LOANS AND LEASES (Details 10) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2012
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	$ 483,063	$ 517,258	$ 660,297
Real estate mortgage
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	463,554	483,118
Real estate construction
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	10,916	22,391
Commercial
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	8,047	11,157
Consumer
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	546	592
Nonclassified
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	319,160	349,252
Nonclassified | Real estate mortgage
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	310,690	339,520
Nonclassified | Real estate construction
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	4,826	4,801
Nonclassified | Commercial
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	3,559	4,814
Nonclassified | Consumer
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	85	117
Classified
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	163,903	168,006
Classified | Real estate mortgage
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	152,864	143,598
Classified | Real estate construction
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	6,090	17,590
Classified | Commercial
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	4,488	6,343
Classified | Consumer
Credit risk rating categories for covered loans by portfolio segment
Total covered loans	$ 461	$ 475