Loans Held for Investment (Details 3) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Accretable yield on purchased credit impaired
Balance at the beginning of period	$ 3,248
Accretable yield at acquisition	3,908
Accretion	(377)
Disposals and other	(61)
Change in accretable yield	(813)
Balance at the end of period	5,905
Canyon National
Accretable yield on purchased credit impaired
Balance at the beginning of period	3,248
Accretion	(303)
Disposals and other	(53)
Change in accretable yield	(813)
Balance at the end of period	2,079
Palm Desert National
Accretable yield on purchased credit impaired
Accretable yield at acquisition	3,908
Accretion	(74)
Disposals and other	(8)
Balance at the end of period	$ 3,826