Note 4 - Accrued Liabilities

3 Months Ended

Mar. 31, 2019

Notes to Financial Statements

Accounts Payable and Accrued Liabilities Disclosure [Text Block]

4. Accrued Liabilities

Accrued liabilities consisted of the following (in thousands):

	At
	March 31, 2019		December 3 1 , 201 8
Inventory purchases	$	1,719	$	2,030
Research and development		934		651
Leases		565		—
Warranty reserve		480		431
Sales and marketing		456		313
Interest		374		364
Regulatory, clinical and quality		297		493
Deferred revenue		193		107
Taxes		168		222
Legal		86		258
Information technology system implementations		-		36
Accrued other		559		831
Total accrued liabilities	$	5,831	$	5,736