Fair Value of Assets and Liabilities (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Losses recognized in earnings for trust preferred securities held
Beginning balance	$ 140	$ 351
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized
Ending balance	140	351
Trapeza IX B-1
Losses recognized in earnings for trust preferred securities held
Moody’s/Fitch Rating	Ca/CC	Ca/CC
Beginning balance	140	140
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized
Ending balance	140	140
PreTSL XXIII Class C-FP
Losses recognized in earnings for trust preferred securities held
Moody’s/Fitch Rating		Ca/C
Beginning balance		211
Additional credit losses on debt securities for which other-than-temporary impairment was previously recognized
Ending balance		$ 211