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Note 10 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Lease, Cost [Table Text Block]

Lease Costs		Year Ended December 31,
		2021				2020
Operating lease cost		$	418			$	826
Sublease income			—				(421	)
Net lease cost		$	418			$	405
Other information
Operational cash flow used for operating leases		$	475			$	927

		Year Ended December 31,
		2021				2020
Weighted-average remaining lease term (in years)			2.5				1.2
Weighted-average discount rate			6	%			12	%

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

2022		$	216
2023			129
2024			130
Thereafter			—
Total future minimum lease payments			475
Less imputed interest			(29	)
Total		$	446
Reported as:
Operating lease liability		$	200
Operating lease liability- non-current			246
Total		$	446

X

- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980

+ Details

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Period Type:	duration

X

- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918701-209980

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_TableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration