Note 4 - Debt and Liabilities (Details Textual)	Apr. 13, 2020 USD ($)
JPMorgan Chase Bank N.A [Member] \| Paycheck Protection Program CARES Act [Member]
Debt Instrument, Face Amount	$ 2,004,175

Face (par) amount of debt instrument at time of issuance.

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Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant