CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income (loss)	$ (2,181)	$ 10,357
Depreciation and amortization	928	902
Deferred income taxes	(769)	3,039
Equity in losses (earnings) of Kronos Worldwide, Inc.	1,150	(5,605)
Dividends received from Kronos Worldwide, Inc.	5,283	5,283
Cash funding of benefit plans in excess of net benefit plan expense	(148)	(452)
Other, net	60	82
Change in assets and liabilities:
Accounts and other receivables, net	(3,094)	(3,191)
Inventories, net	627	(34)
Prepaid expenses and other	(677)	(31)
Accounts payable and accrued liabilities	(3,661)	(4,134)
Income taxes	1	7
Accounts with affiliates	160	(430)
Accrued environmental remediation and related costs	2,532	(180)
Other noncurrent assets and liabilities, net	(86)	(4,672)
Net cash provided by operating activities	125	941
Cash flows from investing activities:
Capital expenditures	(1,226)	(796)
Change in restricted cash equivalents, net	(49)	575
Proceeds from the sale of marketable securities		255
Purchase of marketable securities		(251)
Net cash used in investing activities	(1,275)	(217)
Cash flows from financing activities -
Distributions to noncontrolling interests in subsidiary	(82)	(82)
Cash and cash equivalents - net change from:
Operating, investing and financing activities	(1,232)	642
Cash and cash equivalents at beginning of period	96,462	72,560
Cash and cash equivalents at end of period	95,230	73,202
Supplemental disclosure - cash paid for:
Income taxes, net	$ 44	$ 584