ACQUISITIONS AND FDIC INDEMNIFICATION ASSET: (Details 2) (USD $) In Thousands, unless otherwise specified	12 Months Ended		54 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2013
FDIC Indemnification Asset [Roll Forward]
Beginning balance	$ 1,055	$ 2,632
Accretion	0	0
Net changes in losses and expenses added	(79)	(1,225)
Reimbursements from the FDIC	(1,050)	(352)	(24,200)
TOTAL	$ (74)	$ 1,055	$ 1,055