FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
ASSETS:
Interest rate swap	$ 1,279,000	$ 33,000
Cash flow hedges	420,000
Available for sale securities, estimated fair value	1,094,777,000	677,348,000
LIABILITIES:
Interest rate swap	1,279,000	33,000
Cash flow hedges	5,102,000	3,562,000
Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Interest rate swap
Cash flow hedges
Available for sale securities, estimated fair value
LIABILITIES:
Interest rate swap
Cash flow hedges
Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Interest rate swap	1,279,000	33,000
Cash flow hedges	420,000
Available for sale securities, estimated fair value	1,094,777,000	677,348,000
LIABILITIES:
Interest rate swap	1,279,000	33,000
Cash flow hedges	5,102,000	3,562,000
Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Interest rate swap
Cash flow hedges
Available for sale securities, estimated fair value
LIABILITIES:
Interest rate swap
Cash flow hedges
Recurring [Member]
ASSETS:
Interest rate swap	1,279,000	33,000
Cash flow hedges	420,000
LIABILITIES:
Interest rate swap	1,279,000	33,000
Cash flow hedges	5,102,000	3,562,000
Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Interest rate swap
Cash flow hedges
LIABILITIES:
Interest rate swap
Cash flow hedges
Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Interest rate swap	1,279,000	33,000
Cash flow hedges	420,000
LIABILITIES:
Interest rate swap	1,279,000	33,000
Cash flow hedges	5,102,000	3,562,000
Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Interest rate swap
Cash flow hedges
LIABILITIES:
Interest rate swap
Cash flow hedges
US Government Agencies Debt Securities [Member]
ASSETS:
Available for sale securities, estimated fair value	3,115,000	2,153,000
US Government Agencies Debt Securities [Member] | Recurring [Member]
ASSETS:
Available for sale securities, estimated fair value	3,115,000	2,153,000
US Government Agencies Debt Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Available for sale securities, estimated fair value
US Government Agencies Debt Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Available for sale securities, estimated fair value	3,115,000	2,153,000
US Government Agencies Debt Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Available for sale securities, estimated fair value
Obligations of States and Political Subdivisions [Member]
ASSETS:
Available for sale securities, estimated fair value	432,897,000	254,830,000
Obligations of States and Political Subdivisions [Member] | Recurring [Member]
ASSETS:
Available for sale securities, estimated fair value	432,897,000	254,830,000
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Available for sale securities, estimated fair value
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Available for sale securities, estimated fair value	432,897,000	254,830,000
Obligations of States and Political Subdivisions [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Available for sale securities, estimated fair value
Corporate and Other Bonds [Member]
ASSETS:
Available for sale securities, estimated fair value	79,238,000	9,434,000
Corporate and Other Bonds [Member] | Recurring [Member]
ASSETS:
Available for sale securities, estimated fair value	79,238,000	9,434,000
Corporate and Other Bonds [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Available for sale securities, estimated fair value
Corporate and Other Bonds [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Available for sale securities, estimated fair value	79,238,000	9,434,000
Corporate and Other Bonds [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Available for sale securities, estimated fair value
Mortgage Backed Securities [Member]
ASSETS:
Available for sale securities, estimated fair value	566,201,000	407,362,000
Mortgage Backed Securities [Member] | Recurring [Member]
ASSETS:
Available for sale securities, estimated fair value	566,201,000	407,362,000
Mortgage Backed Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Available for sale securities, estimated fair value
Mortgage Backed Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Available for sale securities, estimated fair value	566,201,000	407,362,000
Mortgage Backed Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Available for sale securities, estimated fair value
Other Securities [Member]
ASSETS:
Available for sale securities, estimated fair value	13,326,000	3,569,000
Other Securities [Member] | Recurring [Member]
ASSETS:
Available for sale securities, estimated fair value	13,326,000	3,569,000
Other Securities [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Available for sale securities, estimated fair value
Other Securities [Member] | Recurring [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Available for sale securities, estimated fair value	13,326,000	3,569,000
Other Securities [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Available for sale securities, estimated fair value
Mortgage Rate Lock Commitments [Member]
ASSETS:
Derivative assets	731,000
Mortgage Rate Lock Commitments [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Derivative assets
Mortgage Rate Lock Commitments [Member] | Significant Other Observable Inputs Level 2 [Member]
ASSETS:
Derivative assets
Mortgage Rate Lock Commitments [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Derivative assets	731,000
Mortgage Rate Lock Commitments [Member] | Recurring [Member]
ASSETS:
Derivative assets	731,000
Mortgage Rate Lock Commitments [Member] | Recurring [Member] | Quoted Prices in Active Markets for Identical Assets Level 1 [Member]
ASSETS:
Derivative assets
Mortgage Rate Lock Commitments [Member] | Recurring [Member] | Significant Unobservable Inputs Level 3 [Member]
ASSETS:
Derivative assets	$ 731,000