LOANS AND LEASES, Impaired (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	$ 105,492,000		$ 105,492,000		$ 156,728,000
Unpaid Balance of Impaired Loans	144,408,000		144,408,000		206,072,000
Related Allowance for Credit Losses	7,965,000		7,965,000		10,541,000
Average Recorded Investment	117,621,000		132,135,000		196,921,000
Interest Income Recognized		180,000		411,000	1,550,000
Impaired loans that were characterized as troubled debt restructurings	27,700,000		27,700,000		47,300,000
Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	34,531,000		34,531,000		61,335,000
Unpaid Balance of Impaired Loans	50,629,000		50,629,000		85,588,000
Related Allowance for Credit Losses	3,373,000		3,373,000		4,350,000
Average Recorded Investment	40,372,000		46,075,000		99,667,000
Interest Income Recognized	47,000		125,000		701,000
Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans
Unpaid Balance of Impaired Loans
Related Allowance for Credit Losses
Average Recorded Investment
Interest Income Recognized
Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	5,463,000		5,463,000		9,605,000
Unpaid Balance of Impaired Loans	8,688,000		8,688,000		15,061,000
Related Allowance for Credit Losses	93,000		93,000		290,000
Average Recorded Investment	6,734,000		7,191,000		12,164,000
Interest Income Recognized	12,000		23,000		82,000
Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	761,000		761,000		1,117,000
Unpaid Balance of Impaired Loans	806,000		806,000		1,335,000
Average Recorded Investment	818,000		934,000		692,000
Interest Income Recognized			1,000		5,000
Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	2,737,000		2,737,000		5,714,000
Unpaid Balance of Impaired Loans	3,075,000		3,075,000		6,646,000
Average Recorded Investment	2,877,000		3,814,000		4,840,000
Interest Income Recognized			10,000		66,000
Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	12,108,000		12,108,000		15,464,000
Unpaid Balance of Impaired Loans	13,487,000		13,487,000		17,746,000
Related Allowance for Credit Losses	225,000		225,000		563,000
Average Recorded Investment	12,100,000		12,566,000		21,351,000
Interest Income Recognized	20,000		36,000		137,000
Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	13,462,000		13,462,000		29,435,000
Unpaid Balance of Impaired Loans	24,573,000		24,573,000		44,800,000
Related Allowance for Credit Losses	3,055,000		3,055,000		3,497,000
Average Recorded Investment	17,843,000		21,570,000		60,620,000
Interest Income Recognized	15,000		55,000		411,000
Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,142,000		3,142,000		4,845,000
Unpaid Balance of Impaired Loans	3,739,000		3,739,000		6,457,000
Related Allowance for Credit Losses	284,000		284,000		1,241,000
Average Recorded Investment	3,655,000		3,880,000		8,147,000
Interest Income Recognized		3,000		4,000	50,000
Real estate segment [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	13,636,000		13,636,000		15,107,000
Unpaid Balance of Impaired Loans	17,833,000		17,833,000		19,378,000
Related Allowance for Credit Losses	525,000		525,000		1,103,000
Average Recorded Investment	13,987,000		14,707,000		22,085,000
Interest Income Recognized		23,000		41,000	165,000
Real estate segment [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,780,000		1,780,000		1,380,000
Unpaid Balance of Impaired Loans	1,924,000		1,924,000		1,524,000
Related Allowance for Credit Losses	32,000		32,000		111,000
Average Recorded Investment	2,012,000		1,890,000		1,427,000
Interest Income Recognized		3,000		6,000	11,000
Real estate segment [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,758,000		3,758,000		5,382,000
Unpaid Balance of Impaired Loans	4,355,000		4,355,000		7,239,000
Related Allowance for Credit Losses	116,000		116,000		92,000
Average Recorded Investment	4,153,000		4,542,000		4,995,000
Interest Income Recognized		1,000		5,000	20,000
Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	12,471,000		12,471,000		16,720,000
Unpaid Balance of Impaired Loans	15,268,000		15,268,000		21,288,000
Related Allowance for Credit Losses	1,268,000		1,268,000		864,000
Average Recorded Investment	12,708,000		14,659,000		22,651,000
Interest Income Recognized		35,000		72,000	188,000
Real estate segment [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	34,531,000		34,531,000		61,335,000
Unpaid Balance of Impaired Loans	50,629,000		50,629,000		85,588,000
Related Allowance for Credit Losses	3,373,000		3,373,000		4,350,000
Average Recorded Investment	40,372,000		46,075,000		99,667,000
Interest Income Recognized		47,000		125,000	701,000
Real estate segment [Member] | Commercial real estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	35,525,000		35,525,000		50,413,000
Unpaid Balance of Impaired Loans	49,718,000		49,718,000		62,431,000
Related Allowance for Credit Losses	2,367,000		2,367,000		2,720,000
Average Recorded Investment	40,103,000		45,445,000		36,777,000
Interest Income Recognized		67,000		154,000	403,000
All other [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	649,000		649,000		1,546,000
Unpaid Balance of Impaired Loans	942,000		942,000		2,167,000
Related Allowance for Credit Losses					60,000
Average Recorded Investment	631,000		937,000		1,172,000
Interest Income Recognized		1,000		4,000	12,000
