Accounts Receivable, Net (Tables)

12 Months Ended

Dec. 31, 2019

Receivables [Abstract]

Schedule of Accounts Receivable, Net

	December 31,			December 31,
	2018			2019
	(In thousands)
Accounts receivable, net:
Security Products	$	10,596		$	10,321
Marine Components		1,614			1,619
Allowance for doubtful accounts		(70	)		(70	)
Total accounts receivable, net	$	12,140		$	11,870