Note 10 - Leases (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Accounting Standards Update and Change in Accounting Principle [Table Text Block]

	Balance at December 31, 2018			Adjustments Upon Adoption of ASC 842			Balance at January 1, 2019
Assets
Right-of-use operating lease assets	$	—		$	832		$	832
Liabilities
Other accrued liabilities		6,099			(22	)		6,077
Operating lease liabilities - current		—			522			522
Operating lease liabilities - non-current		—			310			310
Equity
Accumulated deficit		(102,495	)		22			(102,473	)

Lease, Cost [Table Text Block]

		2020		2019
Operating lease cost	$	205	$	555
Short-term lease cost		20		136
Total lease cost	$	225	$	691

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

Year Ending December 31,	Operating Leases
2021		177
2022		123
2023		116
2024		27
Thereafter		10
Total lease payments	$	453
Less imputed interest		(67	)
Total	$	386

Operating Lease Liabilities [Table Text Block]

	2020		2019
Operating lease liabilities - current	$	149	$	182
Operating lease liabilities - non-current		237		180
Total operating lease liabilities	$	386	$	362

Lessee, Operating Leases, Supplemental Cash Flow Information [Table Text Block]

	For the Twelve Months ended December 31, 2020		For the twelve months ended December 31, 2019
Cash paid for amounts included in the measurement of lease liabilities	$	192	$	541
Leased assets obtained in exchange for operating lease liabilities		179		520