Accounts and Other Receivables, Net (Tables)

6 Months Ended

Jun. 30, 2020

Receivables [Abstract]

Schedule of Accounts Notes Loans and Financing Receivable

	December 31,			June 30,
	2019			2020
	(In thousands)
Trade receivables - CompX	$	11,940		$	11,410
Other receivables		59			416
Allowance for doubtful accounts		(70	)		(70	)
Total	$	11,929		$	11,756