Note 6 - Debt	3 Months Ended
Jul. 31, 2018
Notes to Financial Statements
Debt Disclosure [Text Block]	6. Debt: At July 31, 2018, the Company was utilizing a promissory note in the form of a line of credit totaling $5.0 million. The unused line at July 31, 2018 was $3.3 million. These funds were primarily used for the purchase of inventories and aircraft modification Supplemental Type Certificate ("STC") development costs for modifications and avionics. The line of credit is due on demand and is collateralized by the first and second positions on all assets of the Company. At July 31, 2018, there was one note with an interest rate of 5.75% collateralized by aircraft security agreements totaling $233. This note was used for the purchase and modifications of collateralized aircraft. This note matures in January 2020. At July 31, 2018, there are three notes at a bank totaling $200 collateralized by real estate located in Olathe, Kansas and Tempe, Arizona. The interest rates on these notes range from 3.36% to 4.46%. The due date for the notes is March 2019. At July 31, 2018, there is one note totaling $255 collateralized by real estate in Dodge City, Kansas. The interest rate on this note is 6.25%. This note matures in June 2019. At July 31, 2018, there is one note collateralized by equipment with a balance of $76. The interest rate on this note is 4.5%. This note matures in April 2022. At July 31, 2018, there is one note at a bank totaling $2.2 million with an interest rate of 4.89%. The proceeds were used primarily to pay off obligations with BHCI (a non-controlling owner of BHCMC, LLC). This note matures in May 2020. We are not in default of any of our notes as of July 31, 2018. We believe that our current banks will provide the necessary capital for our business operations. However, we continue to maintain contact with other banks that have an interest in funding our working capital needs to continue our growth in operations in 2019 and beyond.

Debt: At

July 31, 2018,

the Company was utilizing a promissory note in the form of a line of credit totaling

$5.0

million. The unused line at

July 31, 2018

was

$3.3

million. These funds were primarily used for the purchase of inventories and aircraft modification Supplemental Type Certificate ("STC") development costs for modifications and avionics. The line of credit is due on demand and is collateralized by the

first

and

second

positions on all assets of the Company.

July 31, 2018,

there was

one

note with an interest rate of

5.75%

collateralized by aircraft security agreements totaling

$233.

This note was used for the purchase and modifications of collateralized aircraft. This note matures in

January 2020.

July 31, 2018,

there are

three

notes at a bank totaling

$200

collateralized by real estate located in Olathe, Kansas and Tempe, Arizona. The interest rates on these notes range from

3.36%

4.46%.

The due date for the notes is

March 2019.

July 31, 2018,

there is

one

note totaling

$255

collateralized by real estate in Dodge City, Kansas. The interest rate on this note is

6.25%.

This note matures in

June 2019.

July 31, 2018,

there is

one

note collateralized by equipment with a balance of

$76.

The interest rate on this note is

4.5%.

This note matures in

April 2022.

July 31, 2018,

there is

one

note at a bank totaling

$2.2

million with an interest rate of

4.89%.

The proceeds were used primarily to pay off obligations with BHCI (a non-controlling owner of BHCMC, LLC). This note matures in

May 2020.

We are

not

in default of any of our notes as of

July 31, 2018.

We believe that our current banks will provide the necessary capital for our business operations. However, we continue to maintain contact with other banks that have an interest in funding our working capital needs to continue our growth in operations in

2019

and beyond.