INVESTMENT SECURITIES (Details 3) (USD $)	3 Months Ended				12 Months Ended			3 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 US Government Agencies Debt Securities	Sep. 30, 2011 US Government Agencies Debt Securities	Dec. 31, 2011 Mortgage backed securities	Sep. 30, 2011 Mortgage backed securities	Jun. 30, 2011 Mortgage backed securities	Mar. 31, 2012 Tennessee Commerce Bank ("TCB") item
INVESTMENT SECURITIES
Maximum percentage of holdings of securities of any one issuer, other than the U.S. Government and its agencies	10.00%				10.00%	10.00%
Sales of available for sale securities	$ 0	$ 0	$ 0	$ 0	$ 0
Gross losses on available for sale securities						0	0
Sales of securities available for sale
Number of available for securities sold													6
Amortized cost of available for sale securities sold										1,500,000	2,000,000	132,000,000	35,000,000
Pre-tax gain of available for sale securities						56,000	2,300,000			77,000	112,000	1,900,000	53,000
Pre-tax gain from accretion of unamortized discount on available for sale securities called								3,000	188,000
Amortized cost of available for sale securities called								10,000,000	24,000,000
Tax provision related to Bank's realized gains					$ 0	$ 20,000	$ 800,000