OTHER REAL ESTATE OWNED (Details) (USD $)	3 Months Ended				9 Months Ended				12 Months Ended
	Sep. 30, 2012		Sep. 30, 2011		Sep. 30, 2012		Sep. 30, 2011		Dec. 31, 2011
Activity in other real estate owned [Roll Forward]
Balance at beginning of year					$ 173,805,000	[1]	$ 133,412,000		$ 133,412,000
Additions to foreclosed properties
New foreclosed properties					23,938,000		88,726,000		125,234,000
Reductions in foreclosed properties
Sales					(53,328,000)		(47,799,000)		(64,488,000)
Writedowns					(16,204,000)		(11,653,000)		(20,353,000)
Balance at end of year	128,211,000		162,686,000		128,211,000		162,686,000		173,805,000	[1]
Other real estate owned by geographical location, segment and class [Abstract]
Total	128,211,000		162,686,000		128,211,000		162,686,000		173,805,000	[1]
Foreclosed property expenses [Abstract]
Total foreclosed property expenses	8,794,000		6,116,000		27,415,000		16,963,000
Realized net losses on dispositions and holding losses on valuations of foreclosed properties	7,000,000		4,500,000		20,400,000		12,000,000
Alabama and Florida Panhandle [Member]
Reductions in foreclosed properties
Balance at end of year	22,266,000		22,213,000		22,266,000		22,213,000		26,888,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	22,266,000		22,213,000		22,266,000		22,213,000		26,888,000
Arkansas [Member]
Reductions in foreclosed properties
Balance at end of year	3,625,000	[2]	4,766,000	[2]	3,625,000	[2]	4,766,000	[2]	4,697,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	3,625,000	[2]	4,766,000	[2]	3,625,000	[2]	4,766,000	[2]	4,697,000	[2]
Mississippi [Member]
Reductions in foreclosed properties
Balance at end of year	22,719,000	[2]	27,304,000	[2]	22,719,000	[2]	27,304,000	[2]	28,372,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	22,719,000	[2]	27,304,000	[2]	22,719,000	[2]	27,304,000	[2]	28,372,000	[2]
Missouri [Member]
Reductions in foreclosed properties
Balance at end of year	1,426,000		3,429,000		1,426,000		3,429,000		2,243,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,426,000		3,429,000		1,426,000		3,429,000		2,243,000
Greater Memphis Area [Member]
Reductions in foreclosed properties
Balance at end of year	53,550,000		88,433,000		53,550,000		88,433,000		92,504,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	53,550,000		88,433,000		53,550,000		88,433,000		92,504,000
Tennessee [Member]
Reductions in foreclosed properties
Balance at end of year	17,161,000	[2]	9,903,000	[2]	17,161,000	[2]	9,903,000	[2]	12,257,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	17,161,000	[2]	9,903,000	[2]	17,161,000	[2]	9,903,000	[2]	12,257,000	[2]
Texas and Louisiana [Member]
Reductions in foreclosed properties
Balance at end of year	2,825,000		4,662,000		2,825,000		4,662,000		3,955,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,825,000		4,662,000		2,825,000		4,662,000		3,955,000
Other Geographical Areas [Member]
Reductions in foreclosed properties
Balance at end of year	4,639,000		1,976,000		4,639,000		1,976,000		2,889,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	4,639,000		1,976,000		4,639,000		1,976,000		2,889,000
Commercial and industrial segment [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	1,407,000		1,402,000		1,407,000		1,402,000		1,393,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,407,000		1,402,000		1,407,000		1,402,000		1,393,000
Commercial and industrial segment [Member] | Alabama and Florida Panhandle [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	411,000		439,000		411,000		439,000		436,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	411,000		439,000		411,000		439,000		436,000
Commercial and industrial segment [Member] | Arkansas [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	94,000	[2]	17,000	[2]	94,000	[2]	17,000	[2]	17,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	94,000	[2]	17,000	[2]	94,000	[2]	17,000	[2]	17,000	[2]
Commercial and industrial segment [Member] | Mississippi [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	105,000	[2]	0	[2]	105,000	[2]	0	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	105,000	[2]	0	[2]	105,000	[2]	0	[2]	0	[2]
Commercial and industrial segment [Member] | Missouri [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Commercial and industrial segment [Member] | Greater Memphis Area [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	797,000		946,000		797,000		946,000		940,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	797,000		946,000		797,000		946,000		940,000
Commercial and industrial segment [Member] | Tennessee [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Commercial and industrial segment [Member] | Texas and Louisiana [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Commercial and industrial segment [Member] | Other Geographical Areas [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	11,946,000		19,522,000		11,946,000		19,522,000		20,645,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	11,946,000		19,522,000		11,946,000		19,522,000		20,645,000
