Quarterly report pursuant to Section 13 or 15(d)

Investments - Schedule of Investment Securities at Amortized (Details)

v3.7.0.1
Investments - Schedule of Investment Securities at Amortized (Details) - USD ($)
9 Months Ended 12 Months Ended
Jul. 31, 2017
Oct. 31, 2016
Amortized cost, as adjusted $ 74,391,856 $ 39,336,548
Gross unrealized holding gains 2,404
Gross unrealized holding losses 51,142 7,806
Estimated fair value 74,340,714 39,331,146
Certificates of Deposit [Member]    
Amortized cost, as adjusted 17,185,953 10,737,563
Gross unrealized holding gains
Gross unrealized holding losses
Estimated fair value 17,185,953 10,737,563
Domestic Governmental Agency Loans [Member]    
Amortized cost, as adjusted 2,666,361 2,500,000
Gross unrealized holding gains
Gross unrealized holding losses 795 250
Estimated fair value 2,665,566 2,499,750
U.S Treasury Notes [Member]    
Amortized cost, as adjusted 54,539,542 26,098,985
Gross unrealized holding gains 2,404
Gross unrealized holding losses 50,347 7,556
Estimated fair value $ 54,489,195 $ 26,093,833