Quarterly report pursuant to Section 13 or 15(d)

Warranty (Details)

v2.4.1.9
Warranty (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Warranty [Abstract]    
Product warranty period 5 years  
Beginning Balance $ 434us-gaap_ProductWarrantyAccrual $ 564us-gaap_ProductWarrantyAccrual
Amounts charged to expense 142us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease 12us-gaap_ProductWarrantyAccrualPreexistingIncreaseDecrease
Actual warranty costs paid (22)us-gaap_ProductWarrantyAccrualPayments (50)us-gaap_ProductWarrantyAccrualPayments
Ending balance $ 554us-gaap_ProductWarrantyAccrual $ 526us-gaap_ProductWarrantyAccrual