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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Cash flows from (used for) operating activities:    
Net income (loss) $ 7,699 $ (767)
Adjustments to reconcile net income to net cash from (used for) operating activities -    
Depreciation and amortization 4,766 4,960
Loss (gain) on disposition of property and equipment 7 (160)
Stock-based compensation 656 797
Other long-term assets (335) (1,857)
Other long-term liabilities (1,406) 367
11,387 3,340
Changes in working capital:    
Accounts receivable (38,379) (21,825)
Inventories (8,664) 16,831
Prepaid expenses and other 2,075 (62)
Accounts payable 6,771 764
Change in outstanding checks 982 (411)
Accrued payroll and other accrued liabilities 136 4,208
(37,079) (495)
Net cash from (used for) operating activities (25,692) 2,845
Cash flows from (used for) investing activities:    
Capital expenditures (2,066) (1,396)
Proceeds from disposition of property and equipment 84 160
Net cash used for investing activities (1,982) (1,236)
Cash flows from (used for) financing activities:    
Credit facility revolver borrowings 105,463 57,188
Credit facility revolver repayments (77,091) (57,775)
Proceeds from employee stock purchases 10 23
Dividends paid (219) (219)
Net cash from (used for) financing activities 28,163 (783)
Net change 489 826
Beginning balance 2,315 1,604
Ending balance 2,804 2,430
Interest paid 1,365 1,026
Income taxes paid $ 26 $ 3