Note 16 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Accounts Receivable, Related Parties	$ 75,000	$ 0
China Kingston [Member] | Related-party Commission Fees [Member]
Related Party Transaction, Expenses from Transactions with Related Party	1,100,000	408,000	$ 0
Amortization Revenue [Member] | Neutrophase [Member]
Other Income	$ 418,000	$ 95,000	$ 208,000