Common Stock and Stock Options (Details) (USD $)	9 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2012 Employee Stock Option [Member]	Dec. 31, 2011 Employee Stock Option [Member]
Stock Options - Outstanding (in shares)			736,750	783,750
Stock Options - Exercised (in shares)				(17,000)
Stock Options - Expired (in shares)			(144,500)	(30,000)
Stock Options - Outstanding (in shares)			592,250	736,750
Stock Options - shares exercisable (in shares)			322,250	419,375
Weighted Average Exercise Price - Outstanding (in dollars per share)		$ 4.83	$ 4.52	$ 4.35
Weighted Average Exercise Price - Exercised (in dollars per share)	$ 1.52			$ 1.55
Weighted Average Exercise Price - Expired (in dollars per share)			$ 1.59	$ 1.90
Weighted Average Exercise Price - Outstanding (in dollars per share)		$ 4.83	$ 5.23	$ 4.52
Weighted Average Exercise Price - Shares exercisable (in dollars per share)			$ 4.59	$ 3.41