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AFFILIATIONS, DISCONTINUED OPERATIONS AND RELATED PARTY TRANSACTIONS - Summarized Operating Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Loss Before Income Taxes:
Income Tax Benefits	$ 16	$ 16
Loss from Discontinued Operations — Net	$ (62)	$ (66)
Earnings (Loss) Per Common Share from Discontinued Operations - Net
Basic and Diluted (in dollars per share)	$ 0.00	$ 0.00
Sand Mining
Loss Before Income Taxes:
Loss before Income Taxes:	$ (21)	$ (40)
Fuel Oil
Loss Before Income Taxes:
Loss before Income Taxes:	$ (57)	$ (42)

Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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