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Warranties
6 Months Ended
Jun. 30, 2015
Warranties Disclosure [Abstract]  
Warranties Disclosure [Text Block]

10. Warranties

Warranties are estimated and accrued at the time revenues are recorded. A rollforward of the Company’s product warranty accrual is as follows:

BeginningAdditions/Ending
BalancePayments(Credits)OtherBalance
(in thousands)
Year ended December 31, 2014$305(102)49-$252
Six months ended June 30, 2015$252(25)(73)3$157