Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 9,319	$ 3,009
Accounts receivable, net	175,252	132,737
Inventories, net (includes LIFO credit of $3,071 as of December 31, 2018 and LIFO debit of $5,337 as of December 31, 2017)	368,738	275,307
Prepaid expenses and other	9,460	8,333
Assets held for sale		750
Total current assets	562,769	420,136
Property and equipment, at cost	403,785	376,710
Accumulated depreciation	(244,176)	(229,062)
Net property and equipment	159,609	147,648
Goodwill	2,358
Intangible assets, net	24,914	22,980
Other long-term assets	11,090	13,394
Total assets	760,740	604,158
Liabilities
Current portion of long-term debt		930
Accounts payable	95,367	84,034
Accrued payroll	19,665	11,999
Other accrued liabilities	13,395	14,184
Total current liabilities	128,427	111,147
Credit facility revolver	302,530	196,235
Other long-term liabilities	9,327	12,048
Deferred income taxes	13,465	12,145
Total liabilities	453,749	331,575
Commitments and contingencies (Note 12)
Shareholders' Equity
Preferred stock, without par value, 5,000 shares authorized, no shares issued or outstanding
Common stock, without par value, 20,000 shares authorized, 11,008 and 10,989 shares issued and outstanding	130,778	129,453
Treasury stock, at cost, 12 and 31 shares held	(132)	(337)
Retained earnings	176,345	143,467
Total shareholders' equity	306,991	272,583
Total liabilities and shareholders' equity	$ 760,740	$ 604,158