STOCK-BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost, net of estimated forfeitures, related to non-vested awards	$ 36,000		$ 36,000
Period for recognition of unrecognized compensation (in months)			9 months 21 days
Term of stock benefit plans (in years)			10
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares outstanding, beginning of period (in shares)			109,765
Share options granted (in shares)			0
Share options exercised (in shares)			(315)
Share options forfeited (in shares)			0
Share options expired (in shares)			(257)
Shares outstanding, end of period (in shares)	109,193		109,193
Share options exercisable, end of period (in shares)	92,071		92,071
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price per share, beginning of period (in dollars per share)			$ 24.41
Options granted, weighted average exercise price per share (in dollars per share)			$ 0
Options exercised, weighted average exercise price per share (in dollars per share)			$ 19.67
Options forfeited, weighted average exercise price per share (in dollars per share)			$ 0
Options expired, weighted average exercise price per share (in dollars per share)			$ 28.25
Weighted average exercise price per share, end of period (in dollars per share)	$ 24.42		$ 24.42
Options exercisable, weighted average exercise price per share, end of period (in dollars per share)	$ 25.32		$ 25.32
Options outstanding, weighted average remaining contractual term, end of period (in years)			2 years 1 month 6 days
Options exercisable, weighted average remaining contractual term, end of period (in years)			1 year 10 months 13 days
Options outstanding, aggregate intrinsic value, end of period	224		224
Options exercisable, aggregate intrinsic value, end of period	137		137
Options Exercised [Abstract]
Aggregate intrinsic value of options exercised			6	0
Cash receipts from options exercised			7	0
Stock-based Compensation Expense [Abstract]
Director fees	37	0	74	0
Stock grant expense	0	3	0	6
Stock option expense	7	8	14	16
Employee Stock Ownership Plan (ESOP), expense	80	56	142	115
Total stock-based compensation expense	124	67	230	137
Dividends paid to ESOP	8,000	9,000	16,000	18,000
Tax Benefit from Stock Options Exercised	$ 2,000	$ 3,000	$ 5,000	$ 5,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)			3 years
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting Period (in years)			5 years