Note 3 - Business Acquisitions - Fair Value of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 20, 2018	Dec. 31, 2019	Dec. 31, 2018
Goodwill		$ 219,341	$ 225,450
Aegis [Member]
Stock consideration (based on shares outstanding immediately prior the closing date) (in shares)	16,226,392
Closing share price on July 20, 2018 (in dollars per share)	$ 6.81
Total allocable purchase price	$ 110,502
Cash and cash equivalents	1,496
Other current assets	46,094
Property, plant and equipment, net	15,930
Identifiable intangible assets	28,960
Goodwill	64,345
Other non-current assets	3,204
Current liabilities	(22,548)
Non-current liabilities	(26,979)
Purchase price	$ 110,502

Number of shares of equity interests issued or issuable to acquire entity.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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