PENSION AND OTHER BENEFITS - Fair value of plan assets and funded status (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Change in projected benefit obligation
Benefit obligation at beginning of year	$ 7,949	$ 6,639	$ 6,251
Actuarial loss/ (gain)	1,012	1,073	117
Service cost	404	343	349
Interest cost	358	383	361
Curtailments and settlements	(3,586)	-	-
Benefits paid	(98)	(489)	(439)
Benefit obligation at end of year	6,039	7,949	6,639
Change in plan assets
Plan assets at estimated fair value at beginning of year	6,164	5,668	5,298
Actual return on plan assets	720	97	537
Contributions by employer	129	888	272
Curtailments and settlements	(896)
Benefits paid	(98)	(489)	(439)
Fair value of plan assets at end of year	6,019	6,164	5,668
Funded status and recognized liability included in other liabilities on the balance sheet	$ (20)	$ (1,785)	$ (971)

Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

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The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.

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Amount of net gain (loss) recognized in net periodic benefit cost due to settlements and curtailments. Curtailments result from an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services. Settlements result from an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Examples of transactions that constitute a settlement include, but are not limited to, lump-sum cash payments to plan participants in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contracts to cover vested benefits.

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