Note 2 - Summary of Significant Accounting Policies (Detail) - Estimated Useful Lives	12 Months Ended
	Dec. 31, 2012
Building and Building Improvements [Member]
Estimated useful lives	22
Machinery and Equipment [Member] | Minimum [Member]
Estimated useful lives	5
Machinery and Equipment [Member] | Maximum [Member]
Estimated useful lives	10
Machinery and Equipment [Member]
Estimated useful lives	-
Vehicles [Member]
Estimated useful lives	5
Office Equipment [Member] | Minimum [Member]
Estimated useful lives	3
Office Equipment [Member] | Maximum [Member]
Estimated useful lives	7
Office Equipment [Member]
Estimated useful lives	-