Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Warranty

	Year Ended December 31
		2013		2012
Beginning balance	$	590,000	$	634,000
Amounts charged to expense		237,000		217,000
Actual warranty costs paid		(263,000)		(261,000)
Ending balance	$	564,000	$	590,000

Components Of Accumulated Other Comprehensive Income

	December 31
		2013		2012
Minimum pension liability	$	1,796,000	$	1,759,000
Unrealized gain on available-for-sale investments		2,000		24,000
Foreign currency translation		(2,038,000)		(2,371,000)
	$	(240,000)	$	(588,000)