Acquisition of Hema Diagnostics Systems, LLC - Net purchase price of HDS (Details) - USD ($)	6 Months Ended
	Jan. 18, 2017	Jan. 31, 2018	Jul. 31, 2017	Feb. 09, 2017
Purchase price:
Shares	53,211	1,068,101	1,068,101	103,809
At Closing
Purchase price:
Stock Price at Closing	$ 4.77
Shares	53,191
Fair Value	$ 253,721
After Closing
Purchase price:
Stock Price at Closing	$ 4.77
Shares	20
Fair Value	$ 95
Post Reverse Stock Split
Purchase price:
Stock Price at Closing	$ 4.77
Shares	230,000
Fair Value	$ 1,097,100
Net Purchase Price
Purchase price:
Fair Value	$ 1,350,916