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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net income	$ 5,542	$ (5,468)	$ 16,166	$ 4,275
OTHER COMPREHENSIVE (LOSS) INCOME, NET OF TAX:
Unrealized (loss) gain on available-for-sale securities	(54)	55	(19)	16
Amortization of prior service cost and actuarial loss for retirement plan included in net periodic pension costs	169	148	508	445
TOTAL OTHER COMPREHENSIVE INCOME	115	203	489	461
COMPREHENSIVE INCOME (LOSS)	$ 5,657	$ (5,265)	$ 16,655	$ 4,736

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The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

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