CONTRACT ACQUISITION COSTS (CONTRACT ACQUISITION COSTS TABLE) (DETAILS) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
CONTRACT ACQUISITION COSTS [ABSTRACT]
Contract acquisition costs, gross	$ 4,278	$ 22,639
Less: Accumulated amortization	(2,418)	(19,773)
Contract acquisition costs, net	$ 1,860	$ 2,866