Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities
Net income	$ 31,184	$ 26,191	$ 23,675
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	11,253	12,382	12,325
Gain on property insurance recoveries	(230)	0	(8,290)
Loss (gain) on sale of assets	(872)	0	38
Share-based compensation	2,402	1,414	930
Excess tax benefits	0	453	463
Equity method investment earnings	(4,036)	(6,102)	(10,137)
Distribution received from equity method investee	3,300	0	4,835
Deferred income taxes, including change in valuation allowance	681	1,349	1,570
Changes in operating assets and liabilities:
Receivables, net	4,585	2,002	(4,851)
Inventory, net of assets acquired in acquisition	(20,106)	(24,260)	476
Prepaid expenses	(622)	117	(331)
Refundable income taxes	(3,390)	1,073	78
Accounts payable	(3,178)	3,653	(5,928)
Accounts payable to affiliate, net	1,058	(1,042)	2,129
Accrued expenses	(1,407)	2,351	(373)
Deferred credits	(424)	(697)	174
Accrued retirement health and life insurance benefits	(477)	(703)	(699)
Other, net	0	481	(272)
Net cash provided by operating activities	19,721	18,662	15,812
Cash Flows from Investing Activities
Additions to property and equipment	(17,922)	(30,526)	(6,953)
Proceeds from property insurance recoveries	230	0	8,450
Proceeds from sale of property and other	1,209	0	5
Acquisition of George Remus®	(1,551)	0	0
Divestiture of DMI	351	0	0
Net cash provided by (used in) investing activities	(17,683)	(30,526)	1,502
Cash Flows from Financing Activities
Payment of dividends	(2,066)	(1,087)	(907)
Purchase of treasury stock	(1,518)	(15,408)	(672)
Loan fees incurred with borrowings	(114)	(348)	(66)
Principal payments on long-term debt	(2,346)	(1,641)	(1,555)
Proceeds on long-term debt	0	2,700	0
Proceeds from credit agreement	27,184	26,092	62,146
Principal payments on credit agreement	(22,356)	(3,338)	(73,476)
Net cash provided by (used in) financing activities	(1,216)	6,970	(14,530)
Increase (decrease) in cash	822	(4,894)	2,784
Cash, beginning of year	747	5,641	2,857
Cash, end of year	$ 1,569	$ 747	$ 5,641