Note 12 - Concentrations

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

12.

         

Concentrations

One customer had an accounts receivable balance of

$531,000

or

38%

and

$337,000

or

27%

at

December 31, 2020

and

2019,

respectively. Revenues from that customer totaled

$2,646,000

or

27%

and

$3,575,000

or

27%

for the years ended

December 31, 2020

and

2019,

respectively. One distributor had an accounts receivable balance of

$337,000

or

24%

and

$0

at

December 31, 2020

and

2019,

respectively. Revenues from same distributor totaled

$1,293,000

or

13%

and

$0

for the years ended

December 31, 2020

and

2019,

respectively. A

second

distributor had an accounts receivable balance of

$139,000

or

10%

and

$93,000

or

7%

at

December 31, 2020

and

2019,

respectively. Revenues from the same distributor totaled

$283,000

or

3%

and

373,000

or

3%

for the years ended

December 31, 2020

and

2019,

respectively. 

One supplier accounted for

40%

and

57%

of total inventory purchases during the years ended

December 31, 2020

and

2019,

respectively.

The Company has a contract manufacturer in Costa Rica that produces certain disposables. The Company's equipment and leasehold improvements, net of accumulated depreciation, is summarized below by geographic area:

	Year Ended December 31,
	2020		2019
United States	$	810,000	$	1,108,000
Costa Rica		390,000		582,000
India		169,000		225,000
All other countries		55,000		113,000
Total equipment, net	$	1,424,000	$	2,028,000