Note 5 - Accrued Liabilities

3 Months Ended

Mar. 31, 2022

Notes to Financial Statements

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

5. Accrued Liabilities

Accrued liabilities consisted of the following as of March 31, 2022 and December 31, 2021 (in thousands): 

	March 31,		December 31,
	2022		2021
Accrued interest	$	980	$	-
Accrued payroll and other related expenses		556		495
Deferred revenue - subscription rental program		498		448
Accrued clinical trial costs		378		337
Accrued bonuses		303		1,209
Current operating lease liabilities		234		225
Accrued professional fees		162		120
Other accruals		265		219
Total accrued liabilities	$	3,376	$	3,053