Stock Based Compensation - Schedule of Option Activity (Details) - USD ($)	9 Months Ended
	Jul. 31, 2020	Jul. 31, 2019
Shares, Options outstanding, Beginning balance	1,698,000	1,780,000
Shares, Options, Forfeited/Expired
Shares, Options outstanding and Exercisable	1,698,000	1,780,000
Shares, Options outstanding, Ending balance
Weighted Average Exercise Price Per Share, Outstanding Beginning balance	$ 2.58	$ 1.58
Weighted Average Exercise Price Per Share, Outstanding and Exercisable	$ 2.58	$ 1.58
Weighted Average Exercise Price Per Share, Outstanding Ending balance
Aggregate Intrinsic Value, Outstanding and Exercisable	$ 348,090	$ 5,583,900
2003 Plan [Member]
Shares, Options outstanding, Beginning balance	400	12,000
Shares, Options, Exercised		(4,000)
Shares, Options, Forfeited/Expired	(400)
Shares, Options outstanding and Exercisable		8,000
Shares, Options outstanding, Ending balance		8,000
Weighted Average Exercise Price Per Share, Outstanding Beginning balance	$ 17.00	$ 2.77
Weighted Average Exercise Price Per Share, Exercised		3.63
Weighted Average Exercise Price Per Share, Forfeited/Expired	17.00
Weighted Average Exercise Price Per Share, Outstanding and Exercisable	$ 0	2.34
Weighted Average Exercise Price Per Share, Outstanding Ending balance		$ 2.34
Aggregate Intrinsic Value, Outstanding and Exercisable	$ 0	$ 23,694
2010 Plan [Member]
Shares, Options outstanding, Beginning balance	11,998,668	2,131,868
Shares, Options, Granted		10,000
Shares, Options, Exercised	(51,100)	(32,000)
Shares, Options, Forfeited/Expired	(20,534)	(99,200)
Shares, Options outstanding, Ending balance	11,927,034	2,010,668
Shares, Options outstanding, Exercisable	11,772,034	1,639,556
Weighted Average Exercise Price Per Share, Outstanding Beginning balance	$ 2.80	$ 2.11
Weighted Average Exercise Price Per Share, Granted		3.64
Weighted Average Exercise Price Per Share, Exercised	2.39	2.27
Weighted Average Exercise Price Per Share, Forfeited/Expired	1.72	3.78
Weighted Average Exercise Price Per Share, Outstanding Ending balance	2.82	2.03
Weighted Average Exercise Price Per Share, Exercisable	$ 2.84	$ 1.92
Aggregate Intrinsic Value, Outstanding Ending balance	$ 731,670	$ 5,422,886
Aggregate Intrinsic Value, Exercisable	$ 630,120	$ 4,609,165
2018 Plan [Member]
Shares, Options outstanding, Beginning balance	3,935,000	3,482,000
Shares, Options, Granted	800,000
Shares, Options, Exercised		(4,000)
Shares, Options, Forfeited/Expired	(258,376)	(8,000)
Shares, Options outstanding, Ending balance	4,476,624	3,470,000
Shares, Options outstanding, Exercisable	2,403,014	1,321,111
Weighted Average Exercise Price Per Share, Outstanding Beginning balance	$ 3.74	$ 3.73
Weighted Average Exercise Price Per Share, Granted	3.85
Weighted Average Exercise Price Per Share, Exercised		3.84
Weighted Average Exercise Price Per Share, Forfeited/Expired	3.86	3.84
Weighted Average Exercise Price Per Share, Outstanding Ending balance	3.76	3.73
Weighted Average Exercise Price Per Share, Exercisable	$ 3.76	$ 3.73
Aggregate Intrinsic Value, Outstanding Ending balance	$ 0	$ 3,337,300
Aggregate Intrinsic Value, Exercisable	$ 0	$ 1,273,443