Consolidated Statement of Stockholders' Equity (Parentheticals) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Common Stock [Member]
Shares issued, offering cost per share (in dollars per share)	$ 5.00
Additional Paid-in Capital [Member]
Shares issued, offering cost	$ 762,875
Shares issued, offering cost per share (in dollars per share)		$ 7.25
Shares issued, offering cost		$ 1,548,161
Prefunded warrants, transferred to equity (in shares)	515,000

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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