With no related allowance [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	76,537,000		76,537,000		115,729,000
Unpaid Balance of Impaired Loans	105,485,000		105,485,000		160,772,000
Average Recorded Investment	83,921,000		100,232,000		106,357,000
Interest Income Recognized		117,000		302,000	758,000
With no related allowance [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	29,753,000		29,753,000		47,982,000
Unpaid Balance of Impaired Loans	44,825,000		44,825,000		69,331,000
Average Recorded Investment	31,672,000		37,112,000		54,085,000
Interest Income Recognized	29,000		83,000		324,000
With no related allowance [Member] | Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans
Unpaid Balance of Impaired Loans
Related Allowance for Credit Losses
Average Recorded Investment
Interest Income Recognized
With no related allowance [Member] | Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	5,135,000		5,135,000		8,475,000
Unpaid Balance of Impaired Loans	8,360,000		8,360,000		13,586,000
Average Recorded Investment	6,074,000		6,610,000		8,070,000
Interest Income Recognized	9,000		20,000		53,000
With no related allowance [Member] | Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	761,000		761,000		1,117,000
Unpaid Balance of Impaired Loans	806,000		806,000		1,335,000
Average Recorded Investment	818,000		934,000		623,000
Interest Income Recognized			1,000		5,000
With no related allowance [Member] | Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	2,737,000		2,737,000		5,714,000
Unpaid Balance of Impaired Loans	3,075,000		3,075,000		6,646,000
Average Recorded Investment	2,877,000		3,042,000		3,585,000
Interest Income Recognized			1,000		51,000
With no related allowance [Member] | Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	10,902,000		10,902,000		13,753,000
Unpaid Balance of Impaired Loans	12,281,000		12,281,000		15,786,000
Average Recorded Investment	10,673,000		11,185,000		12,145,000
Interest Income Recognized	16,000		31,000		63,000
With no related allowance [Member] | Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	10,218,000		10,218,000		18,923,000
Unpaid Balance of Impaired Loans	20,303,000		20,303,000		31,978,000
Average Recorded Investment	11,230,000		15,341,000		29,662,000
Interest Income Recognized	4,000		30,000		152,000
With no related allowance [Member] | Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,142,000		3,142,000		2,557,000
Unpaid Balance of Impaired Loans	3,739,000		3,739,000		4,169,000
Average Recorded Investment	3,331,000		2,988,000		2,779,000
Interest Income Recognized		3,000		4,000	12,000
With no related allowance [Member] | Real estate segment [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	11,361,000		11,361,000		11,307,000
Unpaid Balance of Impaired Loans	15,142,000		15,142,000		15,464,000
Average Recorded Investment	9,884,000		11,101,000		11,762,000
Interest Income Recognized		16,000		32,000	77,000
With no related allowance [Member] | Real estate segment [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	843,000		843,000		934,000
Unpaid Balance of Impaired Loans	987,000		987,000		1,078,000
Average Recorded Investment	1,011,000		1,242,000		858,000
Interest Income Recognized		2,000		4,000	6,000
With no related allowance [Member] | Real estate segment [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,642,000		3,642,000		4,435,000
Unpaid Balance of Impaired Loans	4,239,000		4,239,000		6,292,000
Average Recorded Investment	3,428,000		3,995,000		3,527,000
Interest Income Recognized		1,000		5,000	8,000
With no related allowance [Member] | Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	7,758,000		7,758,000		13,018,000
Unpaid Balance of Impaired Loans	9,929,000		9,929,000		16,551,000
Average Recorded Investment	6,993,000		9,503,000		12,674,000
Interest Income Recognized		16,000		50,000	123,000
With no related allowance [Member] | Real estate segment [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	29,753,000		29,753,000		47,982,000
Unpaid Balance of Impaired Loans	44,825,000		44,825,000		69,331,000
Average Recorded Investment	31,672,000		37,112,000		54,085,000
Interest Income Recognized		29,000		83,000	324,000
With no related allowance [Member] | Real estate segment [Member] | Commercial real estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	19,389,000		19,389,000		33,952,000
Unpaid Balance of Impaired Loans	25,682,000		25,682,000		45,722,000
Average Recorded Investment	26,971,000		33,354,000		19,824,000
Interest Income Recognized		49,000		120,000	199,000
With no related allowance [Member] | All other [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	649,000		649,000		1,544,000
Unpaid Balance of Impaired Loans	942,000		942,000		2,165,000
Average Recorded Investment	631,000		937,000		848,000
Interest Income Recognized		1,000		4,000	9,000
With an allowance [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	28,954,000		28,954,000		40,999,000
Unpaid Balance of Impaired Loans	38,923,000		38,923,000		45,300,000
Related Allowance for Credit Losses	7,965,000		7,965,000		10,541,000
Average Recorded Investment	33,700,000		31,903,000		90,564,000
Interest Income Recognized		63,000		109,000	792,000
With an allowance [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	4,778,000		4,778,000		13,353,000
