Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Consolidated Statements Of Operations [Abstract]
Revenue
General and administrative expenses	2,017	2,274
Operating loss from continuing operations	(2,017)	(2,274)
Interest income	25	45
Investment income	15
Equity in Yucaipa AEC earnings (loss) (Note 5)	1	(3)
Loss from continuing operations before income taxes	(1,976)	(2,232)
Income tax provision		(4)
Net loss from continuing operations	(1,976)	(2,236)
Loss from discontinued operations, net of tax (Note 4)		(93)
Net loss	$ (1,976)	$ (2,329)
Loss per share from continuing operations:
Loss per common share - basic and diluted	$ (0.04)	$ (0.05)
Weighted average shares outstanding - basic and diluted	50,612	51,753
Loss per share from discontinued operations:
Loss per common share - basic and diluted
Weighted average shares outstanding - basic and diluted	50,612	51,753
Net loss per share:
Loss per common share - basic and diluted	$ (0.04)	$ (0.05)
Weighted average shares outstanding - basic and diluted	50,612	51,753