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Note 10 - Capital Lease
9 Months Ended
Jan. 31, 2019
Notes to Financial Statements  
Debt and Capital Leases Disclosures [Text Block]
10.
Capital Lease
 
The Company leases a hangar and office space under a long-term lease.
 
Included in land and building are the following assets held under capital lease:
   
January 31, 2019
 
Building
  $
1,699
 
Less accumulated depreciation
   
3
 
Total
  $
1,696
 
 
Future minimum lease payments for assets under capital leases at
January 31, 2019
are as follows:
2020
  $
93
 
2021
   
93
 
2022
   
93
 
2023
   
93
 
2024
   
93
 
Thereafter
   
4,159
 
Total minimum lease payments
   
4,624
 
Less amount representing interest
   
2,925
 
Present value of net minimum lease payments
   
1,699
 
Less current maturities of capital lease obligation
   
8
 
Long-term capital lease obligation
  $
1,691