Accounts and Other Receivables, Net (Tables)

9 Months Ended

Sep. 30, 2019

Receivables [Abstract]

Schedule of Accounts Notes Loans and Financing Receivable

	December 31,			September 30,
	2018			2019
	(In thousands)
Trade receivables - CompX	$	12,210		$	13,503
Accrued insurance recoveries		266			289
Other receivables		34			75
Allowance for doubtful accounts		(70	)		(70	)
Total	$	12,440		$	13,797