Consolidated Statements of Changes in Equity (Parentheticals) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($)
Private Placement [Member] \| Investor Warrants [Member]
Proceeds allocated to warrant liabilities	$ 1,746
Private Placement [Member] \| Private Placement Agent Costs [Member]
Proceeds allocated to warrant liabilities	305
Investor Costs [Member]
Direct offering costs	1,055
Private Placement Agent Costs [Member]
Direct offering costs	750
Investor Warrants [Member]
Proceeds allocated to warrant liabilities	1,279
Proceeds allocated to warrant liabilities	$ 1,505

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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