Business Acquisitions (Schedule Of Estimated Fair Values Of Assets Acquired, Liabilities Assumed, and Identifiable Intangible Assets) (Details) - Germany, Switzerland, And Austria Licensee [Member] $ in Thousands	Dec. 05, 2018 USD ($)
Business Acquisition, Contingent Consideration [Line Items]
Cash acquired	$ 127
Accounts receivable	564
Inventories	80
Prepaid expenses and other current assets	45
Intangible assets	741
Property and equipment	27
Other long-term assets	11
Assets acquired	1,595
Accounts payable	(208)
Accrued liabilities	(383)
Income taxes payable	(47)
Liabilities assumed	(638)
Purchase price	$ 957