CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income (loss)	$ (1,016)	$ (18,543)
Depreciation and amortization	1,889	1,802
Deferred income taxes	(534)	(17,372)
Equity in losses of Kronos Worldwide, Inc.	653	42,984
Dividends received from Kronos Worldwide, Inc.	10,566	10,566
Cash funding of benefit plans in excess of net benefit plan expense	(146)	(757)
Other, net	328	280
Change in assets and liabilities:
Accounts and other receivables, net	(3,710)	(4,220)
Inventories, net	851	632
Prepaid expenses and other	(605)	(41)
Accounts payable and accrued liabilities	(2,599)	1,618
Income taxes	(4)	(5)
Accounts with affiliates	8	(1,516)
Accrued environmental remediation and related costs	1,980	1,993
Other noncurrent assets and liabilities, net	(166)	(4,672)
Net cash provided by operating activities	7,495	12,749
Cash flows from investing activities:
Capital expenditures	(1,684)	(1,994)
Change in restricted cash equivalents, net	(51)
Proceeds from the sale of marketable securities		255
Purchase of marketable securities		(251)
Net cash used in investing activities	(1,735)	(1,990)
Cash flows from financing activities -
Distributions to noncontrolling interests in subsidiary	(166)	(164)
Cash and cash equivalents - net change from:
Operating, investing and financing activities	5,594	10,595
Cash and cash equivalents at beginning of period	96,462	72,560
Cash and cash equivalents at end of period	102,056	83,155
Supplemental disclosure - cash paid for:
Income taxes, net	$ 55	$ 1,585