Acquisitions - Estimated amortization expenses (Details) - USD ($)			12 Months Ended
	Oct. 03, 2019	Aug. 02, 2019	Jul. 31, 2020
Developed Software/Technology [Member]
Average Estimated Life			5 years
Noncompete Agreements [Member]
Average Estimated Life			3 years
Preliminary Fair Value
Total	$ 811,000	$ 1,112,600
Preliminary Fair Value | Developed Software/Technology [Member]
Total	$ 131,000
Average Estimated Life	5 years
Preliminary Fair Value | Referral Base [Member]
Total	$ 0
Average Estimated Life	15 years
Preliminary Fair Value | Noncompete Agreements [Member]
Total	$ 680,000	$ 356,700
Average Estimated Life	3 years	3 years