CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 2,502	$ 15,726
Depreciation and amortization	950	901
Deferred income taxes	(3,278)	2,552
Equity in earnings of Kronos Worldwide, Inc.	(8,207)	(9,225)
Dividends received from Kronos Worldwide, Inc.	6,339	6,339
Marketable equity securities	12,073	(5,462)
Cash funding of benefit plans in excess of net benefit plan expense	244	9
Other, net	225	39
Change in assets and liabilities:
Accounts and other receivables, net	(3,364)	(3,244)
Inventories, net	(673)	(1,475)
Prepaid expenses and other	129	181
Accounts payable and accrued liabilities	(3,196)	(3,949)
Income taxes	15	9
Accounts with affiliates	99	559
Accrued environmental remediation and related costs	(269)	(1,194)
Other noncurrent assets and liabilities, net	(3)	(16)
Net cash provided by operating activities	3,586	1,750
Cash flows from investing activities:
Capital expenditures	(360)	(439)
Note receivable from affiliate:
Collections	18,228	11,400
Loans	(15,628)	(17,400)
Net cash provided by (used in) investing activities	2,240	(6,439)
Cash flows from financing activities:
Dividends paid	(1,950)
Distributions to noncontrolling interests in subsidiary	(168)	(117)
Net cash used in financing activities	(2,118)	(117)
Cash and cash equivalents and restricted cash and cash equivalents - net change from:
Operating, investing and financing activities	3,708	(4,806)
Balance at beginning of period	157,870	120,989
Balance at end of period	161,578	116,183
Supplemental disclosures - cash paid (received) for:
Interest	8	9
Income taxes, net	$ (9)	$ (16)