Discontinued Operations (Schedule Of Discontinued Operations Balance Sheet) (Details) $ in Thousands	Dec. 31, 2016 USD ($)
Current assets of discontinued operations	$ 123
Current liabilities of discontinued operations	123
Discontinued Operations, Disposed of by Sale [Member] | Cardiac Diagnostic Monitoring Business [Member]
Accounts receivable, net	123
Current assets of discontinued operations	123
Accounts payable	22
Accrued compensation and other liabilities	101
Current liabilities of discontinued operations	$ 123