DISCONTINUED OPERATIONS (Details) (California Smith Precast Operations [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
California Smith Precast Operations [Member]
Discontinued operations included in the accompanying condensed consolidated statements of operations [Abstract]
Revenue	$ 0	$ 12,906	$ 0	$ 24,995
Depreciation, depletion and amortization ("DD&A")	8	224	16	450
Operating expenses excluding DD&A	1,306	13,041	1,441	24,797
(Loss) income from discontinued operations	(1,314)	(359)	(1,457)	(252)
(Loss) gain on settlement of assets	(4)	(4)	(230)	2
Loss from discontinued operations, before income taxes	(1,318)	(363)	(1,687)	(250)
Income tax benefit (expense)	55	1	70	(1)
Net loss from discontinued operations	$ (1,263)	$ (362)	$ (1,617)	$ (251)