Note 1 - Organization and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Revenues By Product Line [Table Text Block]

	Year Ended December 31,
(In thousands, except percentages)	2022		2021⁽¹⁾		2020⁽²⁾
Product revenue
Freezer and thaw	$	66,682	$	56,620	$	13,548
Cell processing		68,509		44,965		30,946
Storage and cold chain services		809		328		46
Service revenue
Freezer and thaw		74		-		-
Storage and cold chain services		15,234		9,817		1,752
Rental revenue
Storage and cold chain services		10,451		7,426		1,795
Total revenue	$	161,759	$	119,156	$	48,087

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

(In thousands)	2023		2024		Total
Rental revenue	$	3,735	$	900	$	4,635
Service revenue	$	200	$	10	$	210

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended December 31,
(In thousands, except share and earnings per share data)	2022			2021			2020
Basic earnings (loss) per common share
Numerator:
Net (loss) income	$	(139,805	)	$	(8,908	)	$	1,983
Amount attributable to unvested restricted shares		-			-			(100	)
Amount attributable to warrants outstanding		-			-			(61	)
Net (loss) income allocated to common shareholders		(139,805	)		(8,908	)		1,822
Denominator:
Weighted-average common shares issued and outstanding		42,481,027			38,503,944			27,306,258
Basic (loss) earnings per common share	$	(3.29	)	$	(0.23	)	$	0.07
Diluted earnings (loss) per common share
Numerator:
Net (loss) income	$	(139,805	)	$	(8,908	)	$	1,983
Amount attributable to warrants		-			-			(14	)
Less: gain related to change in fair value of warrants		-			-			(3,601	)
Net loss allocated to common shareholders		(139,805	)		(8,908	)		(1,632	)
Denominator:
Weighted-average common shares issued and outstanding		42,481,027			38,503,944			27,306,258
Diluted loss per common share	$	(3.29	)	$	(0.23	)	$	(0.06	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Year Ended December 31,
	2021		2020
Stock options and restricted stock awards		1,637,745		2,131,794
Warrants		18,204		1,499,953
Total		1,655,949		3,631,747

Schedule of Cash and Cash Equivalents [Table Text Block]

(In thousands)	2022		2021
Cash and cash equivalents	$	19,442	$	69,860
Restricted cash		31		10
Total cash, cash equivalents, and restricted cash	$	19,473	$	69,870

Revenue from External Customers by Products and Services [Table Text Block]

	Year Ended December 31,
Revenue by major product	2022			2021			2020
CryoStor		36	%		33	%		60	%
780XLE Freezer		22	%		22	%		-	%

	Year Ended December 31,
Revenue by customers’ geographic locations	2022			2021			2020
United States		72	%		78	%		73	%
Canada		17	%		7	%		13	%
Europe, Middle East, Africa (EMEA)		7	%		14	%		12	%
Other		4	%		1	%		2	%
Total revenue		100	%		100	%		100	%

(In thousands)	2022		2021
United States	$	42,829	$	40,708
Netherlands		5,437		5,903
Total	$	48,266	$	46,611