XML 54 R48.htm IDEA: XBRL DOCUMENT v3.22.2.2
Note 14 - Subsequent Events (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Sep. 16, 2022
Sep. 13, 2022
Aug. 10, 2022
Oct. 12, 2022
Jun. 30, 2022
Stock Repurchased and Retired During Period, Value         $ 346,836
Common Stock, Dividends, Per Share, Declared (in dollars per share)         $ 0.50
Subsequent Event [Member]          
Common Stock, Dividends, Per Share, Declared (in dollars per share)     $ 0.50    
Subsequent Event [Member] | Loan Seccured By M/V Rena P and M/V Emmanuel P [Member]          
Proceeds from Issuance of Debt $ 19,250,000        
Subsequent Event [Member] | Loan Seccured By M/V Rena P and M/V Emmanuel P [Member] | HSBC Bank [Member]          
Line of Credit Facility, Maximum Borrowing Capacity   $ 19,250,000      
Debt Instrument, Maximum Loan Amount, Percent of Vessel Value   55.00%      
Proceeds from Issuance of Debt   $ 19,250,000      
Debt Instrument, Periodic Payment, Total   1,000,000.0      
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid   $ 9,250,000      
Subsequent Event [Member] | Loan Seccured By M/V Rena P and M/V Emmanuel P [Member] | HSBC Bank [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]          
Debt Instrument, Basis Spread on Variable Rate   1.95%      
Share Repurchase Program [Member]          
Stock Repurchased and Retired During Period, Shares (in shares)         14,602
Stock Repurchased and Retired During Period, Value         $ 350,000
Forecast [Member] | Share Repurchase Program [Member]          
Stock Repurchased and Retired During Period, Shares (in shares)       124,339  
Stock Repurchased and Retired During Period, Value       $ 2,700,000