Stockholders' Equity (Details 5) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Shares Exercisable, beginning of period (in shares)	86,625	110,625
Shares, Granted (in shares)	109,000	8,000
Shares, Exercised (in shares)	(49,000)	(4,000)
Shares, Cancelled (in shares)	(2,875)	(42,250)
Shares Exercisable at the end of period (in shares)	47,000	86,625
Weighted Average Exercise Price, Exercisable, beginning of period (in dollars per share)	$ 2.61	$ 3.36
Weighted Average Exercise Price, Exercised (in dollars per share)	$ 1.94	$ 2.49
Weighted Average Exercise Price, Cancelled (in dollars per share)	$ 5.10	$ 4.78
Weighted Average Exercise Price, Exercisable at the end of period (in dollars per share)	$ 4.03	$ 2.61
Warrant [Member]
Shares Exercisable, beginning of period (in shares)	0	0
Shares, Granted (in shares)	140,048	0
Shares, Exercised (in shares)	0	0
Shares, Cancelled (in shares)	0	0
Shares Exercisable at the end of period (in shares)	140,048	0
Weighted Average Exercise Price, Exercisable, beginning of period (in dollars per share)	$ 0	$ 0
Weighted Average Exercise Price, Granted (in dollars per share)	$ 0.01	$ 0
Weighted Average Exercise Price, Exercised (in dollars per share)	$ 0	$ 0
Weighted Average Exercise Price, Cancelled (in dollars per share)	$ 0	$ 0
Weighted Average Exercise Price, Exercisable at the end of period (in dollars per share)	$ 0.01	$ 0