Discontinued Operations (Schedule Of Discontinued Operations Balance Sheet) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets of discontinued operations	$ 239	$ 1,205
Current liabilities of discontinued operations	393	336
Discontinued Operations, Disposed of by Sale [Member]
Accounts receivable, net	1	213
Inventories	21	818
Other current assets	217	174
Current assets of discontinued operations	239	1,205
Machinery and equipment		436
Less: Accumulated depreciation		126
Net machinery and equipment		310
Other assets, net		61
Total assets	239	1,576
Accounts payable		320
Other accrued liabilities	393	16
Current liabilities of discontinued operations	393	336
Net assets (liabilities)	$ (154)	$ 1,240