LOANS - Troubled debt restructurings (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Quantity
Commercial real estate	$ 9	$ 3
Commercial and industrial	4	2
Residential real estate	4	2
Troubled debt restructurings	17	7
Rate reduction and term extension	3	2
Rate reduction and note bifurcation		2
Debt consolidation and term extension	4	2
Rate reduction	3
Rate reduction interest only	2
Debt consolidation, rate reduction and term extension, note bifurcation	1
Refinance	1
Modification pursuant to bankruptcy	1
Seasonal interest only concession	1
Term extension	1	1
Troubled debt restructurings	17	7
Pre-modification
Commercial real estate	2,002	2,010
Commercial and industrial	1,871	305
Residential real estate	528	273
Troubled debt restructurings	4,401	2,588
Rate reduction and term extension	513	1,260
Rate reduction and note bifurcation		1,000
Debt consolidation and term extension	2,276	278
Rate reduction	727
Rate reduction interest only	625
Debt consolidation, rate reduction and term extension, note bifurcation	99
Refinance	80
Modification pursuant to bankruptcy	34
Seasonal interest only concession	26
Term extension	21	50
Troubled debt restructurings	4,401	2,588
Post-modification
Commercial real estate	2,002	2,010
Commercial and industrial	1,871	305
Residential real estate	528	273
Troubled debt restructurings	4,401	2,588
Rate reduction and term extension	513	1,260
Rate reduction and note bifurcation		1,000
Debt consolidation and term extension	2,276	278
Rate reduction	727
Rate reduction interest only	625
Debt consolidation, rate reduction and term extension, note bifurcation	99
Refinance	80
Modification pursuant to bankruptcy	34
Seasonal interest only concession	26
Term extension	21	50
Troubled debt restructurings	$ 4,401	$ 2,588