Real estate segment [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	216,000		686,000		216,000		686,000		651,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	216,000		686,000		216,000		686,000		651,000
Real estate segment [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	4,309,000		6,230,000		4,309,000		6,230,000		5,716,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	4,309,000		6,230,000		4,309,000		6,230,000		5,716,000
Real estate segment [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	2,683,000		7,623,000		2,683,000		7,623,000		6,344,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,683,000		7,623,000		2,683,000		7,623,000		6,344,000
Real estate segment [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	93,627,000		114,594,000		93,627,000		114,594,000		121,886,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	93,627,000		114,594,000		93,627,000		114,594,000		121,886,000
Real estate segment [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	12,440,000		9,970,000		12,440,000		9,970,000		14,987,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	12,440,000		9,970,000		12,440,000		9,970,000		14,987,000
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	2,621,000		5,368,000		2,621,000		5,368,000		3,816,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,621,000		5,368,000		2,621,000		5,368,000		3,816,000
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	876,000		951,000		876,000		951,000		899,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	876,000		951,000		876,000		951,000		899,000
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	533,000		1,093,000		533,000		1,093,000		1,022,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	533,000		1,093,000		533,000		1,093,000		1,022,000
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	16,953,000		11,355,000		16,953,000		11,355,000		19,318,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	16,953,000		11,355,000		16,953,000		11,355,000		19,318,000
Real estate segment [Member] | Alabama and Florida Panhandle [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	826,000		2,939,000		826,000		2,939,000		1,121,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	826,000		2,939,000		826,000		2,939,000		1,121,000
Real estate segment [Member] | Arkansas [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	251,000	[2]	475,000	[2]	251,000	[2]	475,000	[2]	448,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	251,000	[2]	475,000	[2]	251,000	[2]	475,000	[2]	448,000	[2]
Real estate segment [Member] | Arkansas [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	63,000	[2]	0	[2]	63,000	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	63,000	[2]	0	[2]	63,000	[2]	0	[2]
Real estate segment [Member] | Arkansas [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Real estate segment [Member] | Arkansas [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	69,000	[2]	109,000	[2]	69,000	[2]	109,000	[2]	303,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	69,000	[2]	109,000	[2]	69,000	[2]	109,000	[2]	303,000	[2]
Real estate segment [Member] | Arkansas [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	1,647,000	[2]	2,384,000	[2]	1,647,000	[2]	2,384,000	[2]	2,241,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,647,000	[2]	2,384,000	[2]	1,647,000	[2]	2,384,000	[2]	2,241,000	[2]
Real estate segment [Member] | Arkansas [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	1,548,000	[2]	1,631,000	[2]	1,548,000	[2]	1,631,000	[2]	1,605,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,548,000	[2]	1,631,000	[2]	1,548,000	[2]	1,631,000	[2]	1,605,000	[2]
Real estate segment [Member] | Mississippi [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	2,645,000	[2]	3,533,000	[2]	2,645,000	[2]	3,533,000	[2]	3,400,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,645,000	[2]	3,533,000	[2]	2,645,000	[2]	3,533,000	[2]	3,400,000	[2]
Real estate segment [Member] | Mississippi [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	216,000	[2]	155,000	[2]	216,000	[2]	155,000	[2]	51,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	216,000	[2]	155,000	[2]	216,000	[2]	155,000	[2]	51,000	[2]
Real estate segment [Member] | Mississippi [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	968,000	[2]	0	[2]	968,000	[2]	275,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	968,000	[2]	0	[2]	968,000	[2]	275,000	[2]
Real estate segment [Member] | Mississippi [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	1,510,000	[2]	2,216,000	[2]	1,510,000	[2]	2,216,000	[2]	1,972,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,510,000	[2]	2,216,000	[2]	1,510,000	[2]	2,216,000	[2]	1,972,000	[2]
