Fair Value Measurements (Details 1) (USD $)	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011
Balance, January 1,	$ 2,150,000		$ 0
Total gains or losses for the period:
Non-cash gain on change in fair value of contingent obligation included in general and administrative expense	(900,000)	[1]	0	[1]
Initial fair value of contingent obligation	0	[2]	2,150,000	[2]
Balance, December 31,	$ 1,250,000		$ 2,150,000

[1] For the year ended December 31, 2012, the Company measured the fair value of its contingent obligation and recorded a non-cash gain fair value adjustment of approximately $0.9 million to reflect a reduction in fair value of its contingent obligation. The Company determined the fair value of contingent consideration based on a probability weighted discounted cash flow valuation technique. The potential payout of consideration for the year ending 2013 is up to $1.5 million of face value of the contingent seller financed promissory note.

[2] For the year ended December 31, 2011, the Company recorded an initial fair value of contingent consideration of approximately $2.15 million based on a probability weighted discounted cash flow valuation technique. The potential payout of consideration for the year ended 2012 was up to $1.5 million of face value of the contingent seller financed promissory note.