Note 8 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Lease, Cost [Table Text Block]

Lease Costs	Year Ended December 31,
	2020			2019
Operating lease cost	$	826		$	1,130
Sublease income		(421	)		(632	)
Net lease cost	$	405		$	498
Other information
Operational cash flow used for operating leases	$	927		$	1,285

	December 31,
	2020		2019
Weighted-average remaining lease term (in years)		1.2		1.7
Weighted-average discount rate		12%		12%

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

2021	$	454
2022		88
Thereafter		—
Total future minimum lease payments		542
Less imputed interest		(39	)
Total	$	503
Reported as:
Operating lease liability	$	416
Operating lease liability- non-current		87
Total	$	503