Stock-Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Director	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation [Abstract]
Maximum number of common stock authorizes for issuance (in shares)	500,000
Option Shares [Abstract]
Outstanding at beginning of period (in shares)	240,517
Granted (in shares)	0
Exercised (in shares)	17,475
Forfeited (in shares)	11,795
Expired (in shares)	34,500
Outstanding at end of period (in shares)	176,747	240,517
Exercisable at end of period (in shares)	176,747
Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period (in dollars per share)	$ 24.28
Granted (in dollars per share)	$ 0
Exercised (in dollars per share)	$ 17.70
Forfeited (in dollars per share)	$ 27.64
Expired (in dollars per share)	$ 25.94
Outstanding at end of period (in dollars per share)	$ 24.39	$ 24.28
Exercisable at end of period (in dollars per share)	$ 24.39
Weighted Average Remaining Contractual Term [Abstract]
Outstanding at end of period	3 years 3 months 29 days
Exercisable at end of period	3 years 3 months 29 days
Aggregate Intrinsic Value [Abstract]
Outstanding at end of period	$ 556,000
Exercisable at end of period	556,000
Total proceeds of the in-the-money options exercised	309,000	118,000	173,000
Total intrinsic value of options exercised	75,000	33,000	56,000
Unrecognized compensation expense	0	0	16,000
Compensation expense related to stock options	0	0	63,000,000
Summarizes information related to stock options outstanding [Abstract]
Options Outstanding, Number of Outstanding Options (in shares)	176,747
Options Outstanding, Weighted-Average Remaining Contractual Life	3 years 3 months 29 days
Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 24.39
Options Exercisable, Number of Options Exercisable (in shares)	176,747
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 24.39
Weighted Average Grant Date Fair Value [Roll Forward]
Regular quarterly retainer director could receive in cash	3,000
Regular quarterly retainer if restricted stock vested	4,688
Monthly meeting fees a director could receive in cash	600
Monthly meeting fees a director could receive if restricted stock vested	750
Number of directors elected to receive stock in lieu of cash	11
Restricted Stock [Member]
Shares [Roll Forward]
Nonvested at beginning of period (in shares)	39,327
Granted (in shares)	13,599
Vested (in shares)	19,576
Forfeited (in shares)	0
Nonvested at end of period (in shares)	33,350	39,327
Weighted Average Grant Date Fair Value [Roll Forward]
Nonvested at end of period (in dollars per share)	$ 20.17
Granted (in dollars per share)	$ 20.82
Vested (in dollars per share)	$ 21.31
Forfeited (in dollars per share)	$ 0
Nonvested at end of period (in dollars per share)	$ 19.77	$ 20.17
Unrecognized compensation expense	337,000	346,000	404,000
Weighted average period for recognition of unrecognized compensation cost	1 year 2 months 12 days
Share based compensation expense	292,000	357,000	291,000
Number of shares issued (in shares)	12,711	17,908
Recognized share based compensation expense	$ 282,000	$ 381,000
Restricted Stock [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum vesting period of granted restricted stock	36 months
Restricted Stock [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum vesting period of granted restricted stock	24 months
$ 16.00 to $ 20.00 [Member]
Summarizes information related to stock options outstanding [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share)	$ 16.00
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 20.00
Options Outstanding, Number of Outstanding Options (in shares)	37,000
Options Outstanding, Weighted-Average Remaining Contractual Life	4 years 11 months 23 days
Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 16.95
Options Exercisable, Number of Options Exercisable (in shares)	37,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 16.95
$ 20.01 to $ 25.00 [Member]
Summarizes information related to stock options outstanding [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share)	$ 20.01
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 25.00
Options Outstanding, Number of Outstanding Options (in shares)	73,460
Options Outstanding, Weighted-Average Remaining Contractual Life	2 years 9 months 25 days
Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 23.52
Options Exercisable, Number of Options Exercisable (in shares)	73,460
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 23.52
$ 25.01 to $ 30.00 [Member]
Summarizes information related to stock options outstanding [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share)	$ 25.01
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 30.00
Options Outstanding, Number of Outstanding Options (in shares)	23,925
Options Outstanding, Weighted-Average Remaining Contractual Life	4 years 6 months 18 days
Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 25.81
Options Exercisable, Number of Options Exercisable (in shares)	23,925
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 25.81
$ 30.01 to $ 41.67 [Member]
Summarizes information related to stock options outstanding [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share)	$ 30.01
Range of Exercise Prices, Upper Range Limit (in dollars per share)	$ 41.67
Options Outstanding, Number of Outstanding Options (in shares)	42,362
Options Outstanding, Weighted-Average Remaining Contractual Life	2 years 1 month 6 days
Options Outstanding, Weighted-Average Exercise Price (in dollars per share)	$ 31.59
Options Exercisable, Number of Options Exercisable (in shares)	42,362
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 31.59