Summary Of Significant Accounting Policies Cash and cash equivalents (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2012
Cash and cash equivalents	$ 40,322,000	$ 40,406,000	$ 40,297,000	$ 40,315,000
Earnings expected to be repatriated during fiscal year	2,100,000
Foreign Subsidiaries [Member]
Cash and cash equivalents	$ 3,300,000