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Long-Term Debt (Tables)
 12 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]  
Schedule of Long-term Debt

Long-term debt consisted of the following (in thousands):

 

        September 30,  
        2017     2016  
                 
Notes payable at 10-11%, mature August 2022 and December 2024   *   $ 2,358     $ 2,662  
Note payable at 7%, matures December 2019   *     95       133  
Notes payable at 5.5%, matures January 2023   *     1,157       1,238  
Notes payable at 5.5%, matures January 2023 and January 2022   *     4,510       4,864  
Note payable refinanced at 6.25%, matures July 2018   *     1,120       1,227  
Note payable at 6.3%, matures June 2030, collateralized by aircraft         -       422  
Note payable at 9.5%, matures August 2024   **     6,941       10,642  
Notes payable at 9.5%, mature September 2024   *     6,423       7,040  
6% convertible debentures, mature March 2023   **     -       406  
Notes payable at 13%, matures October 2016 and 2017   **     -       4,000  
Notes payable at 5-7%, mature from 2018 to 2028   *     1,679       1,867  
Note payable at 11%, matures June 2018   *     -       1,500  
9% convertible debentures mature October 2016         -       452  
7.45% note payable collateralized by aircraft, matures January 2019         2,740       3,013  
Notes payable at 12%, mature December 2017 and September 2018   **     -       4,000  
Non-interest-bearing debt to State of Texas, matures May 2022, interest imputed at 9.6%         5,613       6,201  
Note payable at 6.5%, matures January 2020   *     4,484       4,621  
Note payable at 6%, matures January 2019   *     504       857  
Notes payable at 5.5%, matures May 2020   *     5,320       5,493  
Note payable at 6%, matures May 2020   *     1,037       1,386  
Note payable at 5.25%, matures December 2024   *     1,777       1,842  
Note payable at 5.45%, matures July 2020   *     10,620       10,962  
Note payable at the greater of 2% above prime or 5% (6.25% at September 30, 2017), matures October 2025   *     4,303       4,430  
Note payable at 5%, matures January 2026   *     9,672       9,882  
Note payable at 5.25%, matures March 2037   *     4,651       4,442  
Note payable at 5%, matures July 2017   *     -       2,157  
Note payable at 6.25%, matures February 2018   *     1,894       1,894  
Note payable at 5.95%, matures August 2021   *     8,267       8,945  
Note payable at 12%, matures October 2021   **     9,671       -  
Note payable at 4.99%, matures April 2037, collateralized by aircraft         941       -  
Notes payable at 12%, mature May 2020   **     5,440       -  
Note payable at 5%, matures November 2017   **     5,000          
Note payable at 8%, matures May 2029   **     15,291       -  
Note payable at 5%, matures May 2038   *     3,441       -  
Total debt         124,949       106,578  
Less unamortized debt issuance costs         (597 )     (692 )
Less current portion         (17,440 )     (9,950 )
                     
Total long-term debt       $ 106,912     $ 95,936  

 

* Collateralized by real estate

** Collateralized by stock in subsidiary
Schedule of Long-term Debt Instruments

Following is a summary of long-term debt at September 30 (in thousands):

 

    2017     2016  
Secured by real estate   $ 73,312     $ 76,204  
Secured by stock in subsidiary     42,343       19,048  
Secured by other assets     3,681       3,435  
Unsecured     5,613       7,891  
    $ 124,949     $ 106,578  
Schedule of Warrants Valuation Assumptions

The fair value of the warrants was estimated to be $105,318 using a Black-Scholes option-pricing model using the following weighted average assumptions:

 

Volatility     28 %
Expected life     1.5 years  
Expected dividend yield     -  
Risk free rate     0.33 %
Schedule of Maturities of Long-term Debt

Future maturities of long-term debt consist of the following, net of debt discount (in thousands):

 

    Regular     Balloon     Total  
    Amortization     Payments     Payments  
2018   $ 9,512     $ 7,928     $ 17,440  
2019     9,653       2,370       12,023  
2020     8,270       24,816       33,086  
2021     6,116       5,285       11,401  
2022     4,923       8,317       13,240  
Thereafter     23,314       14,445       37,759  
    $ 61,788     $ 63,161     $ 124,949