Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	2021			2020			2019
Current income taxes
Federal	$	-		$	-		$	-
State		-			-			-
Foreign		232			169			100
Deferred income taxes
Federal		-			-			-
State		-			-			-
Foreign		(7	)		(1,685	)		(3,224	)
Total income tax expense (benefit)	$	225		$	(1,516	)	$	(3,124	)

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	2021			2020			2019
United States	$	(32,094	)	$	(34,398	)	$	(91,935	)
Foreign		(30,143	)		(26,430	)		(65,390	)
Total loss from operations before taxes	$	(62,237	)	$	(60,828	)	$	(157,325	)

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	2021			2020
Deferred Tax assets:
Stock-based compensation	$	2,440		$	4,253
Accrued expenses and other		2,423			906
Research credit carryforward		564			-
Fixed Assets		101			385
Capitalized start-up costs and other intangibles		1,109			2,686
Net operating loss carryforwards		75,237			63,786
		81,874			72,016
Valuation Allowance		(78,294	)		(67,312	)
Net deferred tax asset		3,580			4,704
Deferred tax liabilities
Fixed assets and other		(1,176	)		(1,590	)
Purchase accounting intangibles		(2,116	)		(2,807	)
Net deferred tax liability		(3,292	)		(4,397	)
Net deferred tax asset (liability)	$	288		$	307

Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]

	2021		2020			2019
Beginning balance	$	-	$	1,512		$	1,363
Gross increases for tax positions related to current periods		141		108			149
Gross decreases related to 382 limitations		-		(1,620	)		-
Ending balance	$	141	$	-		$	1,512

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	2021						2020						2019
	Amount			Percent of Pretax Earnings			Amount			Percent of Pretax Earnings			Amount			Percent of Pretax Earnings
United States federal tax at statutory rate	$	(13,070	)		21.0	%	$	(12,774	)		21.0	%	$	(33,038	)		21.0	%
State taxes (net of deferred benefit)		(2,205	)		3.5	%		(1,768	)		2.9	%		(4,778	)		3.0	%
Nondeductible expenses		(440	)		0.7	%		719			(1.2	%)		709			(0.5	%)
Change in fair market value of contingent consideration		(397	)		0.6	%		717			(1.2	%)		(2,342	)		1.5	%
Warrant remeasurment and financing costs		502			(0.8	%)		82			(0.1	%)		(551	)		0.4	%
Research & Development		(705	)		1.1	%		(542	)		0.9	%		(743	)		0.5	%
Change in unrecognized tax benefits		141			(0.2	%)		(1,512	)		2.5	%		149			(0.1	%)
Foreign tax rate differential		1,911			(3.1	%)		1,589			-2.6	%		2,590			(1.6	%)
Goodwill and investment impairments		-			-			-			-			(6,638	)		4.2	%
Adjustment for 382 Limitations		-			-			67,255			(110.6	%)		-			0.0	%
True-up to Stock Compensation - Cancellations		2,832			(4.6	%)		-			-			-			0.0	%
Change in enacted tax rates and other, net		731			(1.0	%)		533			(0.9	%)		(253	)		0.2	%
Change in valuation allowance		10,925			(17.6	%)		(55,815	)		91.8	%		41,771			26.6	%
Income tax expense (benefit)	$	225			(0.4	%)	$	(1,516	)		2.5	%	$	(3,124	)		2.0	%