CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income (loss)	$ 22,286	$ (27,226)
Depreciation and amortization	1,808	1,752
Deferred income taxes	3,215	(9,312)
Equity in earnings of Kronos Worldwide, Inc.	(18,169)	(45,124)
Marketable equity securities	(14,948)	20,266
Dividends received from Kronos Worldwide, Inc.	12,678	11,974
Cash funding of benefit plans in excess of net benefit plan expense	(224)	(137)
Other, net	577	371
Change in assets and liabilities:
Accounts and other receivables, net	(3,319)	(3,414)
Inventories, net	(839)	(1,300)
Prepaid expenses and other	235	224
Accounts payable and accrued liabilities	(2,995)	43,266
Income taxes	3	12
Accounts with affiliates	784	1,799
Accrued environmental remediation and related costs	(1,410)	3,552
Other noncurrent assets and liabilities, net	19,530	16,760
Net cash provided by operating activities	19,212	13,463
Cash flows from investing activities:
Capital expenditures	(1,811)	(1,367)
Promissory notes receivable from affiliate:
Loans	(28,100)	(25,300)
Collections	22,100	25,900
Other, net	128	225
Net cash used in investing activities	(7,683)	(542)
Cash flows from financing activities -
Distributions to noncontrolling interests in subsidiary	(235)	(167)
Cash and cash equivalents and restricted cash and cash equivalents - net change from:
Operating, investing and financing activities	11,294	12,754
Balance at beginning of period	120,989	102,941
Balance at end of period	132,283	115,695
Supplemental disclosures - cash paid (received) for:
Interest	18	16
Income taxes, net	$ (232)	$ (1,747)