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Note 24 - Subsequent Events (Details Textual) - USD ($)	Apr. 01, 2020	Jan. 13, 2020	Apr. 13, 2020	Feb. 28, 2020	Feb. 24, 2020	Jan. 03, 2020	Dec. 31, 2019	Dec. 31, 2018
Preferred Stock, No Par Value (in dollars per share)							$ 0	$ 0
Forecast [Member] | Conversion to an Accounts Receivable [Member]
Debt Conversion, Original Debt, Amount	$ 482,000
Series A Preferred Stock [Member] | Forecast [Member] | Conversion to an Accounts Receivable [Member]
Debt Conversion, Converted Instrument, Shares Issued (in shares)	48,200
Second Purchase Agreement Amendment [Member] | Series A Preferred Stock Warrants [Member] | Forecast [Member]
Convertible Preferred Stock, Exercise Price (in dollars per share)			$ 1
Second Purchase Agreement Amendment [Member] | Series A Preferred Stock [Member] | Forecast [Member]
Sale of Stock, Shares Agreed to Purchase (in shares)			130,000
Shares Issued, Price Per Share (in dollars per share)			$ 10
Sale of Stock, Offering Amount			$ 1,300,000
Sale of Stock, Offering Fee, Percent			10.00%
Sale of Stock, Contingent Additional Offered Shares (in shares)			260,000
Subsequent Event [Member] | Purchase Agreement [Member] | Series A Preferred Stock [Member]
Sale of Stock, Shares Agreed to Purchase (in shares)						500,000
Preferred Stock, No Par Value (in dollars per share)						$ 0
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)						10
Shares Issued, Price Per Share (in dollars per share)						$ 10
Sale of Stock, Offering Amount						$ 5,000,000
Subsequent Event [Member] | First Closing of the Offering [Member] | Series A Preferred Stock Warrants [Member]
Convertible Preferred Stock, Exercise Price (in dollars per share)		$ 1
Subsequent Event [Member] | First Closing of the Offering [Member] | Series A Preferred Stock [Member]
Proceeds from Issuance or Sale of Equity, Total		$ 2,500,000
Sale of Stock, Offering Fee, Percent		10.00%
Subsequent Event [Member] | Purchase Agreement Amendment [Member] | Series A Preferred Stock Warrants [Member]
Convertible Preferred Stock, Exercise Price (in dollars per share)				$ 1
Subsequent Event [Member] | Purchase Agreement Amendment [Member] | Series A Preferred Stock [Member]
Sale of Stock, Shares Agreed to Purchase (in shares)					70,000
Shares Issued, Price Per Share (in dollars per share)					$ 10
Sale of Stock, Offering Amount					$ 700,000
Sale of Stock, Offering Fee, Percent				10.00%
Sale of Stock, Contingent Additional Offered Shares (in shares)					140,000
Subsequent Event [Member] | Additional Offering [Member] | Series A Preferred Stock [Member]
Shares Issued, Price Per Share (in dollars per share)						$ 10
Sale of Stock, Contingent Additional Offered Shares (in shares)						200,000

X

- Definition

The number of additional contingent offered shares in a sale of stock.

+ References

No definition available.

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+ References

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- Definition

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+ References

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+ References

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Number of shares issued for each share of convertible preferred stock that is converted.

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- Definition

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+ References

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- Definition

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