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Commitments and Contingencies (Tables)
9 Months Ended
Sep. 30, 2013
Commitments and Contingencies Disclosure [Abstract]  
Schedule of reconciliation of changes in product warranty liabilities

 

(Dollars in thousands)

 

Nine Months Ended

September 30,

 

 

2013

 

2012

 

Balance, January 1

 

$

20

 

$

26

 

Accruals for warranties issued

 

 

22

 

 

9

 

Settlements made (in cash or in kind)

 

 

(12)

 

 

(15)

 

Balance, end of period

 

$

30

 

$

20