Note 6 - Accrued Expenses and Other Current Liabilities

12 Months Ended

Dec. 31, 2022

Notes to Financial Statements

Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block]

6. Accrued Expenses and Other Current Liabilities

Accrued expenses and other current liabilities consisted of the following (in thousands):

	December 31,
	2022		2021
Deferred revenue	$	141	$	123
Accrued travel and entertainment expenses		129		118
Accrued product warranty costs		109		187
Accrued clinical trial costs		106		153
Accrued professional fees		60		—
Accrued sales and use tax		40		33
Other accrued liabilities		72		104
Total accrued expenses and other current liabilities	$	657	$	718