Real estate segment [Member] | Mississippi [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	15,800,000	[2]	18,890,000	[2]	15,800,000	[2]	18,890,000	[2]	18,850,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	15,800,000	[2]	18,890,000	[2]	15,800,000	[2]	18,890,000	[2]	18,850,000	[2]
Real estate segment [Member] | Mississippi [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	2,219,000	[2]	1,266,000	[2]	2,219,000	[2]	1,266,000	[2]	3,604,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,219,000	[2]	1,266,000	[2]	2,219,000	[2]	1,266,000	[2]	3,604,000	[2]
Real estate segment [Member] | Missouri [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	71,000		0		71,000		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	71,000		0		71,000		0		0
Real estate segment [Member] | Missouri [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Missouri [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Missouri [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0		77,000		0		77,000		76,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		77,000		0		77,000		76,000
Real estate segment [Member] | Missouri [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	880,000		2,706,000		880,000		2,706,000		1,974,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	880,000		2,706,000		880,000		2,706,000		1,974,000
Real estate segment [Member] | Missouri [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	362,000		451,000		362,000		451,000		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	362,000		451,000		362,000		451,000		0
Real estate segment [Member] | Greater Memphis Area [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	1,350,000		5,259,000		1,350,000		5,259,000		5,199,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,350,000		5,259,000		1,350,000		5,259,000		5,199,000
Real estate segment [Member] | Greater Memphis Area [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		600,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		600,000
Real estate segment [Member] | Greater Memphis Area [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	1,130,000		4,233,000		1,130,000		4,233,000		4,542,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,130,000		4,233,000		1,130,000		4,233,000		4,542,000
Real estate segment [Member] | Greater Memphis Area [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	375,000		3,225,000		375,000		3,225,000		2,371,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	375,000		3,225,000		375,000		3,225,000		2,371,000
Real estate segment [Member] | Greater Memphis Area [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	41,732,000		70,189,000		41,732,000		70,189,000		69,822,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	41,732,000		70,189,000		41,732,000		70,189,000		69,822,000
Real estate segment [Member] | Greater Memphis Area [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	7,014,000		2,601,000		7,014,000		2,601,000		7,672,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	7,014,000		2,601,000		7,014,000		2,601,000		7,672,000
Real estate segment [Member] | Tennessee [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	634,000	[2]	2,090,000	[2]	634,000	[2]	2,090,000	[2]	4,160,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	634,000	[2]	2,090,000	[2]	634,000	[2]	2,090,000	[2]	4,160,000	[2]
Real estate segment [Member] | Tennessee [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	368,000	[2]	0	[2]	368,000	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	368,000	[2]	0	[2]	368,000	[2]	0	[2]
Real estate segment [Member] | Tennessee [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	2,303,000	[2]	0	[2]	2,303,000	[2]	0	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,303,000	[2]	0	[2]	2,303,000	[2]	0	[2]	0	[2]
Real estate segment [Member] | Tennessee [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	50,000	[2]	525,000	[2]	50,000	[2]	525,000	[2]	426,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	50,000	[2]	525,000	[2]	50,000	[2]	525,000	[2]	426,000	[2]
Real estate segment [Member] | Tennessee [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	13,929,000	[2]	6,072,000	[2]	13,929,000	[2]	6,072,000	[2]	6,918,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	13,929,000	[2]	6,072,000	[2]	13,929,000	[2]	6,072,000	[2]	6,918,000	[2]
Real estate segment [Member] | Tennessee [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	245,000	[2]	848,000	[2]	245,000	[2]	848,000	[2]	753,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	245,000	[2]	848,000	[2]	245,000	[2]	848,000	[2]	753,000	[2]
Real estate segment [Member] | Texas and Louisiana [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	290,000		821,000		290,000		821,000		733,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	290,000		821,000		290,000		821,000		733,000
