Quarterly report pursuant to Section 13 or 15(d)

Warranty (Schedule Of Warranty) (Details)

v2.4.0.6
Warranty (Schedule Of Warranty) (Details) (USD $)
6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Warranty [Abstract]    
Beginning Balance $ 634,000 $ 616,000
Actual warranty costs paid (145,000) (124,000)
Amounts charged to expense 98,000 93,000
Ending balance $ 587,000 $ 585,000
Warranty liability period 5 years