Nature Of Business And Summary Of Significant Accounting Policies Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred commission costs recorded	$ 500,000	$ 300,000
Weighted-average useful lives (years)	9 years	9 years
Net gains (losses) on foreign currency translation	$ (856,000)	$ 65,000	$ (12,000)
Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted-average useful lives (years)	1 year
Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Weighted-average useful lives (years)	15 years
Property, Plant and Equipment | Minimum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property and equipment estimated useful lives	1 year
Property, Plant and Equipment | Maximum
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Property and equipment estimated useful lives	7 years