SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3)	12 Months Ended
	Dec. 31, 2012 item
Operating Segments
Number of reportable operating segments	1
Minimum
Equity
Stock dividends rate reported by transferring the par value of the stock issued from retained earnings to common stock (as a percent)	20.00%
Maximum
Equity
Stock dividends rate reported by transferring the fair value, as of the ex-dividend date, of the stock issued from retained earnings to common stock and additional paid-in capital (as a percent)	20.00%
Core deposit
Goodwill and Other Intangible Assets
Estimated useful lives of other intangible assets	10 years
Acquired customer relationship
Goodwill and Other Intangible Assets
Estimated useful lives of other intangible assets	10 years