Concentrations (Details)	12 Months Ended
	Dec. 31, 2013
Concentration [Abstract]
Approximate percentage of revenue	35.00%
Canadian
Concentration [Abstract]
Number of service centers	3
Chemical Industry [Member]
Concentration [Abstract]
Approximate percentage of revenue	22.00%
Petroleum Industry [Member]
Concentration [Abstract]
Approximate percentage of revenue	19.00%
Transportation Industry [Member]
Concentration [Abstract]
Approximate percentage of revenue	18.00%
Steel Industry [Member]
Concentration [Abstract]
Approximate percentage of revenue	11.00%
Food/Agriculture [Member]
Concentration [Abstract]
Approximate percentage of revenue	10.00%
Percentage of employees covered by union contracts, expiring within an year [Member]
Concentration [Abstract]
Approximate percentage of revenue	2.00%