Employee Benefit Plans (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010
Employee Benefit Plans [Abstract]
Maximum percentage of total annual compensation contributed to the 401K plan by eligible participants (in hundredths)	100.00%
Company's contribution to 401K plan	$ 279		$ 279		$ 277
Salary Continuation Plan [Abstract]
Threshold period for the payment supplemental retirement income	15 years
Accrued expenses for salary continuation plan	151		197		216
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net loss	752		1,356		348
Amortization of prior service cost	66		66		73
Long term rate of return [Abstract]
Pension plan target allocation percentage of assets - equity securities (in hundredths)	65.00%
Target allocation percentage of assets fixed income securities	35.00%
Estimated future benefit payments, which reflect expected future service [Abstract]
2013	3,438
2014	934
2015	609
2016	1,272
2017	1,562
2018 - 2022	3,784
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	8,455		9,006
Long term rate of return [Abstract]
Total pension plan assets	8,455		9,006
Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	5,870		4,320
Long term rate of return [Abstract]
Total pension plan assets	5,870		4,320
Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Cash [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	462		2,802
Long term rate of return [Abstract]
Total pension plan assets	462		2,802
Cash [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	462		2,802
Long term rate of return [Abstract]
Total pension plan assets	462		2,802
Cash [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Cash [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Equity Securities US Companies [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	6,470		4,793
Long term rate of return [Abstract]
Total pension plan assets	6,470		4,793
Equity Securities US Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	6,470		4,793
Long term rate of return [Abstract]
Total pension plan assets	6,470		4,793
Equity Securities US Companies [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Equity Securities US Companies [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Equity Securities International Companies [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	112		183
Long term rate of return [Abstract]
Total pension plan assets	112		183
Equity Securities International Companies [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	112		183
Long term rate of return [Abstract]
Total pension plan assets	112		183
Equity Securities International Companies [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Equity Securities International Companies [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Equity Mutual Funds [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	1,411	[1]	1,228	[1]
Long term rate of return [Abstract]
Total pension plan assets	1,411	[1]	1,228	[1]
Equity Mutual Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	1,411	[1]	1,228	[1]
Long term rate of return [Abstract]
Total pension plan assets	1,411	[1]	1,228	[1]
Equity Mutual Funds [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[1]	0	[1]
Long term rate of return [Abstract]
Total pension plan assets	0	[1]	0	[1]
Equity Mutual Funds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[1]	0	[1]
Long term rate of return [Abstract]
Total pension plan assets	0	[1]	0	[1]
U.S Government Agencies and Corporations [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	366		510
Long term rate of return [Abstract]
Total pension plan assets	366		510
U.S Government Agencies and Corporations [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
U.S Government Agencies and Corporations [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	366		510
Long term rate of return [Abstract]
Total pension plan assets	366		510
U.S Government Agencies and Corporations [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
State and Political Subdivisions [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	435		418
Long term rate of return [Abstract]
Total pension plan assets	435		418
State and Political Subdivisions [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
State and Political Subdivisions [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	435		418
Long term rate of return [Abstract]
Total pension plan assets	435		418
State and Political Subdivisions [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0		0
Long term rate of return [Abstract]
Total pension plan assets	0		0
Corporate Bonds-Investment Grade [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	4,956	[2]	3,207	[2]
Long term rate of return [Abstract]
Total pension plan assets	4,956	[2]	3,207	[2]
Corporate Bonds-Investment Grade [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[2]	0	[2]
Long term rate of return [Abstract]
