Shareholders' Equity (Details Narrative) - USD ($)		3 Months Ended		6 Months Ended
	Dec. 21, 2018	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018	Jul. 31, 2018
Subsidiary, Sale of Stock [Line Items]
Common stock share outstanding		140,900,655		140,900,655		79,007,423
Common stock shares issued		140,900,655		140,900,655		79,007,423
Dividends, preferred stock
Common stock par value		$ 0.01		$ 0.01		$ 0.01
Number of common stock issued during period, value		$ 600,000
Accrued interest						$ 1,223,000
Rent payable	$ 115,000
Purchase Agreement [Member] | Dr. