CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash Flows From Operating Activities
Net (loss) income	$ (2,202)	$ 10,190
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	10,650	9,865
Deferred income taxes	(2,970)	6,624
Stock compensation expense	365	604
Loss (gain) on disposal of property, plant and equipment	52	(18)
Changes in cash due to changes in operating assets and liabilities:
Accounts receivable, including amounts due to related party	(7,567)	(1,541)
Inventories	(2,470)	(6,948)
Income taxes receivable	5,350	2,628
Prepaid expenses	(297)	(2,753)
Other assets	649	1,490
Accounts payable, including amounts due to related party	6,136	1,843
Accrued liabilities	600	(1,725)
Net cash provided by operating activities	8,296	20,259
Cash Flows From Investing Activities
Purchases of property, plant and equipment	(44,104)	(74,115)
Proceeds from insurance settlement related to capital investment	51	0
Proceeds from sale of property, plant and equipment	0	21
Decrease in restricted cash	1,267	10,670
Net cash used in investing activities	(42,786)	(63,424)
Cash Flows From Financing Activities
Proceeds from economic incentive	0	1,900
Principal payments on long-term debt	(3,415)	(2,745)
Net borrowings on revolving credit line	32,939	58,627
Borrowings on short-term notes	857	0
Payments on short-term notes	(189)	0
Net proceeds from follow-on stock offering	(35)	0
Net proceeds from at-the-market stock offering	1,760	0
Overdrafts	563	0
Dividends paid to stockholders	(3,607)	(10,797)
Proceeds from the exercise of stock options	134	314
Excess tax benefit of stock options exercised	0	171
Deferred debt issuance costs	(1,188)	(105)
Net cash provided by financing activities	27,819	47,365
Net increase (decrease) in cash	(6,671)	4,200
Cash, beginning	8,750	4,361
Cash, ending	2,079	8,561
Supplemental Disclosure:
Interest paid	5,072	1,971
Income taxes refunded, net	(5,354)	6
Tax benefits realized from stock options exercised	59	211
Capital expenditures invoiced but not yet paid	$ 4,839	$ 1,464