Long-Term Debt - Mortgage (Schedule of long-term debt) (Details) - USD ($) |
9 Months Ended | ||
|---|---|---|---|
Apr. 30, 2018 |
Jul. 31, 2017 |
Jan. 09, 2015 |
|
| Less: Deferred financing costs | |||
| Due After One Year, Total | $ 5,301,391 | $ 5,409,908 | |
| Bond St.Building Brooklyn NY Two [Member] | |||
| Mortgage: | |||
| Due Within One Year | 167,002 | 162,569 | |
| Due After One Year | 5,341,439 | 5,467,110 | |
| Less: Deferred financing costs | |||
| Due Within One Year | |||
| Due After One Year | 40,048 | 57,202 | |
| Due Within One Year, Total | 167,002 | 162,569 | |
| Due After One Year, Total | $ 5,301,391 | $ 5,409,908 | |
| Current Annual Interest Rate | 3.54% | 3.54% | 3.54% |
| Final Payment Date | Feb. 01, 2020 |