Quarterly report pursuant to Section 13 or 15(d)

Warranty (Schedule Of Warranty) (Details)

v2.4.0.6
Warranty (Schedule Of Warranty) (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Warranty [Abstract]    
Beginning Balance $ 590,000 $ 634,000
Amounts charged to expense 90,000 87,000
Actual warranty costs paid (123,000) (97,000)
Ending balance $ 557,000 $ 623,000