CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ 8,762	$ (2,181)
Depreciation and amortization	933	928
Deferred income taxes	1,950	(769)
Equity in earnings of Kronos Worldwide, Inc.	(11,175)	1,150
Dividends received from Kronos Worldwide, Inc.	5,283	5,283
Cash funding of benefit plans in excess of net benefit plan expense	(26)	(148)
Other, net	16	60
Change in assets and liabilities:
Accounts and other receivables, net	(2,614)	(3,094)
Inventories, net	(381)	627
Prepaid expenses and other	(58)	(677)
Accounts payable and accrued liabilities	(3,371)	(3,299)
Income taxes	7	1
Accounts with affiliates	27	160
Accrued environmental remediation and related costs	2,605	2,532
Other noncurrent assets and liabilities, net	(2)	(86)
Net cash provided by operating activities	1,956	487
Cash flows from investing activities:
Capital expenditures	(621)	(1,226)
Promissory notes receivable from affiliate:
Loans	(14,100)
Collections	12,500
Other, net	2
Net cash used in investing activities	(2,219)	(1,226)
Cash flows from financing activities -
Distributions to noncontrolling interests in subsidiary	(83)	(82)
Cash and cash equivalents and restricted cash and cash equivalents - net change from:
Operating, investing and financing activities	(346)	(821)
Balance at beginning of period	98,242	100,981
Balance at end of period	97,896	100,160
Supplemental disclosure - cash paid for:
Interest	7
Income taxes, net	$ 210	$ 44