3. Summary of Significant Accounting Policies (Detail) - (Table 1) Summary of Property and Equipment Useful Lives

12 Months Ended

Dec. 31, 2012

Property, Plant, and Equipment, Estimated Useful Lives

Computer hardware and software	2 - 3 years
Furniture and fixtures	5 years
Machinery and equipment	2 - 5 years
Office equipment	5 years
Vehicles	5 years

Computer Equipment [Member]

Property, Plant, and Equipment, Estimated Useful Lives

2 - 3 years

Furniture and Fixtures [Member]

Property, Plant, and Equipment, Estimated Useful Lives

5 years

Machinery and Equipment [Member]

Property, Plant, and Equipment, Estimated Useful Lives

2 - 5 years

Office Equipment [Member]

Property, Plant, and Equipment, Estimated Useful Lives

5 years

Vehicles [Member]

Property, Plant, and Equipment, Estimated Useful Lives

5 years