SECURITIES (Details 3) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014 item	Mar. 31, 2013	Dec. 31, 2013
Available for sale:
Less than 12 months, Fair Value	$ 425,513,000		$ 413,526,000
Less than 12 months, Unrealized losses	11,915,000		18,096,000
Greater than 12 months, Fair Value	60,003,000		40,595,000
Greater than 12 months, Unrealized losses	3,432,000		3,240,000
Held to maturity:
Less than 12 months, Fair Value	95,713,000		96,907,000
Less than 12 months, Unrealized losses	2,989,000		4,103,000
Greater than 12 months, Fair Value	18,982,000		19,136,000
Greater than 12 months, Unrealized losses	1,204,000		1,489,000
Other-Than-Temporary-Impairment
Number of general segments segregated in investment securities portfolio	2
Number of components into which the amount of impairment is split	2
Proceeds from sales of securities available for sale	198,763,000	46,553,000
Net losses realized on sale of securities available for sale	(1,100,000)
Net gains (losses) realized on sale of securities available for sale		300,000
Proceeds from calls of securities	300,000	31,700,000
Fair value of securities pledged to secure public deposits and FHLB and FRB overnight borrowings	408,500,000		397,500,000
Amount owned in FHLB, ACBB and FRB stock	10,489,000		7,034,000
U.S. GSE securities
Available for sale:
Less than 12 months, Fair Value	94,284,000		128,468,000
Less than 12 months, Unrealized losses	4,516,000		8,915,000
Greater than 12 months, Fair Value	29,326,000		23,966,000
Greater than 12 months, Unrealized losses	2,260,000		2,621,000
Held to maturity:
Less than 12 months, Fair Value	11,121,000		10,879,000
Less than 12 months, Unrealized losses	141,000		375,000
State and municipal obligations
Available for sale:
Less than 12 months, Fair Value	21,355,000		23,765,000
Less than 12 months, Unrealized losses	521,000		1,046,000
Greater than 12 months, Fair Value	982,000		966,000
Greater than 12 months, Unrealized losses	19,000		41,000
Held to maturity:
Less than 12 months, Fair Value	10,403,000		24,079,000
Less than 12 months, Unrealized losses	21,000		178,000
Greater than 12 months, Fair Value	205,000		385,000
Greater than 12 months, Unrealized losses	1,000		1,000
U.S. GSE residential mortgage-backed securities
Available for sale:
Less than 12 months, Fair Value	46,371,000		10,410,000
Less than 12 months, Unrealized losses	443,000		210,000
Held to maturity:
Less than 12 months, Fair Value	7,362,000		7,689,000
Less than 12 months, Unrealized losses	237,000		312,000
U.S. GSE residential collateralized mortgage obligations
Available for sale:
Less than 12 months, Fair Value	185,751,000		218,415,000
Less than 12 months, Unrealized losses	4,281,000		6,476,000
Greater than 12 months, Fair Value	29,695,000		12,757,000
Greater than 12 months, Unrealized losses	1,153,000		487,000
Held to maturity:
Less than 12 months, Fair Value	27,190,000		29,570,000
Less than 12 months, Unrealized losses	1,721,000		2,169,000
Greater than 12 months, Fair Value	17,779,000		17,752,000
Greater than 12 months, Unrealized losses	1,201,000		1,486,000
U.S. GSE commercial mortgage-backed securities
Available for sale:
Less than 12 months, Fair Value	2,892,000		2,834,000
Less than 12 months, Unrealized losses	169,000		242,000
Held to maturity:
Less than 12 months, Fair Value	9,874,000		9,776,000
Less than 12 months, Unrealized losses	208,000		356,000
U.S. GSE commercial collateralized mortgage obligations
Available for sale:
Less than 12 months, Fair Value	18,793,000		4,912,000
Less than 12 months, Unrealized losses	81,000		24,000
Held to maturity:
Less than 12 months, Fair Value	20,787,000		12,921,000
Less than 12 months, Unrealized losses	637,000		706,000
Non Agency commercial mortgage-backed securities
Available for sale:
Less than 12 months, Fair Value	793,000		3,578,000
Less than 12 months, Unrealized losses	24,000		80,000
Other Asset backed securities
Available for sale:
Less than 12 months, Fair Value	51,190,000		21,144,000
Less than 12 months, Unrealized losses	1,843,000		1,103,000
Greater than 12 months, Fair Value			2,906,000
Greater than 12 months, Unrealized losses			91,000
Corporate bonds
Available for sale:
Less than 12 months, Fair Value	4,084,000
Less than 12 months, Unrealized losses	37,000
Held to maturity:
Less than 12 months, Fair Value	8,976,000		1,993,000
Less than 12 months, Unrealized losses	24,000		7,000
Greater than 12 months, Fair Value	998,000		999,000
Greater than 12 months, Unrealized losses	$ 2,000		$ 2,000