Note 14 - Preliminary Allocation of Business Combination Purchase Price (Details) - Bretelon, Inc. [Member] - Subsequent Event [Member]	Dec. 06, 2015 USD ($)
Developed Technology Rights [Member] | Minimum [Member]
Intangible assets acquired, estimated useful life	8 years
Developed Technology Rights [Member] | Maximum [Member]
Intangible assets acquired, estimated useful life	10 years
Developed Technology Rights [Member]
Intangible assets acquired	$ 14,190,000
Customer Relationships [Member] | Minimum [Member]
Intangible assets acquired, estimated useful life	3 years
Customer Relationships [Member] | Maximum [Member]
Intangible assets acquired, estimated useful life	5 years
Customer Relationships [Member]
Intangible assets acquired	$ 4,700,000
Cash consideration	21,072,000
Liabilities assumed	1,647,000
Total consideration	22,719,000
Assets acquired	32,000
Liabilities assumed	(1,647,000)
Net tangible liabilities assumed	(1,615,000)
Goodwill	5,444,000
Total consideration	$ 22,719,000