Note 17 - Related Party Transactions (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

	Year Ended December 31,
	2020		2019		2018
Related party revenue:
NeutroPhase	$	524	$	209	$	47
Licensing		—		41		34
Total related party revenue	$	524	$	250	$	77
Cost of goods sold
NeutroPhase	$	384	$	176	$	426
Licensing		—		—		—
Total related party expenses	$	384	$	176	$	426

	Year Ended December 31,
	2020		2019		2018
Commissions to China Kington related to:
OP Private Placement	$	—	$	—	$	359
June 2019 Private Placement		—		144		—
August 2019 Private Placement		—		162		—
Exercise of June 2019 Warrants		41		—		—
Exercise of 2019 Foreign Warrants		160		—		—
Promissory Note to Pioneer Pharma (Hong Kong) Company Ltd.		—		20		—
Total commissions to China Kington		201		326		359
Board Director Bob Wu consulting fee		17		83		—
Total related party expenses	$	218	$	409	$	359