INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 22,292	$ 22,082
Building materials for resale	2,018	1,645
Precast inventory, finished goods	11	0
Other	1,047	1,274
Inventory, Net	$ 25,368	$ 25,001