Goodwill And Intangible Assets (Changes Intangible Assets) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			$ 10,822,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			28,000
Finite-lived intangible assets, end of year	10,850,000		10,850,000
Intangible assets accumulated amortization, beginning of year			(858,000)
Less accumulated amortization, Additions			(1,050,000)
Less accumulated amortization, Other Net Adjustments			(15,000)
Intangible assets accumulated amortization, end of year	(1,923,000)		(1,923,000)
Total intangible assets, net, beginning of year			9,964,000
Total intangible assets, Additions/Amortization			(1,050,000)
Total intangible assets, Other Net Adjustments			13,000
Total intangible assets, net, end of year	8,927,000		8,927,000
Amortization expense	158,000	284,000	471,000	795,000
Cost Of Product Revenues
Finite-lived Intangible Assets [Roll Forward]
Amortization expense	194,000	269,000	580,000	805,000
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Useful Life			10 years
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			2,982,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			0
Finite-lived intangible assets, end of year	2,982,000		2,982,000
Developed Technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Useful Life			6 years
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			3,357,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			0
Finite-lived intangible assets, end of year	3,357,000		3,357,000
In-Process Research And Development
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Useful Life			6 years
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			1,310,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			0
Finite-lived intangible assets, end of year	1,310,000		1,310,000
Trademarks And Trade Names
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Useful Life			15 years
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			2,122,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			0
Finite-lived intangible assets, end of year	2,122,000		2,122,000
Software Related To Joint Venture Entity
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, Useful Life			5 years
Finite-lived Intangible Assets [Roll Forward]
Finite-lived intangible assets, beginning of year			1,051,000
Finite-lived intangible assets, Additions			0
Finite-lived intangible assets, Other Net Adjustments			28,000
Finite-lived intangible assets, end of year	$ 1,079,000		$ 1,079,000