Stock Options (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Stock Options [Line Items]
Award vesting rights			20% vested on the date of grant, with the balance vesting 20% per year over the next four years, except for directors whose options vest six months from the date of grant.
2004 Plan [Member]
Stock Options [Line Items]
Number of shares authorized (in shares)	2,500,000		2,500,000
Vesting period			6 months
2004 Plan [Member] | Incentive Stock Options [Member]
Stock Options [Line Items]
Award vesting rights			Twenty percent of the options vested immediately on the date of grant, with the balance of the options to vest in equal annual installments over the next four years on the anniversary date of the original grant.
Vesting period			4 years
Number of executives affected			3
Grants in period (in shares)			890,000
Grant period			10 years
Compensation period not yet recognized	$ 2,358,000		$ 2,358,000
Compensation expense	$ 117,900	$ 117,900	$ 353,700	$ 353,700
2004 Plan [Member] | Incentive Stock Options [Member] | Directors [Member]
Stock Options [Line Items]
Term of employment agreements			5 years
2004 Plan [Member] | Incentive Stock Options [Member] | Date of Grant [Member]
Stock Options [Line Items]
Percentage of options vesting (in hundredths)			20.00%
2004 Plan [Member] | Incentive Stock Options [Member] | Per Year Over Next Four Years [Member]
Stock Options [Line Items]
Percentage of options vesting (in hundredths)			20.00%
2010 Plan [Member]
Stock Options [Line Items]
Number of shares authorized (in shares)	5,000,000		5,000,000
2010 Plan [Member] | Incentive Stock Options [Member] | Executive Officer [Member]
Stock Options [Line Items]
Vesting period			4 years
2010 Plan [Member] | Incentive Stock Options [Member] | Date of Grant [Member] | Executive Officer [Member]
Stock Options [Line Items]
Percentage of options vesting (in hundredths)			20.00%