Note 19 - Subsequent Events (Details Textual) $ in Millions	Jan. 02, 2020 USD ($)
Subsequent Event [Member] \| Assets Acquisition of MPI Products, Inc. [Member]
Business Combination, Consideration Transferred, Total	$ 9.4

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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