DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Estimated fair values of Corporation's financial instruments and level within fair value hierarchy (Unaudited) (Details 4) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Investment securities available for sale	$ 121,572	$ 113,770
Carrying Amount
Assets
Cash and cash equivalents	14,162	19,152
Investment securities available for sale	121,572	113,770
Loans, held for sale	563	394
Loans, net of allowance for losses	316,560	305,518
Federal Home Loan Bank stock	4,595	4,595
Interest receivable	2,324	2,292
Liabilities
Deposits	388,704	384,255
Borrowings	59,717	49,717
Interest payable	288	362
Fair Value Measurements Using Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Cash and cash equivalents	14,162	19,152
Investment securities available for sale
Loans, held for sale
Loans, net of allowance for losses
Federal Home Loan Bank stock
Interest receivable
Liabilities
Deposits
Borrowings
Interest payable
Fair Value Measurements Using Significant Other Observable Inputs (Level 2)
Assets
Cash and cash equivalents
Investment securities available for sale	120,304	112,573
Loans, held for sale	563	394
Loans, net of allowance for losses	335,763	331,543
Federal Home Loan Bank stock	4,595	4,595
Interest receivable	2,324	2,292
Liabilities
Deposits	389,830	386,068
Borrowings	54,836	45,849
Interest payable	288	362
Fair Value Measurements Using Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents
Investment securities available for sale	1,268	1,197
Loans, held for sale
Loans, net of allowance for losses
Federal Home Loan Bank stock
Interest receivable
Liabilities
Deposits
Borrowings	7,000	6,898
Interest payable