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Note 7 - Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

Lease, Cost [Table Text Block]

		Three Months Ended June 30,								Six Months Ended June 30,
		2021				2020				2021				2020
Lease cost:
Operating lease cost		$	29			$	29			$	58			$	58
Variable lease cost			7				7				14				14
Short-term lease cost			—				4				—				9
Total		$	36			$	40			$	72			$	81

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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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