v3.26.1
Note 1 - Organization and Nature of Operations (Details Textual)
1 Months Ended 3 Months Ended
Apr. 21, 2026
USD ($)
$ / shares
shares
Mar. 09, 2026
USD ($)
$ / shares
shares
Feb. 06, 2026
USD ($)
$ / shares
shares
Aug. 15, 2025
$ / shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Feb. 28, 2026
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
$ / shares
shares
Oct. 17, 2025
shares
Jan. 13, 2025
shares
Stock, Shares Authorized (in shares) | shares                   510,000,000 70,000,000
Common Stock, Shares Authorized (in shares) | shares         500,000,000   500,000,000   500,000,000 500,000,000 60,000,000
Preferred Stock, Shares Authorized (in shares) | shares         10,000,000   10,000,000   10,000,000 10,000,000 10,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares       $ 0.0001 $ 0.0001   $ 0.0001   $ 0.0001    
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest             $ (1,690,000) $ (4,045,000)      
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation             (2,796,000) $ (2,338,000)      
Retained Earnings (Accumulated Deficit)         $ (311,216,000)   (311,216,000)   $ (309,535,000)    
Working Capital (Deficit)         (18,500,000)   (18,500,000)        
Cash and Cash Equivalent         $ 441,000   $ 441,000   $ 88,000    
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares         $ 0.0001   $ 0.0001   $ 0.0001    
Right to Purchase C-4 Preferred Stock [Member]                      
Warrants and Rights Outstanding   $ 39,200,000                  
Series C1 Convertible Preferred Stock [Member]                      
Preferred Stock, Shares Authorized (in shares) | shares         3,687   3,687   3,687    
Stock Issued During Period, Shares, New Issues (in shares) | shares         1,853 1,617          
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares         $ 0.0001   $ 0.0001   $ 0.0001    
Preferred Stock, Stated Value         $ 1,000   $ 1,000        
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares         $ 1.43   $ 1.43        
Series B Preferred Stock [Member]                      
Preferred Stock, Shares Authorized (in shares) | shares         3,000   3,000   3,000    
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares         $ 0.0001   $ 0.0001   $ 0.0001    
Preferred Stock, Convertible, Conversion Price (in dollars per share) | $ / shares     $ 1.78                
Proceeds from Decrease of Preferred Stock Conversion Price     $ 400,000                
Private Placement [Member]                      
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001     $ 0.0001          
Stock Issued During Period, Shares, New Issues (in shares) | shares     392,608     392,608          
Shares Issued, Price Per Share (in dollars per share) | $ / shares     $ 1.43     $ 1.43          
Proceeds from Issuance or Sale of Equity     $ 2,200,000     $ 2,200,000          
Payments of Stock Issuance Costs     200,000                
Proceeds from Issuance of Convertible Preferred Stock     $ 1,600,000                
Equity Issuable, Maximum Shares Ownable, Percent of Outstanding   19.99% 19.99%                
Private Placement [Member] | Series C1 Convertible Preferred Stock [Member]                      
Stock Issued During Period, Shares, New Issues (in shares) | shares   1,853 1,617     1,617          
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares   $ 0.0001 $ 0.0001                
Preferred Stock, Stated Value   $ 1,000 $ 1,000                
Payments of Stock Issuance Costs   100,000                  
Proceeds from Issuance of Convertible Preferred Stock   $ 1,900,000                  
Private Placement [Member] | Series C2 Convertible Preferred Stock [Member]                      
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares     $ 0.0001                
Preferred Stock, Stated Value     $ 1,000                
Private Placement [Member] | Series C2 Convertible Preferred Stock [Member] | Subsequent Event [Member]                      
Stock Issued During Period, Shares, New Issues (in shares) | shares 3,470                    
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares $ 0.0001                    
Preferred Stock, Stated Value $ 1,000                    
Payments of Stock Issuance Costs 300,000                    
Proceeds from Issuance of Convertible Preferred Stock 3,500,000                    
Proceeds from Issuance of Convertible Preferred Stock, Net $ 3,200,000                    
Private Placement [Member] | Series C4 Convertible Preferred Stock [Member]                      
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares   $ 0.0001 $ 0.0001                
Preferred Stock, Stated Value   $ 1,000 $ 1,000                
Maximum Value of Shares Issuable     $ 39,200,000                
Private Placement [Member] | Series C2 and C3 Convertible Preferred Stock [Member]                      
Stock Issued During Period, Shares, New Issues (in shares) | shares         1,617            
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares   $ 0.0001                  
Preferred Stock, Stated Value   $ 1,000                  
Proceeds from Issuance or Sale of Equity         $ 1,600,000            
Proceeds from Issuance of Convertible Preferred Stock   $ 1,900,000                  
Maximum Value of Shares Issuable         $ 39,200,000   $ 39,200,000        
Reverse Stock Split [Member]                      
Stockholders' Equity Note, Stock Split, Conversion Ratio       19              
FLYTE [Member]                      
Business Combination, Voting Equity Interest Acquired, Percentage   80.02% 19.98%                
Ponderosa Air [Member]                      
Business Combination, Voting Equity Interest Acquired, Percentage   100.00%