SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4)	12 Months Ended
	Dec. 27, 2013
Equipment | Minimum
Equipment and Leasehold Improvements
Estimated Useful Life	2 years
Equipment | Maximum
Equipment and Leasehold Improvements
Estimated Useful Life	5 years
Furniture and fixtures
Equipment and Leasehold Improvements
Estimated Useful Life	5 years
Computer hardware
Equipment and Leasehold Improvements
Estimated Useful Life	2 years
Computer software
Equipment and Leasehold Improvements
Estimated Useful Life	3 years
Automobiles and trucks
Equipment and Leasehold Improvements
Estimated Useful Life	3 years
Field equipment
Equipment and Leasehold Improvements
Estimated Useful Life	5 years