Note 10 - Warranty

12 Months Ended

Dec. 31, 2021

Notes to Financial Statements

Product Warranty Disclosure [Text Block]

10. WARRANTY

The Company offers a warranty on all of its non-disposable products of one to two years. The Company warrants disposable products through their expiration date, which is three years for most products. The Company periodically assesses the adequacy of the warranty reserves and adjusts as necessary.

The warranty liability is included in other current liabilities in the consolidated balance sheets. Changes in the Company’s warranty reserve, which is included in other current liabilities in the accompanying consolidated balance sheet is as follows:

	Year Ended December 31,
	2021			2020
Beginning balance	$	154,000		$	277,000
Warranties originated during the year		65,000			71,000
Claims settled made during the year		(149,000	)		(212,000	)
Changes in reserve estimate		(3,000	)		18,000
Ending balance	$	67,000		$	154,000