Note 10 - Convertible Note - Schedule of Maturity of Convertible Note (Details) - Iliad Research and Trading, L.P. [Member] - Secured Convertible Promissory Note [member] $ in Thousands	Mar. 31, 2020 USD ($)
2020	$ 998
2021 and thereafter
Total	$ 998

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Balance Type:	credit
Period Type:	instant