Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Assets
Cash and cash equivalents	$ 3,412	$ 3,009
Accounts receivable, net	174,813	132,737
Inventories, net (includes LIFO debit of $4,837 and $5,337 as of March 31, 2018 and December 31, 2017, respectively)	319,024	275,307
Prepaid expenses and other	5,698	8,333
Assets held for sale	750	750
Total current assets	503,697	420,136
Property and equipment, at cost	384,218	376,710
Accumulated depreciation	(232,908)	(229,062)
Net property and equipment	151,310	147,648
Intangible assets, net	22,758	22,980
Other long-term assets	13,114	13,394
Total assets	690,879	604,158
Liabilities
Current portion of long-term debt		930
Accounts payable	112,518	84,034
Accrued payroll	9,782	11,999
Other accrued liabilities	14,567	14,184
Total current liabilities	136,867	111,147
Credit facility revolver	248,955	196,235
Other long-term liabilities	11,215	12,048
Deferred income taxes	12,827	12,145
Total liabilities	409,864	331,575
Shareholders' Equity
Preferred stock
Common stock	130,379	129,453
Treasury stock	(239)	(337)
Retained earnings	150,875	143,467
Total shareholders' equity	281,015	272,583
Total liabilities and shareholders' equity	$ 690,879	$ 604,158

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Name:	us-gaap_AccountsPayableCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682