Discontinued Operations (Schedule Of Discontinued Operations Balance Sheet) (Details) - USD ($) $ in Thousands	Feb. 17, 2017	Dec. 31, 2016
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	$ 179	123
Current assets of discontinued operations		123
Accounts payable		22
Accrued compensation and other liabilities		101
Current liabilities of discontinued operations		$ 123