LOANS, ALLOWANCE FOR LOAN LOSSES AND CREDIT QUALITY (Details 6) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	120		172		203
Pre-Modification Outstanding Recorded Investment	$ 16,132		$ 15,688		$ 22,785
Post-Modification Outstanding Recorded Investment	16,140	[1]	15,764	[1]	22,930	[1]
Commercial and Industrial [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	18		11		11
Pre-Modification Outstanding Recorded Investment	3,372		1,165		1,286
Post-Modification Outstanding Recorded Investment	3,372	[1]	1,165	[1]	1,286	[1]
Commercial Real Estate [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	15		17		14
Pre-Modification Outstanding Recorded Investment	7,121		8,707		12,491
Post-Modification Outstanding Recorded Investment	7,121	[1]	8,707	[1]	12,491	[1]
Small Business [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	14		37		47
Pre-Modification Outstanding Recorded Investment	621		1,270		1,514
Post-Modification Outstanding Recorded Investment	621	[1]	1,270	[1]	1,514	[1]
Residential Real Estate [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	20		16		19
Pre-Modification Outstanding Recorded Investment	3,495		3,460		5,797
Post-Modification Outstanding Recorded Investment	3,499	[1]	3,536	[1]	5,938	[1]
Home Equity [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	20		2		4
Pre-Modification Outstanding Recorded Investment	1,195		101		292
Post-Modification Outstanding Recorded Investment	1,198	[1]	101	[1]	296	[1]
Consumer - Other [Member]
TROUBLED DEBT RESTRUCTURINGS:
Number of Contracts	33		89		108
Pre-Modification Outstanding Recorded Investment	328		985		1,405
Post-Modification Outstanding Recorded Investment	$ 329	[1]	$ 985	[1]	$ 1,405	[1]

[1] The post-modification balances represent the balance of the loan on the date of modification. These amounts may show an increase when modifications include a capitalization of interest.