Stock-based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended			3 Months Ended			6 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Stock Options	Jun. 30, 2012 Restricted Stock	Jun. 30, 2011 Restricted Stock	Mar. 31, 2011 Restricted Stock	Jun. 30, 2012 Restricted Stock	Jun. 30, 2012 Performance and Service Conditions Restricted Stock	Jun. 30, 2012 Performance and Service Conditions Restricted Stock	Jun. 30, 2012 Minimum Restricted Stock
Stock-based Compensation
Options vested during period	2,400	6,400	7,500	20,300
Unvested stock options outstanding	12,000		12,000
Shares available for grant					0
Stock options outstanding	252,117		252,117
Restricted shares outstanding						640,500			640,500
Restricted shares outstanding, vested						23,331			23,331
Restricted shares outstanding, nonvested						617,169			617,169
Shares of restricted stock issued						497,500	0	145,000	497,500	490,000	490,000
Years of service required												2 years
Restricted shares forfeited						20,000			20,000
Average fair value of restricted stock granted (in dollars per share)						$ 2.31	$ 2.34		$ 2.31
Share-based compensation expense	$ 129,281	$ 53,725	$ 164,040	$ 90,373
Total unrecognized share-based compensation cost	$ 1,258,647		$ 1,258,647
Period to recognize share-based compensation expense not yet recognized			2 years 7 months 6 days