Note 8 - Revenue

6 Months Ended

Jun. 30, 2022

Notes to Financial Statements

Revenue from Contract with Customer [Text Block]

8. Revenue

The following table presents net sales by geographic areas:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
United States	$	1,573,000	$	1,016,000	$	3,439,000	$	2,041,000
China		1,117,000		46,000		1,206,000		88,000
Thailand		--		398,000		7,000		400,000
Other		339,000		741,000		1,040,000		1,189,000
Total	$	3,029,000	$	2,201,000	$	5,692,000	$	3,718,000

The following tables summarizes the revenues by product line and type:

	Three Months Ended June 30, 2022
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,923,000	$	40,000	$	--	$	1,963,000
BioArchive		338,000		305,000		--		643,000
CAR-TXpress		163,000		58,000		71,000		292,000
Manual Disposables		102,000		--		--		102,000
Other		23,000		--		6,000		29,000
Total	$	2,549,000	$	403,000	$	77,000	$	3,029,000

	Six Months Ended June 30, 2022
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	3,634,000	$	96,000	$	--	$	3,730,000
BioArchive		493,000		603,000		--		1,096,000
CAR-TXpress		361,000		101,000		142,000		604,000
Manual Disposables		207,000		--		--		207,000
Other		40,000		--		15,000		55,000
Total	$	4,735,000	$	800,000	$	157,000	$	5,692,000

	Three Months Ended June 30, 2021
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,048,000	$	48,000	$	--	$	1,096,000
BioArchive		223,000		326,000		--		549,000
CAR-TXpress		287,000		30,000		72,000		389,000
Manual Disposables		116,000		--		--		116,000
Other		30,000		--		21,000		51,000
Total	$	1,704,000	$	404,000	$	93,000	$	2,201,000

	Six Months Ended June 30, 2021
	Device Revenue		Service Revenue		Other Revenue		Total Revenue
AXP	$	1,273,000	$	87,000	$	--	$	1,360,000
BioArchive		431,000		868,000		--		1,299,000
CAR-TXpress		542,000		58,000		143,000		743,000
Manual Disposables		245,000		--		--		245,000
Other		37,000		--		34,000		71,000
Total	$	2,528,000	$	1,013,000	$	177,000	$	3,718,000

Contract Balances

Generally, all sales are contract sales (with either an underlying contract or purchase order). The Company does not have any material contract assets. When invoicing occurs prior to revenue recognition, a contract liability is recorded (as deferred revenue on the consolidated balance sheet). Revenues recognized during the three and six months ended June 30, 2022 that were included in the beginning balance of deferred revenue were $292,000 and $641,000, respectively. Short-term deferred revenues were $1,029,000 and $719,000 at June 30, 2022 and December 31, 2021, respectively. Long-term deferred revenue was $1,095,000 and $1,244,000 at June 30, 2022 and December 31, 2021, respectively.

Backlog of Remaining Customer Performance Obligations

The following table represents revenue expected to be recognized in the future from the backlog of performance obligations that are unsatisfied (or partially unsatisfied) at the end of the reporting period:

	Remainder of 2022		2023		2024		2025		2026 and beyond		Total
Service revenue	$	782,000	$	682,000	$	203,000	$	83,000	$	--	$	1,750,000
Device revenue (1)		41,000		733,000		41,000		--		--		815,000
Exclusivity fee		143,000		286,000		286,000		286,000		191,000		1,192,000
Other		7,000		13,000		13,000		13,000		130,000		176,000
Total	$	973,000	$	1,714,000	$	543,000	$	382,000	$	321,000	$	3,933,000

⁽¹⁾ Represents the minimum purchase requirements under the distribution agreement the Company signed with its AXP distributor in China.