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Note 1 - Organization and Summary of Significant Accounting Policies - Property and Equipment - Useful Lives (Details)	12 Months Ended
	Dec. 31, 2016
Building [Member]
Useful life (Year)	39 years
Minimum [Member] \| Machinery and Equipment [Member]
Useful life (Year)	3 years
Minimum [Member] \| Furniture and Fixtures [Member]
Useful life (Year)	5 years
Minimum [Member] \| Leasehold Improvements [Member]
Useful life (Year)	1 year
Maximum [Member] \| Machinery and Equipment [Member]
Useful life (Year)	5 years
Maximum [Member] \| Furniture and Fixtures [Member]
Useful life (Year)	7 years
Maximum [Member] \| Leasehold Improvements [Member]
Useful life (Year)	5 years