Acquisition of Hema Diagnostics Systems, LLC (Tables)

3 Months Ended

Oct. 31, 2018

Business Combinations [Abstract]

Net purchase price of HDS

	Stock Price at Closing		Shares		Fair Value
Purchase price:
Common Stock at closing	$	.23		1,117,011	$	253,721
Common Stock after closing	$	.23		420		95
Common Stock post reverse stock split	$	.23		4,830,000		1,097,100
Total purchase price				5,947,431	$	1,350,916

Fair Value Assumptions Used in Accounting for Warrants

	October 31, 2018			July 31, 2018
Exercise price		2.50			2.50
Time to expiration		3.26 years			3.47 years
Risk-free interest rate		3.15	%		2.77	%
Estimated volatility		135.07	%		143.97	%
Dividend		—			—
Stock price at valuation date	$	0.47		$	0.1

Fair Value Assumptions Used in Accounting for Call Options

	October 31, 2018			July 31, 2018
Risk-free interest rate		2.49	%		2.44	%
Estimated volatility		128.52	%		129.95	%
Remaining Term		1.22 years			1.47 years
Stock price at valuation date	$	0.4975		$	0.0976