Note 10 - Share-based Compensation (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Share-based Payment Arrangement, Cost by Plan [Table Text Block]

	Three months ended June 30,				Six months ended June 30,
	2020		2019		2020		2019
	(in thousands)				(in thousands)
Stock option awards	$	495	$	432	$	995	$	879
Restricted stock units		308		262		587		561
Total share-based compensation	$	803	$	694	$	1,582	$	1,440

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three months ended				Six months ended
	June 30,				June 30,
	2020		2019		2020		2019
	(in thousands)				(in thousands)
Cost of sales	$	88	$	76	$	167	$	158
Sales and marketing		134		146		293		304
General and administrative		495		418		951		837
Research and development		86		54		171		141
Total stock-based compensation	$	803	$	694	$	1,582	$	1,440