Fair Value Measurements (Details) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Balance, Beginning of Period	$ 0		$ 1,250,000		$ 2,150,000
Total additions for the period:
Fair value of SCL contingent obligation (see Notes 3 and 9)	1,000,000	[1]	0	[1]	0	[1]
Total gains or losses for the period:
Non-cash gain on change in fair value of AGS contingent obligation included in general and administrative expense	0	[2]	1,250,000	[2]	900,000	[2]
Balance, End of Period	$ 1,000,000		$ 0		$ 1,250,000

[1] Management determined the fair value of its SCL contingent obligation based on a probability weighted discounted cash flow valuation technique. The potential probability of not paying out contingent consideration is considered remote. Contingent consideration has been classified as short term and included in the caption "current portion of long term debt" on the consolidated balance sheet at December 31, 2014.

[2] Management determined the fair value of its AGS contingent obligation based on a probability weighted discounted cash flow valuation technique. The potential probability for payout of contingent consideration is considered remote during the year ended December 31, 2013. On April 15, 2014, the Company formally cancelled the contingent seller financed promissory note.