Note 8 - Leases (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

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

Year Ending December 31,	Amount
2021	$	2,633
2022		1,801
2023		1,585
2024		1,641
2025		1,112
Undiscounted total		8,772
Less: imputed interest		(1,564	)
Present value of future minimum payments		7,208
Current portion of operating lease liability		(2,052	)
Operating lease liability, net of current portion	$	5,156

Lease, Cost [Table Text Block]

	Year Ended December 31,
	2020			2019
Lease cost
Operating lease cost	$	1,145		$	959
Short-term lease cost		13			15
Variable lease cost		264			162
Sublease income		(217	)		(217	)
Total lease cost	$	1,205		$	919

Restructuring and Related Costs [Table Text Block]

Balance as of January 1, 2018	$	—
Costs of exit from leased premises		359
Deferred rent on cease-use date		19
Impairment of property and equipment		(106	)
Cash paid, net of receipts		(41	)
Accretion charges, included in rent expense		2
Balance as of December 31, 2018	$	233