Stock-Based Compensation (Details Textual) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Stock-Based Compensation (Textual) [Abstract]
Common shares available for grant	4,954,600
Recognized compensation expenses	$ 4,700	53,000
Recognition of remaining compensation expense over a weighted-average period	12 months 18 days
Tax benefit from restricted stock dividends	22,000
Stock-Based Compensation (Additional Textual) [Abstract]
Exercise of common stock options, shares		217,003
Surrender of Shares		71,409
Stock options vested	0	0
Unrecognized compensation expenses related to nonvested stock options	20,000
Restricted stock issued		0
Maximum [Member]
Stock-Based Compensation (Textual) [Abstract]
Stock options granted, vesting period, high end of range	10 years
Minimum [Member]
Stock-Based Compensation (Textual) [Abstract]
Stock options granted, vesting period range	5 years
Restricted Stock [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of restricted shares Outstanding	245,400	0	246,320
Recognized compensation expenses	384,700
Recognition of remaining compensation expense over a weighted-average period	27 months
Income tax benefit recognized stock based compensation	148,000
Tax benefit from restricted stock dividends	22,000
Granted shares	0	0
2007 Stock Option and Incentive Plan (Prior Plan) [Member]
Stock-Based Compensation (Textual) [Abstract]
Common shares available for grant	0
Total unrecognized compensation expense, Nonvested restricted stock arrangements granted	$ 2,400,000
Omnibus Incentive Plan New Plan 2012 [Member]
Stock-Based Compensation (Textual) [Abstract]
Common shares available for grant	5,000,000
Maximum Number of ISO Shares Issuable under Plan	4,000,000
Number of shares granted	0
Omnibus Incentive Plan New Plan 2012 [Member] | Restricted Stock [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of restricted shares Outstanding	45,400
Stock Options [Member]
Stock-Based Compensation (Textual) [Abstract]
Number of shares granted	0