Stock Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation, Stock Options Outstanding and Exercisable [Line Items]
Stock Options Outstanding (in shares)	102,450
Weighted Average Exercise Price (in dollars per share)	$ 10.35
Weighted Average Remaining Contractual Life (in years)	1 year 6 months 22 days
Aggregate intrinsic value, Outstanding	$ 254,000
Stock Options Exercisable (in shares)	99,116
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 10.39
Weighted Average Remaining Contractual Life, Exercisable (in years)	1 year 4 months 10 days
Aggregate Intrinsic Value, Exercisable	242,000
Range $6.00 - $8.00 [Member]
Share-based Compensation, Stock Options Outstanding and Exercisable [Line Items]
Exercise price range, lower range limit	$ 6.00
Exercise price range, upper range limit	$ 8.00
Stock Options Outstanding (in shares)	15,000
Weighted Average Exercise Price (in dollars per share)	$ 6.95
Weighted Average Remaining Contractual Life (in years)	2 years 8 months 1 day
Stock Options Exercisable (in shares)	15,000
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 6.95
Weighted Average Remaining Contractual Life, Exercisable (in years)	2 years 8 months 1 day
Range $8.00 - $12.00 [Member]
Share-based Compensation, Stock Options Outstanding and Exercisable [Line Items]
Exercise price range, lower range limit	$ 8.00
Exercise price range, upper range limit	$ 12.00
Stock Options Outstanding (in shares)	87,450
Weighted Average Exercise Price (in dollars per share)	$ 10.93
Weighted Average Remaining Contractual Life (in years)	1 year 4 months 10 days
Stock Options Exercisable (in shares)	84,116
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 11.00
Weighted Average Remaining Contractual Life, Exercisable (in years)	1 year 1 month 17 days
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of fair market value at which employees acquire shares under stock purchase plan (in hundredths)	85.00%
Number of days average share price used for award conversion	5 days
Common shares reserved for issuance (in shares)	500,000
Shares available for issuance (in shares)	359,316
Shares subscribed by employees (in shares)	22,913
Number of shares purchased by employees (in shares)	22,412
Share-based compensation expense	39,000	29,000	27,000
Employee Stock Purchase Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of compensation that employee can use in stock purchase plan (in hundredths)	10.00%
Retainer Stock Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance (in shares)	300,000
Shares available for issuance (in shares)	97,712
Annual retainer to Directors	30,000
Price shares can be purchased (in hundredths)	100.00%
Non-Employee Directors' Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance (in shares)	200,000
Shares available for issuance (in shares)	152,000
LTEIP Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of days average share price used for award conversion	5 days
Total requisite service period	51 months
Long Term Executive Incentive Program [Abstract]
Performance period for pre-established objectives to earn common stock shares	3 years
Performance shares related liability	971,000	1,028,000
Vesting period for first half of shares awarded	30 days
Vesting period for remaining half of shares awarded	12 months
Total requisite service period	51 months
Non-vested Restricted Stock Activity [Roll Forward]
Non-vested at Beginning of Year (in shares)	32,447	22,813	46,854
Granted/Settled (in shares)	68,699	73,946	51,992
Vested (in shares)	(72,621)	(64,312)	(76,033)
Forfeited (in shares)	0	0	0
Non-vested at End of Year (in shares)	28,525	32,447	22,813
Non-vested Weighted Average Fair Value [Roll Forward]
Non-vested at Beginning of Year (in dollars per share)	$ 3.43	$ 7.84	$ 5.88
Granted (in dollars per share)	$ 9.83	$ 3.43	$ 7.84
Vested (in dollars per share)	$ 6.97	$ 4.99	$ 6.63
Forfeited (in dollars per share)	$ 0	$ 0	$ 0
Non-vested at End of Year (in dollars per share)	$ 9.83	$ 3.43	$ 7.84
LTEIP Restricted Stock [Member] | Minimum [Member]
Long Term Executive Incentive Program [Abstract]
Minimum target objective achievement requirement (in hundredths)	75.00%
LTEIP Restricted Stock [Member] | Maximum [Member]
Long Term Executive Incentive Program [Abstract]
Maximum target objective achievement requirement (in hundredths)	125.00%
1993 Stock Award Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for issuance (in shares)	1,750,000
Shares available for issuance (in shares)	704,143
Share-based compensation expense	823,000	761,000	1,119,000
Unrecognized compensation expense	1,110,000
Period for recognition total compensation cost not yet recognized		2 years 1 month 10 days
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period within which stock options may be exercised (in years)	10 years
Portion of options vesting each year	33.00%
Unrecognized compensation expense	1,000
Period for recognition total compensation cost not yet recognized	3 months
Stock option activity [Abstract]
Weighted average grant date fair value of options (in dollars per share)			$ 0.80
Number of options, shares [Roll Forward]
Outstanding at Beginning of Year (in shares)	143,817	247,650	343,250
Granted (in shares)	0	0	10,000
Exercised (in shares)	(25,117)	(9,833)	(13,000)
Forfeited (in shares)	0	(5,800)	(5,800)
Expired (in shares)	(16,250)	(88,200)	(86,800)
Outstanding at End of Year (in shares)	102,450	143,817	247,650
Exercisable at End of Year (in shares)	99,116	137,150	237,650
Fair Value of Options Vesting During the Year	3,000	3,000	0
Intrinsic Value of Options Exercised During the Year	32,000	8,000	36,000
Weighted Average Exercise Price [Roll Forward]
Outstanding at Beginning of Year (in dollars per share)	$ 9.95	$ 11.28	$ 12.45
Granted (in dollars per share)	$ 0	$ 0	$ 9.03
Exercised (in dollars per share)	$ 8.87	$ 8.82	$ 8.94
Forfeited (in dollars per share)	$ 0	$ 10.98	$ 12.51
Expired (in dollars per share)	$ 9.15	$ 13.73	$ 15.94
Outstanding at End of Year (in dollars per share)	$ 10.35	$ 9.95	$ 11.28
Exercisable at End of Year (in dollars per share)	$ 10.39	$ 10.00	$ 11.37
Proceeds from stock options exercised	$ 223,000
Retention Awards [Member]
Non-vested Restricted Stock Activity [Roll Forward]
Non-vested at Beginning of Year (in shares)	11,150	20,159	29,920
Granted/Settled (in shares)	33,950	14,300	7,600
Vested (in shares)	(13,015)	(19,609)	(13,861)
Forfeited (in shares)	(800)	(3,700)	(3,500)
Non-vested at End of Year (in shares)	31,285	11,150	20,159
Non-vested Weighted Average Fair Value [Roll Forward]
Non-vested at Beginning of Year (in dollars per share)	$ 10.28	$ 7.68	$ 7.47
Granted (in dollars per share)	$ 8.76	$ 10.88	$ 9.31
Vested (in dollars per share)	$ 9.78	$ 8.35	$ 8.13
Forfeited (in dollars per share)	$ 10.57	$ 8.65	$ 7.66
Non-vested at End of Year (in dollars per share)	$ 8.77	$ 10.28	$ 7.68
Retention Awards [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total requisite service period	11 months
Long Term Executive Incentive Program [Abstract]
Total requisite service period	11 months
Retention Awards [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total requisite service period	36 months
Long Term Executive Incentive Program [Abstract]
Total requisite service period	36 months