Subordinated Debentures, Notes And Other Borrowings (Details) (USD $)	3 Months Ended
	Mar. 31, 2015 item
Debt Instrument [Line Items]
Number of issuances of junior subordinated debentures	2
Repurchase Agreements	$ 20,300,000
State and Municipal bonds sold	20,700,000
Repurchase Agreement amount, percentage	102.00%
Subordinated Debt [Member]
Debt Instrument [Line Items]
Debt instrument, face amount	9,750,000
Maturity date	Mar. 06, 2025
Subordinated Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Variable interest rate	5.75%
Subordinated Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Variable interest rate	3.00%
Fixed Rate, First 5 Years [Member] | Subordinated Debt [Member]
Debt Instrument [Line Items]
Fixed interest rate	4.25%
Interest rate period, in years	5 years
Prime Rate [Member] | Subordinated Debt [Member]
Debt Instrument [Line Items]
Basis spread on variable rate	1.00%
DNB Capital Trust I [Member]
Debt Instrument [Line Items]
Issuance date	Jul. 20, 2001
Floating rate capital preferred securities	5,000,000
LIBOR rate, borrowing period, in months	6 months
Basis spread on variable rate	3.75%
Maximum stated interest rate range	12.00%
Principal amount, floating rate junior subordinated debentures	5,200,000
Maturity date range, start	Jul. 25, 2006
Maturity date range, end	Jul. 25, 2031
DNB Capital Trust II [Member]
Debt Instrument [Line Items]
Issuance date	Mar. 30, 2005
Floating rate capital preferred securities	4,000,000
LIBOR rate, borrowing period, in months	3 months
Basis spread on variable rate	1.77%
Fixed interest rate	6.56%
Interest rate period, in years	5 years
Principal amount, floating rate junior subordinated debentures	$ 4,100,000
Maturity date range, start	May 23, 2010
Maturity date range, end	May 23, 2035