Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring [Table Text Block]

Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis
			Fair Value Measurements at Reporting Date Using:
	Fair Value		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Fair Value of Assets and Liabilities Measured on a Recurring Basis:
March 31, 2013
Securities Available-for Sale:
U.S. Agency Obligations	$	132,153	$	—	$	132,153	$	—
State and Municipal Obligations	104,469		—		104,469		—
Mortgage-Backed Securities - Residential	228,323		—		228,323		—
Corporate and Other Debt Securities	12,691		—		12,691		—
Mutual Funds and Equity Securities	1,139		—		1,139		—
Total Securities Available-for-Sale	$	478,775	$	—	$	478,775	$	—
December 31, 2012
Securities Available-for Sale:
U.S. Agency Obligations	$	122,457	$	—	$	122,457	$	—
State and Municipal Obligations	84,838		—		84,838		—
Mortgage-Backed Securities - Residential	261,804		—		261,804		—
Corporate and Other Debt Securities	8,451		—		8,451		—
Mutual Funds and Equity Securities	1,148		—		1,148		—
Total Securities Available-for Sale	$	478,698	$	—	$	478,698	$	—
March 31, 2012
Securities Available-for Sale:
U.S. Agency Obligations	$	65,660	$	—	$	65,660	$	—
State and Municipal Obligations	43,482		—		43,482		—
Mortgage-Backed Securities - Residential	355,382		—		355,382		—
Corporate and Other Debt Securities	828		—		828		—
Mutual Funds and Equity Securities	1,433		281		1,152		—
Total Securities Available-for Sale	$	466,785	$	281	$	466,504	$	—
Fair Value of Assets and Liabilities Measured on a Nonrecurring Basis:
March 31, 2013
Collateral Dependent Impaired Loans	$	—	$	—	$	—	$	—
Other Real Estate Owned and Repossessed Assets, Net	$	1,194	$	—	$	—	$	1,194
December 31, 2012
Collateral Dependent Impaired Loans	$	1,020	$	—	$	—	$	1,020
Other Real Estate Owned and Repossessed Assets, Net	$	1,034	$	—	$	—	$	1,034
March 31, 2012
Collateral Dependent Impaired Loans	$	486	$	—	$	—	$	486
Other Real Estate Owned and Repossessed Assets, Net	$	555	$	—	$	—	$	555

Fair Value, by Balance Sheet Grouping [Table Text Block]

Schedule of Fair Values by Balance Sheet Grouping
					Fair Value Hierarchy
	Carrying Amount		Fair Value		Level 1		Level 2		Level 3
March 31, 2013
Cash and Cash Equivalents	$	137,174	$	137,174	$	137,174	$	—	$	—
Securities Available-for-Sale	478,775		478,775		—		478,775		—
Securities Held-to-Maturity	251,456		259,562		—		259,562		—
Federal Home Loan Bank and Federal Reserve Bank Stock	4,493		4,493		4,493		—		—
Net Loans	1,150,156		1,167,063		—		—		1,167,063
Accrued Interest Receivable	6,481		6,481		6,481		—		—
Deposits	1,851,206		1,850,614		1,575,954		274,660		—
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	12,166		12,166		12,166		—		—
Federal Home Loan Bank Term Advances	30,000		31,263		—		31,263		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		20,000		—		—
Accrued Interest Payable	523		523		523		—		—
December 31, 2012
Cash and Cash Equivalents	$	48,832	$	48,832	$	48,832	$	—	$	—
Securities Available-for-Sale	478,698		478,698		—		478,698		—
Securities Held-to-Maturity	239,803		248,252		—		248,252		—
Federal Home Loan Bank and Federal Reserve Bank Stock	5,792		5,792		5,792		—		—
Net Loans	1,157,043		1,192,628		—		—		1,192,628
Accrued Interest Receivable	5,486		5,486		5,486		—		—
Deposits	1,731,155		1,732,894		1,447,882		285,012		—
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	12,678		12,678		12,678		—		—
Federal Home Loan Bank Term Advances	59,000		60,312		29,000		31,312		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		—		20,000		—
Accrued Interest Payable	584		584		584		—		—
March 31, 2012
Cash and Cash Equivalents	$	137,508	$	137,508	$	137,508	$	—	$	—
Securities Available-for-Sale	466,785		466,785		281		466,504		—
Securities Held-to-Maturity	200,607		207,779		—		207,779		—
Federal Home Loan Bank and Federal Reserve Bank Stock	4,382		4,382		4,382		—		—
Net Loans	1,122,494		1,147,014		—		—		1,147,014
Accrued Interest Receivable	6,380		6,380		6,380		—		—
Deposits	1,760,878		1,766,258		1,421,257		345,001		—
Federal Funds Purchased and Securities Sold Under Agreements to Repurchase	16,652		16,652		16,652		—		—
Federal Home Loan Bank Term Advances	30,000		31,310		—		31,310		—
Junior Subordinated Obligations Issued   to Unconsolidated Subsidiary Trusts	20,000		20,000		20,000		—		—
Accrued Interest Payable	974		974		974		—		—