Note 11 - Concentrations

12 Months Ended

Dec. 31, 2019

Notes to Financial Statements

Concentration Risk Disclosure [Text Block]

1

1

.  

Concentrations

One customer had an accounts receivable balance of

$337,000

or

26%

and

$494,000

or

33%

at

December 31, 2019

and

2018,

respectively. Revenues from that customer totaled

$3,575,000

or

28%

and

$2,120,000

or

22%

for the years ended

December 31, 2019

and

2018,

respectively. One distributor had an accounts receivable balance of

$177,000

or

14%

and

$229,000

or

15%

at

December 31, 2019

and

2018,

respectively. Revenues from that distributor totaled

$1,470,000

or

11%

and

$861,000

or

9%

for the years ended

December 31, 2019

and

2018,

respectively. A

second

distributor had an accounts receivable balance of

$170,000

or

13%

and

$220,000

or

15%

at

December 31, 2019

and

2018,

respectively.

Two suppliers accounted for

57%

and

18%

of total inventory purchases during the year ended

December 31, 2019.

Two suppliers accounted for

43%

and

14%

of total inventory purchases during the year ended

December 31, 2018.

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,
	2019		2018
United States	$	1,108,000	$	1,614,000
Costa Rica		582,000		601,000
India		225,000		211,000
All other countries		113,000		136,000
Total equipment, net	$	2,028,000	$	2,562,000