
Net income	$ 1,501	$ 1,035
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,818	7,180
Deferred income tax, net	945	(949)
Share-based compensation	589	(136)
Gain on disposal of assets, net	(145)	(169)
Reversal of previously recorded restructuring, impairment and other costs	0	(639)
Other	139	(51)
Changes in operating assets and liabilities:
Accounts receivable	(4,942)	(1,230)
Inventories and prepaid expenses	(403)	(598)
Accounts payable and accrued liabilities	754	9,734
Insurance and claims accruals	1,418	1,369
Other long-term assets and liabilities	(710)	61
Net cash provided by operating activities	7,964	15,607
Investing activities:
Acquisition of Davis Transfer Company (net of cash)	(305)	0
Capital expenditures	(17,041)	(307)
Proceeds from sale of property and equipment	5,858	1,308
Net cash (used in) provided by investing activities	(11,488)	1,001
Financing activities:
Borrowings under long-term debt	12,050	5,878
Payments on long-term debt	(6,235)	(16,138)
Payments on finance lease obligations	(3,110)	(6,373)
Net change in bank drafts payable	486	0
Net payments for tax withholdings for vested stock-based awards	(72)	(40)
Net cash provided by (used in) financing activities	3,119	(16,673)
Decrease in cash	(405)	(65)
Cash:
Beginning of period	989	71
End of period	584	6
Supplemental disclosure of cash flow information:
Interest	1,482	834
Income taxes	0	0
Supplemental disclosure of non-cash investing activities:
Purchases of revenue equipment included in accounts payable	$ 3,214	$ 0