Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows from Operating Activities
Net income	$ 37,284	$ 41,823	$ 31,184
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,362	11,308	11,253
Gain on sale of equity method investment	0	(11,381)	0
Gain on property insurance recoveries	0	0	(230)
Gain on sale of assets	0	0	(872)
Share-based compensation	3,099	2,574	2,402
Equity method investment (earnings) loss	0	348	(4,036)
Distributions received from equity method investee	0	7,131	3,300
Deferred income taxes, including change in valuation allowance	1,665	(3,420)	681
Other, net	0	61	0
Changes in operating assets and liabilities:
Receivables, net	(4,450)	(8,262)	4,585
Inventory	(15,620)	(14,291)	(20,106)
Prepaid expenses	862	(498)	(622)
Refundable income taxes	1,268	725	(3,390)
Accounts payable	(2,542)	9,540	(3,178)
Accounts payable to affiliate, net	0	(3,349)	1,058
Accrued expenses	551	2,278	(1,407)
Deferred credits	(586)	(827)	(424)
Accrued retirement, health, and life insurance benefits	588	(289)	(477)
Net cash provided by operating activities	33,481	33,471	19,721
Cash Flows from Investing Activities
Additions to property, plant, and equipment	(31,046)	(21,055)	(17,922)
Divestiture of equity method investment, net	0	22,832	351
Proceeds from property insurance recoveries	0	0	230
Proceeds from sale of property and other	0	0	1,209
Acquisition of George Remus®	0	0	(1,551)
Net cash provided by (used in) investing activities	(31,046)	1,777	(17,683)
Cash Flows from Financing Activities
Payment of dividends and dividend equivalents	(5,500)	(17,380)	(2,066)
Purchase of treasury stock for tax withholding on equity-based compensation	(2,324)	(4,663)	(1,518)
Loan fees incurred with borrowings	0	(377)	(114)
Principal payments on long-term debt	(372)	(358)	(2,346)
Proceeds on long-term debt	0	20,000	0
Proceeds from credit agreement - revolver	28,966	25,930	27,184
Payments on credit agreement - revolver	(21,264)	(56,885)	(22,356)
Net cash used in financing activities	(494)	(33,733)	(1,216)
Increase in cash	1,941	1,515	822
Cash, beginning of year	3,084	1,569	747
Cash, end of year	$ 5,025	$ 3,084	$ 1,569