Shareholders' Equity (Details) (USD $)	0 Months Ended		3 Months Ended	12 Months Ended					0 Months Ended				0 Months Ended		1 Months Ended	3 Months Ended					0 Months Ended			12 Months Ended					12 Months Ended
	Nov. 05, 2010	Jul. 28, 2005	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Mar. 15, 2013	Sep. 30, 2012	Dec. 12, 2008	Dec. 12, 2013 Purchase Agreement [Member]	Dec. 12, 2013 Purchase Agreement [Member] Director [Member]	Dec. 31, 2013 Series A Preferred Stock [Member]	Dec. 31, 2012 Series A Preferred Stock [Member]	Dec. 17, 2013 Series B Preferred Stock [Member]	Jun. 19, 2012 Series B Preferred Stock [Member]	Dec. 31, 2013 Series B Preferred Stock [Member]	Dec. 31, 2013 Series B Preferred Stock [Member]	Feb. 15, 2014 Series B Preferred Stock [Member]	Mar. 15, 2013 Series B Preferred Stock [Member]	Dec. 31, 2012 Series B Preferred Stock [Member]	Dec. 12, 2008 Series B Preferred Stock [Member]	Jan. 17, 2014 Series B Preferred Stock [Member] Subsequent Event [Member]	Dec. 12, 2008 Series B Preferred Stock [Member] Dividend Rate Declared, Before February 15, 2014 [Member]	Dec. 12, 2008 Series B Preferred Stock [Member] Dividend Rate Declared, After February 15, 2014 [Member]	Dec. 31, 2013 Preferred Stock [Member]	Dec. 31, 2013 Common Stock [Member]	Dec. 31, 2013 Common Stock [Member] LNBB Direct Stock Purchase and Dividend Reinvestment Plan [Member]	Dec. 31, 2012 Common Stock [Member] LNBB Direct Stock Purchase and Dividend Reinvestment Plan [Member]	Jun. 30, 2001 Common Stock [Member] LNBB Direct Stock Purchase and Dividend Reinvestment Plan [Member]	Dec. 31, 2013 Retained Earnings [Member]	Dec. 31, 2012 Retained Earnings [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized			1,000,000	1,000,000							150,000	150,000			7,689	7,689			18,880
Preferred stock, shares outstanding															7,689	7,689		9,147	18,880		7,689
Preferred stock, shares issued											0	0			7,689	7,689			18,880	25,223
Preferred stock											$ 0	$ 0			$ 7,689,000	$ 7,689,000			$ 18,880,000	$ 25,223
Preferred stock, dividend rate, percentage																						5.00%	9.00%
Preferred stock, Series B, liquidation value															$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000	$ 1,000
Number of shares by warrant								561,343
Warrant, exercise price								6.74
U.S. Department of Treasury sale of Series B Preferred Stock, shares														25,223
U.S. Department of Treasury sale of Series B Preferred Stock, price per share														$ 856.13
Dutch auction of Series B Preferred Stock, initial public offering price														$ 869.17
Common stock, par value			$ 1	$ 1	$ 1	$ 1.00
Warrant repurchased mutually agreed price							1.53
Warrant repurchased equity value							1,000
Stock repurchased during period			6,343	11,112,000																									(43,000)	163,000
Stock repurchased during period, percentage																25.00%
Common stock, issued			10,001,717	10,001,717	8,272,548	1,359,348
Share Price						$ 7.16
Preferred shares received in exchange																		9,733
Percentage of share price to per share liquidation						100.00%
Number of shares sold									367,321
Sale of Stock, Price Per Share									$ 9.9087	$ 10.30
Sale of Stock, Purchase Price									3,680,000
Stock redeemed (in shares)				11,191	6,343								9,147		1,458
Line of credit borrowings			3,000,000	3,000,000
Stock redeemed																					9,147,000
Dividends payable																					74,000
Common stock, authorized			15,000,000	15,000,000	15,000,000
Common stock, shares, outstanding			9,664,972	9,664,972	7,944,000
Stock repurchase program, percentage of outstanding common shares		5.00%
Stock repurchase program, number of shares authorized to be repurchased		332,000
Treasury stock, number of shares held			328,194	328,194	328,194,000
Treasury stock, value			$ 6,092,000	$ 6,092,000	$ 6,092,000
Percentage of market value																								50.00%	50.00%
Preferred Share Purchase Right dividend, per share	1
Ownership percentage			10.00%	10.00%
Authorized shares under the Plan																												500,000
Shares purchased under the Plan																										9,936	13,795