ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Beginning balance	$ 10,085	$ 17,118
Discount accretion	0	(36)
Disposals	(3,711)	(6,997)
Total Covered Assets	6,374	10,085
Commercial
Business Acquisition [Line Items]
Beginning balance	7,676	13,654
Discount accretion	0	(24)
Disposals	(2,873)	(5,954)
Total Covered Assets	4,803	7,676
Consumer
Business Acquisition [Line Items]
Beginning balance	2,409	3,464
Discount accretion	0	(12)
Disposals	(838)	(1,043)
Total Covered Assets	$ 1,571	$ 2,409