Note 3 - Somerset Acquisition, Goodwill, In-Process Research and Development and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

	Amount
Cash consideration	$	8,000
Tangible assets acquired:
Machinery and equipment		682
Leasehold improvements		1,300
Total tangible assets acquired		1,982
Intangible assets - Somerset		1,245
Total tangible and intangible assets acquired		3,227
Goodwill	$	4,773

Schedule of Intangible Assets and Goodwill [Table Text Block]

						Other
						Intangible
	Goodwill		IPR&D			Assets
Balance at January 1, 2018	$	13,074	$	28,700		$	1,669
Reclassification of AZEDRA IPR&D		-		(4,900	)		4,900
Impairment of 1404 IPR&D		-		(23,200	)		-
Amortization expense		-		-			(503	)
Balance at December 31, 2018		13,074		600			6,066
Increase related to Somerset acquisition		4,773		-			1,245
Amortization expense		-		-			(1,088	)
Balance at December 31, 2019	$	17,847	$	600		$	6,223

Components of Finite Lived Intangible Assets [Table Text Block]

	Gross Amount		Accumulated Amortization		Net Carrying Value
Intangible assets - AZEDRA product rights	$	4,900	$	992	$	3,908
Intangible assets - Somerset		1,245		176		1,069
Intangible assets - EXINI technology		2,120		874		1,246
Total	$	8,265	$	2,042	$	6,223