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Note 5 - Line of Credit and Long-term Debt (Details Textual) - USD ($)
1 Months Ended 9 Months Ended 12 Months Ended
Oct. 13, 2023
Apr. 12, 2021
Jun. 03, 2016
Aug. 14, 2012
Aug. 14, 2012
Apr. 30, 2021
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Mar. 31, 2020
Aug. 09, 2024
Aug. 14, 2023
Mar. 31, 2023
Dec. 31, 2022
Dec. 14, 2022
Apr. 30, 2019
Interest Paid, Excluding Capitalized Interest, Operating Activities             $ 478,000 $ 420,000                
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Prime Rate [Member] Prime Rate [Member] Prime Rate [Member] Prime Rate [Member]                        
Unsecured Subordinated Loan [Member]                                
Long-Term Debt, Gross             $ 1,000,000   $ 1,000,000              
Term Loan Agreement, Maturing on August 14, 2032 [Member]                                
Debt Instrument, Basis Spread on Variable Rate         1.00%                      
Proceeds from Issuance of Debt       $ 5,500,000                        
Debt Instrument Interest Payment Period (Month)       12 months                        
Debt Instrument Amortization Period (Year)       19 years                        
Debt Instrument, Reference Rate             8.00%   8.50%              
Long-term Debt and Capital Lease Obligations, Current and Noncurrent             $ 3,025,000   $ 3,220,000              
Debt Instrument, One Time Origination and Guaranty Fees             $ 214,500                  
Debt Instrument Annual Renewal Fee Payable Percentage             0.25%                  
Debt Instrument Guaranteed Portion             80.00%                  
Debt Issuance Costs, Current, Net             $ 70,000   $ 80,000              
Term Loan Agreement, Promissory Note One [Member]                                
Proceeds from Issuance of Debt       $ 2,250,000                        
Term Loan Agreement, Promissory Note Two [Member]                                
Proceeds from Issuance of Debt       $ 3,250,000                        
Skywords Note [Member]                                
Debt Instrument, Basis Spread on Variable Rate             1.00%                  
Debt Instrument, Reference Rate             8.00%   8.50%              
Repayments of Long-term Debt, Total   $ 500,000       $ 500,000                    
Interest Paid, Excluding Capitalized Interest, Operating Activities   $ 1,900       1,900                    
Skywords Note [Member] | Unsecured Subordinated Loan [Member]                                
Debt Instrument, Basis Spread on Variable Rate                   1.00%            
Debt Instrument, Face Amount                               $ 1,500,000
Long-term Debt, Current Maturities, Total           $ 500,000                    
Long-Term Debt, Gross             $ 1,000,000   $ 1,000,000              
Skywords Amended Note [Member]                                
Debt Instrument, Basis Spread on Variable Rate   1.00%                            
Debt Instrument, Floor Interest Rate   5.00%       5.00%                    
Debt Instrument, Face Amount   $ 500,000                         $ 1,000,000  
Minimum [Member] | Term Loan Agreement, Maturing on August 14, 2032 [Member]                                
Debt Instrument, Interest Rate During Period         5.50%                      
Minimum [Member] | Skywords Note [Member]                                
Debt Instrument, Interest Rate During Period             5.00%                  
First Foundation Bank [Member] | Term Loan, Converted From Line of Credit [Member]                                
Debt Instrument, Basis Spread on Variable Rate 2.00%                              
Debt Instrument, Periodic Payment $ 40,000                              
Debt Instrument, Floor Interest Rate 7.00%                              
Debt Instrument, Interest Rate During Period             7.50%   8.50%              
First Foundation Bank [Member] | Minimum [Member]                                
Debt Instrument, Interest Rate, Stated Percentage     5.25%                          
First Foundation Bank [Member] | Revolving Credit Facility [Member]                                
Debt Instrument, Basis Spread on Variable Rate     2.00%                          
Line of Credit, Current $ 1,480,000           $ 890,000   $ 1,240,000              
Line of Credit Facility, Maximum Borrowing Capacity                         $ 2,000,000      
Related Party 1 [Member] | Revolving Credit Facility [Member]                                
Debt Instrument, Interest Rate, Stated Percentage             8.00%   8.50%              
Line of Credit Facility, Maximum Borrowing Capacity             $ 4,000,000 $ 2,000,000     $ 4,000,000 $ 2,000,000   $ 1,000,000    
Lines of Credit, Related Party, Current             $ 2,750,000   $ 1,250,000