Total pension plan assets	0	[2]	0	[2]
Corporate Bonds-Investment Grade [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	4,956	[2]	3,207	[2]
Long term rate of return [Abstract]
Total pension plan assets	4,956	[2]	3,207	[2]
Corporate Bonds-Investment Grade [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[2]	0	[2]
Long term rate of return [Abstract]
Total pension plan assets	0	[2]	0	[2]
Corporate Bonds-Below Investment Grade [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	113	[3]	185	[3]
Long term rate of return [Abstract]
Total pension plan assets	113	[3]	185	[3]
Corporate Bonds-Below Investment Grade [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[3]	0	[3]
Long term rate of return [Abstract]
Total pension plan assets	0	[3]	0	[3]
Corporate Bonds-Below Investment Grade [Member] | Significant Other Observable Inputs (Level 2) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	113	[3]	185	[3]
Long term rate of return [Abstract]
Total pension plan assets	113	[3]	185	[3]
Corporate Bonds-Below Investment Grade [Member] | Significant Unobservable Inputs (Level 3) [Member]
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at end of year	0	[3]	0	[3]
Long term rate of return [Abstract]
Total pension plan assets	0	[3]	0	[3]
Pension Benefits [Member]
Change in benefit obligation [Roll Forward]
Projected benefit obligation at beginning of year	15,808		12,971		11,598
Service cost	468		435		400
Interest cost	738		704		687
Actuarial loss	1,554		2,001		958
Benefits paid	(514)		(303)		(672)
Projected benefit obligation at end of year	18,054		15,808		12,971
Change in defined benefit plan assets [Roll Forward]
Fair value of plan assets at beginning of year	13,326		8,156		7,461
Actual return on plan assets	963		432		782
Employer contribution	550		5,041		585
Benefits paid	(514)		(303)		(672)
Fair value of plan assets at end of year	14,325		13,326		8,156
Funded status at the end of the year	(3,729)		(2,482)		(4,815)
Amounts recognized in the Balance Sheet [Abstract]
Deferred tax asset	1,305		869		1,685
Other liabilities	(3,729)		(2,482)		(4,815)
Total amounts recognized in the Balance Sheet	(2,424)		(1,613)		(3,130)
Amounts recognized in accumulated other comprehensive income (loss), net [Abstract]
Net (loss)	(8,202)		(7,044)		(4,957)
Prior service cost	879		979		1,080
Deferred tax asset	2,563		2,123		1,357
Amount recognized	(4,760)		(3,942)		(2,520)
Accrued/prepaid benefit cost, net [Abstract]
Benefit obligation	(18,054)		(15,808)		(12,971)
Fair value of assets	14,325		13,326		8,156
Unrecognized net actuarial loss	8,202		7,044		4,957
Unrecognized prior service cost	(879)		(979)		(1,080)
Deferred tax asset (liability)	(1,258)		(1,254)		328
(Accrued)/Prepaid benefit cost included in other liabilities	2,336		2,329		(610)
Components of net periodic benefit cost [Abstract]
Service cost	468		435		400
Interest cost	738		704		687
Expected return on plan assets	(1,075)		(810)		(607)
Amortization of prior service cost	(101)		(101)		(101)
Amortization of net obligation at transition	0		0		(11)
Recognized net actuarial loss	508		292		246
Net periodic benefit cost	538		520		614
Other changes in plan assets and benefit obligations recognized in other comprehensive (income) loss [Abstract]
Net loss	1,157		2,087		536
Amortization of prior service cost	101		101		101
Amortization of net obligation at transition	0		0		11
Deferred income tax (benefit)	(440)		(766)		(227)
Total recognized	818		1,422		421
Total recognized in net periodic benefit cost and other comprehensive loss, net of income tax (benefit)	1,797		2,708		1,035
Weighted average assumptions at end of the year [Abstract]
Discount rate used for net periodic pension cost (in hundredths)	4.50%		5.50%		6.00%
Discount rate used for disclosure (in hundredths)	3.75%		4.50%		5.50%
Expected return on plan assets (in hundredths)	8.00%		8.00%		8.00%
Rate of compensation increase (in hundredths)	3.00%		3.00%		4.00%
Long term rate of return [Abstract]
Total pension plan assets	14,325		13,326		8,156
ESOP [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Eligible year of service	1 year
Age attained to be eligible for ESOP	21 years
Contribution expense	$ 370		$ 420		$ 350
Number of allocated shares held by ESOP (in shares)	263,033
Age of employees required to diversify allocated ESOP shares	55 years
Years of plan participation required to diversify allocated ESOP shares (in years)	10 years
Percentage of allocated ESOP shares that can be diversified (in hundredths)	50.00%

[1] This category comprises actively managed equity funds invested in large-cap and mid-cap U.S. companies.

[2] This category represents investment grade bonds of U.S. issuers from diverse industries.

[3] This category represents bonds from U.S. issuers from diverse industries that were purchased at investment grade, but which have fallen below investment grade.