Real estate segment [Member] | Texas and Louisiana [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0		100,000		0		100,000		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		100,000		0		100,000		0
Real estate segment [Member] | Texas and Louisiana [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	0		78,000		0		78,000		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		78,000		0		78,000		0
Real estate segment [Member] | Texas and Louisiana [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	146,000		378,000		146,000		378,000		174,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	146,000		378,000		146,000		378,000		174,000
Real estate segment [Member] | Texas and Louisiana [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	2,163,000		2,998,000		2,163,000		2,998,000		2,763,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	2,163,000		2,998,000		2,163,000		2,998,000		2,763,000
Real estate segment [Member] | Texas and Louisiana [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	226,000		234,000		226,000		234,000		232,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	226,000		234,000		226,000		234,000		232,000
Real estate segment [Member] | Other Geographical Areas [Member] | Consumer mortgages [Member]
Reductions in foreclosed properties
Balance at end of year	4,084,000		1,976,000		4,084,000		1,976,000		2,889,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	4,084,000		1,976,000		4,084,000		1,976,000		2,889,000
Real estate segment [Member] | Other Geographical Areas [Member] | Home equity [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Other Geographical Areas [Member] | Agricultural [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Other Geographical Areas [Member] | Commercial and industrial-owner occupied [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
Real estate segment [Member] | Other Geographical Areas [Member] | Construction, acquisition and development [Member]
Reductions in foreclosed properties
Balance at end of year	523,000		0		523,000		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	523,000		0		523,000		0		0
Real estate segment [Member] | Other Geographical Areas [Member] | Commercial Real Estate [Member]
Reductions in foreclosed properties
Balance at end of year	0		0		0		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		0		0		0		0
All other receivables [Member]
Reductions in foreclosed properties
Balance at end of year	1,583,000		2,659,000		1,583,000		2,659,000		2,183,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,583,000		2,659,000		1,583,000		2,659,000		2,183,000
All other receivables [Member] | Alabama and Florida Panhandle [Member]
Reductions in foreclosed properties
Balance at end of year	46,000		68,000		46,000		68,000		276,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	46,000		68,000		46,000		68,000		276,000
All other receivables [Member] | Arkansas [Member]
Reductions in foreclosed properties
Balance at end of year	16,000	[2]	87,000	[2]	16,000	[2]	87,000	[2]	83,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	16,000	[2]	87,000	[2]	16,000	[2]	87,000	[2]	83,000	[2]
All other receivables [Member] | Mississippi [Member]
Reductions in foreclosed properties
Balance at end of year	224,000	[2]	276,000	[2]	224,000	[2]	276,000	[2]	220,000	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	224,000	[2]	276,000	[2]	224,000	[2]	276,000	[2]	220,000	[2]
All other receivables [Member] | Missouri [Member]
Reductions in foreclosed properties
Balance at end of year	113,000		195,000		113,000		195,000		193,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	113,000		195,000		113,000		195,000		193,000
All other receivables [Member] | Greater Memphis Area [Member]
Reductions in foreclosed properties
Balance at end of year	1,152,000		1,980,000		1,152,000		1,980,000		1,358,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	1,152,000		1,980,000		1,152,000		1,980,000		1,358,000
All other receivables [Member] | Tennessee [Member]
Reductions in foreclosed properties
Balance at end of year	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
Other real estate owned by geographical location, segment and class [Abstract]
Total	0	[2]	0	[2]	0	[2]	0	[2]	0	[2]
All other receivables [Member] | Texas and Louisiana [Member]
Reductions in foreclosed properties
Balance at end of year	0		53,000		0		53,000		53,000
Other real estate owned by geographical location, segment and class [Abstract]
Total	0		53,000		0		53,000		53,000
All other receivables [Member] | Other Geographical Areas [Member]
Reductions in foreclosed properties
Balance at end of year	32,000		0		32,000		0		0
Other real estate owned by geographical location, segment and class [Abstract]
Total	$ 32,000		$ 0		$ 32,000		$ 0		$ 0

[1] Derived from audited financial statements.

[2] Excludes the Greater Memphis Area.