LOANS - Troubled debt restructurings (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015 Integer	Dec. 31, 2014 Integer
Business Activities Loans - Residential real estate
Quantity of troubled debt restructurings	1	4
Pre-modification balance	$ 51	$ 308
Post-modification balance	51	308
Business Activities Loans - Commercial real estate
Quantity of troubled debt restructurings	1	4
Pre-modification balance	297	1,076
Post-modification balance	297	1,076
Business Activities Loans - Construction of commercial
Quantity of troubled debt restructurings		1
Pre-modification balance		131
Post-modification balance		131
Business Activities Loans - Troubled debt restructurings
Quantity of troubled debt restructurings	2	9
Pre-modification balance	348	1,515
Post-modification balance	348	1,515
Business Activities Loans - Rate reduction and term extension
Quantity of troubled debt restructurings	1
Pre-modification balance	297
Post-modification balance	297
Business Activities Loans - Interest only pursuant to sale
Quantity of troubled debt restructurings		1
Pre-modification balance		24
Post-modification balance		24
Business Activities Loans - Interest only and term extension
Quantity of troubled debt restructurings		1
Pre-modification balance		48
Post-modification balance		48
Business Activities Loans - Interest only pursuant to sale and term extension
Quantity of troubled debt restructurings		1
Pre-modification balance		230
Post-modification balance		230
Business Activities Loans - Interest only
Quantity of troubled debt restructurings		1
Pre-modification balance		30
Post-modification balance		30
Business Activities Loans - Debt consolidation and term extension
Quantity of troubled debt restructurings		2
Pre-modification balance		447
Post-modification balance		447
Business Activities Loans - Debt consolidation, rate reduction, term extension and note bifurcation
Quantity of troubled debt restructurings	1	1
Pre-modification balance	51	399
Post-modification balance	51	399
Business Activities Loans - Term extension
Quantity of troubled debt restructurings		2
Pre-modification balance		337
Post-modification balance		337
Acquired Loans - Commercial real estate
Quantity of troubled debt restructurings		1
Pre-modification balance		571
Post-modification balance		571
Acquired Loans - Troubled debt restructurings
Quantity of troubled debt restructurings		1
Pre-modification balance		571
Post-modification balance		571
Acquired Loans - Rate reduction
Quantity of troubled debt restructurings		1
Pre-modification balance		571
Post-modification balance		$ 571