Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents	$ 4,126	$ 2,315
Accounts receivable, net	158,202	101,902
Inventories, net (includes LIFO debit of $7,269 as of June 30, 2017 and $8,045 as of December 31, 2016)	262,740	254,526
Prepaid expenses and other	6,345	6,197
Assets held for sale	844
Total current assets	432,257	364,940
Property and equipment, at cost	375,808	374,242
Accumulated depreciation	(225,141)	(218,476)
Net property and equipment	150,667	155,766
Intangible assets, net	23,424	23,869
Other long-term assets	11,861	11,493
Total assets	618,209	556,068
Liabilities
Current portion of long-term debt	930	1,825
Accounts payable	83,834	79,458
Accrued payroll	12,292	8,445
Other accrued liabilities	11,654	15,170
Total current liabilities	108,710	104,898
Credit facility revolver	210,728	164,599
Other long-term liabilities	10,781	10,062
Deferred income taxes	21,728	23,119
Total liabilities	351,947	302,678
Shareholders' Equity
Preferred stock
Common stock	129,392	128,619
Treasury stock	(568)	(609)
Retained earnings	137,438	125,380
Total shareholders' equity	266,262	253,390
Total liabilities and shareholders' equity	$ 618,209	$ 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.