Note 1 - Organization and Summary of Significant Accounting Policies (Detail) - Property and Equipment - Useful Lives	12 Months Ended
	Dec. 31, 2012
Machinery and Equipment [Member] | Minimum [Member]
Property and Equipment	3 years
Machinery and Equipment [Member] | Maximum [Member]
Property and Equipment	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property and Equipment	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property and Equipment	7 years
Leasehold Improvements [Member] | Minimum [Member]
Property and Equipment	1 year
Leasehold Improvements [Member] | Maximum [Member]
Property and Equipment	5 years
Building [Member]
Property and Equipment	39 years