Quarterly report pursuant to Section 13 or 15(d)

Note 16 - Subsequent Events (Details Textual)

v3.22.2.2
Note 16 - Subsequent Events (Details Textual) - USD ($)
Aug. 11, 2022
Aug. 03, 2022
Jul. 01, 2022
Apr. 10, 2022
Jun. 30, 2022
Subsequent Event [Member]          
Shares Issued, Price Per Share (in dollars per share)   $ 1,000      
Proceeds from Issuance or Sale of Equity, Total   $ 35,000,000.0      
API Agreement, Reimbursement Payments $ 1,850,000        
API Agreement, Accelerated Reimbursement Payments $ 800,000        
Subsequent Event [Member] | Series I Preferred Stock [Member]          
Convertible Preferred Stock, Shares Issued upon Conversion (in shares)   1,538      
Proceeds from Issuance or Sale of Equity, Total   $ 35,000,000.0      
Bridge Loan [Member]          
Proceeds from Issuance of Long-Term Debt, Total       $ 1,500,000  
Long-Term Debt, Total         $ 1,500,000
Bridge Loan [Member] | Subsequent Event [Member]          
Proceeds from Issuance of Long-Term Debt, Total     $ 1,000,000.0    
Long-Term Debt, Total     $ 2,500,000