Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement of Comprehensive Income [Abstract]
NET LOSS AVAILABLE TO COMMON SHAREHOLDERS	$ (29,808)us-gaap_NetIncomeLoss	$ (9,943)us-gaap_NetIncomeLoss	$ (50,491)us-gaap_NetIncomeLoss
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) arising during period	6,947	(7,170)	1,649
Less: reclassification adjustment for gains included in net income	(30)	(2,071)	(88)
Other comprehensive income (loss)	6,917	(9,241)	1,561
COMPREHENSIVE LOSS	$ (22,891)us-gaap_ComprehensiveIncomeNetOfTax	$ (19,184)us-gaap_ComprehensiveIncomeNetOfTax	$ (48,930)us-gaap_ComprehensiveIncomeNetOfTax

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount after tax, before reclassification adjustments, of unrealized holding gain (loss) on available-for-sale securities.

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