Financial Statements Schedules

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

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

(a)(2) Financial Statement Schedules

All other schedules have been omitted because the information required to be set forth therein is not applicable or is shown in the financial statements or notes thereto. Financial statement schedules relating to the allowance for doubtful accounts receivable and for sales returns follows (in thousands):

Description	Balance at Beginning of Year		Charged to costs and expenses		Write offs		Balance at End of Year
Allowance for doubtful accounts receivable:
Fiscal year ended 2021	$	19	$	2	$	15	$	6
Fiscal year ended 2022	$	6	$	70	$	3	$	73

	Balance at Beginning of Year		Charged to costs and expenses		Write offs		Balance at End of Year
Allowance for sales returns:
Fiscal year ended 2021	$	20	$	10	$	10	$	20
Fiscal year ended 2022	$	20	$	—	$	5	$	15