UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS' EQUITY - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income [Member]	Total
Balances at beginning at Dec. 31, 2015		$ 47	$ 125,133	$ (109,705)		$ 15,475
Balances at beginning (in shares) at Dec. 31, 2015		4,699,956
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of restricted common stock to directors and officer		$ 3	(3)
Issuance of restricted common stock to directors and officer (in shares)		367,667
Issuance of common stock to settle liability for ESOP funding		$ 1	169			170
Issuance of common stock to settle liability for ESOP funding (in shares)		68,128
Stock-based compensation			98			98
Issuance of Series A Convertible Preferred Stock in disposition of mining segment	$ 1		1,999			2,000
Issuance of Series A Convertible Preferred Stock in disposition of mining segment (in shares)	50,000
Cash payment for fractional shares in reverse stock split			(3)			(3)
Cash payment for fractional shares in reverse stock split (in shares)		(1,245)
Unrealized gain on marketable equity securities					$ 921	921
Net loss				(15,083)		(15,083)
Balances at end at Sep. 30, 2016	$ 1	$ 51	$ 127,393	$ (124,788)	$ 921	$ 3,578
Balances at end (in shares) at Sep. 30, 2016	50,000	5,134,506