STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
STATEMENTS OF COMPREHENSIVE LOSS
Income tax expense, which was offset against the income from discontinued operations	$ 941	$ 0	$ 0
Gain from sale of discontinued operations, income taxes		1,705
Income tax expense	$ (941)	$ 0	$ 0

Income tax expense or benefit attributable to Income or Loss from discontinued operations during the phase-out period.

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