Real Estate Assets, Discontinued Operations and Assets Held for Sale (Table Illustration of Discontinued Operations in Income Statement) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Discontinued Operations
Revenues	$ 0	$ 27	$ 0	$ 32
Operating Expenses	0	4	0	(9)
Operating income	0	31	0	23
Gain on sale of properties	99	2,889	254	3,021
Discontinued Operation, Income (Loss) from Discontinued Operation	99	2,920	254	3,044
Income from discontinued operations	$ 99	$ 2,920	$ 254	$ 3,044

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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