Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 4,157	$ 2,315
Accounts receivable, net	150,692	101,902
Inventories, net (includes LIFO debit of $6,569 as of September 30, 2017 and $8,045 as of December 31, 2016)	280,223	254,526
Prepaid expenses and other	5,510	6,197
Assets held for sale	844
Total current assets	441,426	364,940
Property and equipment, at cost	374,653	374,242
Accumulated depreciation	(226,553)	(218,476)
Net property and equipment	148,100	155,766
Intangible assets, net	23,202	23,869
Other long-term assets	12,170	11,493
Total assets	624,898	556,068
Liabilities
Current portion of long-term debt	930	1,825
Accounts payable	80,189	79,458
Accrued payroll	12,339	8,445
Other accrued liabilities	10,911	15,170
Total current liabilities	104,369	104,898
Credit facility revolver	220,409	164,599
Other long-term liabilities	11,482	10,062
Deferred income taxes	20,176	23,119
Total liabilities	356,436	302,678
Shareholders' Equity
Preferred stock
Common stock	129,490	128,619
Treasury stock	(527)	(609)
Retained earnings	139,499	125,380
Total shareholders' equity	268,462	253,390
Total liabilities and shareholders' equity	$ 624,898	$ 556,068

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.