Note 8 - Leases (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Lease, Cost [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Operating lease cost	$	247	$	393	$	865	$	1,174
Short-term lease cost	$	20	$	13	$	60	$	35

Range of remaining lease terms (in years)	0.5	to	9.6
Weighted average remaining lease term (in years)			6.0
Weighted average discount rate			4.2	%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

2021 (remainder)	$	358
2022		1,469
2023		1,482
2024		1,474
2025		722
Thereafter		1,845
Total lease payments	$	7,350
Less imputed interest		(811	)
Total	$	6,539

Supplemental Cash Flow Infomation, Lessee [Table Text Block]

Execution of lease for facility in Fremont, California $ 202

Modification to lease for facility in Fremont, California	$	1,176
Modification to lease for facility in Mt. Laurel, New Jersey	$	2,051