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Accounts Receivable, Net (Tables)
 6 Months Ended
Jun. 30, 2018
Receivables [Abstract]  
Schedule of Accounts Receivable, Net

 

 

December 31,

 

 

June 30,

 

 

2017

 

 

2018

 

 

(In thousands)

 

Accounts receivable, net:

 

 

 

 

 

 

 

Security Products

$

9,341

 

 

$

11,680

 

Marine Components

 

1,175

 

 

 

2,151

 

Allowance for doubtful accounts

 

(70

)

 

 

(70

)

Total accounts receivable, net

$

10,446

 

 

$

13,761