Summary Of Significant Accounting Policies Cash and cash equivalents (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Cash and cash equivalents	$ 46,281,000	$ 42,492,000	$ 40,322,000	$ 40,406,000
Earnings expected to be repatriated during fiscal year	2,000,000
Foreign Subsidiaries [Member]
Cash and cash equivalents	$ 3,000,000	$ 3,000,000