Unpaid Balance of Impaired Loans	5,804,000		5,804,000		16,257,000
Related Allowance for Credit Losses	3,373,000		3,373,000		4,350,000
Average Recorded Investment	8,700,000		8,963,000		45,582,000
Interest Income Recognized	18,000		42,000		377,000
With an allowance [Member] | Construction, acquisition and development [Member] | Multi-family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans
Unpaid Balance of Impaired Loans
Related Allowance for Credit Losses
Average Recorded Investment
Interest Income Recognized
With an allowance [Member] | Construction, acquisition and development [Member] | One-to-four family construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	328,000		328,000		1,130,000
Unpaid Balance of Impaired Loans	328,000		328,000		1,475,000
Related Allowance for Credit Losses	93,000		93,000		290,000
Average Recorded Investment	660,000		581,000		4,094,000
Interest Income Recognized	3,000		3,000		29,000
With an allowance [Member] | Construction, acquisition and development [Member] | Recreation and all other loans collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Average Recorded Investment					69,000
With an allowance [Member] | Construction, acquisition and development [Member] | Commercial construction collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Average Recorded Investment			772,000		1,255,000
Interest Income Recognized			9,000		15,000
With an allowance [Member] | Construction, acquisition and development [Member] | Commercial acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	1,206,000		1,206,000		1,711,000
Unpaid Balance of Impaired Loans	1,206,000		1,206,000		1,960,000
Related Allowance for Credit Losses	225,000		225,000		563,000
Average Recorded Investment	1,427,000		1,381,000		9,206,000
Interest Income Recognized	4,000		5,000		74,000
With an allowance [Member] | Construction, acquisition and development [Member] | Residential acquisition and development collateral [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	3,244,000		3,244,000		10,512,000
Unpaid Balance of Impaired Loans	4,270,000		4,270,000		12,822,000
Related Allowance for Credit Losses	3,055,000		3,055,000		3,497,000
Average Recorded Investment	6,613,000		6,229,000		30,958,000
Interest Income Recognized	11,000		25,000		259,000
With an allowance [Member] | Commercial and industrial segment [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans					2,288,000
Unpaid Balance of Impaired Loans					2,288,000
Related Allowance for Credit Losses	284,000		284,000		1,241,000
Average Recorded Investment	324,000		892,000		5,368,000
Interest Income Recognized					38,000
With an allowance [Member] | Real estate segment [Member] | Consumer mortgages [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	2,275,000		2,275,000		3,800,000
Unpaid Balance of Impaired Loans	2,691,000		2,691,000		3,914,000
Related Allowance for Credit Losses	525,000		525,000		1,103,000
Average Recorded Investment	4,103,000		3,606,000		10,323,000
Interest Income Recognized		7,000		9,000	88,000
With an allowance [Member] | Real estate segment [Member] | Home equity [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	937,000		937,000		446,000
Unpaid Balance of Impaired Loans	937,000		937,000		446,000
Related Allowance for Credit Losses	32,000		32,000		111,000
Average Recorded Investment	1,001,000		648,000		569,000
Interest Income Recognized		1,000		2,000	5,000
With an allowance [Member] | Real estate segment [Member] | Agricultural [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	116,000		116,000		947,000
Unpaid Balance of Impaired Loans	116,000		116,000		947,000
Related Allowance for Credit Losses	116,000		116,000		92,000
Average Recorded Investment	725,000		547,000		1,468,000
Interest Income Recognized					12,000
With an allowance [Member] | Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	4,713,000		4,713,000		3,702,000
Unpaid Balance of Impaired Loans	5,339,000		5,339,000		4,737,000
Related Allowance for Credit Losses	1,268,000		1,268,000		864,000
Average Recorded Investment	5,715,000		5,156,000		9,977,000
Interest Income Recognized		19,000		22,000	65,000
With an allowance [Member] | Real estate segment [Member] | Construction, acquisition and development [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	4,778,000		4,778,000		13,353,000
Unpaid Balance of Impaired Loans	5,804,000		5,804,000		16,257,000
Related Allowance for Credit Losses	3,373,000		3,373,000		4,350,000
Average Recorded Investment	8,700,000		8,963,000		45,582,000
Interest Income Recognized		18,000		42,000	377,000
With an allowance [Member] | Real estate segment [Member] | Commercial real estate [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans	16,136,000		16,136,000		16,461,000
Unpaid Balance of Impaired Loans	24,036,000		24,036,000		16,709,000
Related Allowance for Credit Losses	2,367,000		2,367,000		2,720,000
Average Recorded Investment	13,132,000		12,091,000		16,953,000
Interest Income Recognized		18,000		34,000	204,000
With an allowance [Member] | All other [Member]
Impaired loans and leases, net of unearned income [Abstract]
Recorded Investment in Impaired Loans					2,000
Unpaid Balance of Impaired Loans					2,000
Related Allowance for Credit Losses					60,000
Average Recorded Investment					324,000
Interest Income Recognized					$ 3,000