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Note 12 - Commitments and Contingencies (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Operating Lease, Expense	$ 14,700		$ 29,400
Operating Lease, Weighted Average Remaining Lease Term (Year)	9 years 146 days		9 years 146 days
Operating Lease, Weighted Average Discount Rate, Percent	11.30%		11.30%
Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year	$ 40,200		$ 40,200
Lessee, Operating Lease, Liability, to be Paid, Year One	19,400		19,400
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	15,400	$ 11,500	15,400	$ 11,500
Operating Lease, Payments	$ 14,700	$ 14,200	$ 29,400	$ 28,200

X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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X

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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- Definition

Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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X

- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

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-Publisher FASB
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-Topic 842
-SubTopic 20
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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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Weighted average discount rate for operating lease calculated at point in time.

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X

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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