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Financial Statement Presentation - Textual (Details)
1 Months Ended 9 Months Ended
Dec. 11, 2020
USD ($)
Nov. 24, 2020
USD ($)
Apr. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
New Accounting Pronouncements or Change in Accounting Principle        
Minimum debt service coverage ratio       1.25
Minimum net worth required for compliance       $ 15,000,000
AIRT Small Business Administration S B A C A R E S Act Paycheck Protection Program        
New Accounting Pronouncements or Change in Accounting Principle        
Payments for (proceeds from) loans and leases     $ 8,200,000  
Term Loan G - ONB        
New Accounting Pronouncements or Change in Accounting Principle        
Principle amount   $ 43,600,000    
Debt instrument, periodic payment, principal percentage   15.00%    
Debt instrument, capitalized interest rate   15.00%    
Debt instrument fee, origination fee percentage   2.00%    
Term Loan - PSB        
New Accounting Pronouncements or Change in Accounting Principle        
Principle amount $ 6,200,000      
Debt instrument, periodic payment, principal percentage 15.00%      
Debt instrument fee, origination fee percentage 2.00%      
London Interbank Offered Rate (LIBOR) | Term Loan G - ONB        
New Accounting Pronouncements or Change in Accounting Principle        
Basis spread on variable rate   3.00%    
London Interbank Offered Rate (LIBOR) | Term Loan - PSB        
New Accounting Pronouncements or Change in Accounting Principle        
Basis spread on variable rate 3.00%