SECURITIES: (Details Textual) (USD $)	12 Months Ended								12 Months Ended			3 Months Ended	12 Months Ended
	Dec. 31, 2013 investment	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2013 Standard Poors Minimum	Dec. 31, 2013 Standard Poors Maximum	Dec. 31, 2013 Moody Investor Service Minimum	Dec. 31, 2013 Moody Investor Service Maximum	Dec. 31, 2013 Other-Than-Temporarily Impaired CDO cdo	Dec. 31, 2013 Other-Than-Temporarily Impaired CDO Minimum	Dec. 31, 2013 Other-Than-Temporarily Impaired CDO Maximum	Sep. 30, 2013 Collateralized debt obligations	Dec. 31, 2013 LIBOR Other-Than-Temporarily Impaired CDO
Schedule of Available-for-sale Securities [Line Items]
Securities pledged as collateral	$ 361,900,000	$ 333,100,000
Gain on sale of investments	5,000	2,000	4,000
Loss on sale of investments	5,000
Number of investment securities with an amortized cost greater than fair value (investments)	221
Number of CDO's									3
Contractual balance									25,800,000
Reduced balance									8,500,000
Interest payment received									1,300,000
Cumulative OTTI charges	14,079,000	14,983,000	15,180,000	15,070,000					14,100,000
Other comprehensive income net									1,900,000
Severity of OTTI (as a percent)										28.00%	93.00%
Base discount rate, which is subject to an additional margin									3 month LIBOR
Basis point spread on variable rate basis, minimum													1.60%
Basis point spread on variable rate basis, maximum													1.80%
Payment received												1,300,000
CDO payment receivable												200,000
Amortized Cost	920,897,000	668,615,000							606,000
Securities available-for-sale	$ 914,560,000	$ 691,000,000							$ 548,000
Credit quality indicator pricing					20.92	90.43	3.28	89.98