LEASE LINE TO THIRD PARTY (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2011 Semi South [Member] Noncontrolling Interest [Member]	Mar. 31, 2011 Semi South [Member] Noncontrolling Interest [Member]
Capital Leases of Lessor [Abstract]
Lease line maximum borrowing capacity		$ 8.6	$ 15.5
Lease line funded amount		8.5
Lease line funded amount, less payments withheld under arrangement to finance capital equipment		3.9
Lease line funded as deposits on equipment		4.6
Future lease payments period	four to eight year
Capital Leases, Future Minimum Payments Receivable [Abstract]
2012	0.6
2013	0.6
2014	0.6
2015	0.6
2016	0.6
Thereafter	1.0
Total	$ 4.0