Note 11 - Reserves

12 Months Ended

Dec. 31, 2020

Notes to Financial Statements

SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]

11. RESERVES

Allowance for doubtful accounts for

2020

and

2019

were as follows:

Description	Balance at Beginning of Year		Increase		Balance at End of Year
	(in thousands)
Allowance for Doubtful Accounts
2020	$	35	$	185	$	220
2019	$	34	$	1	$	35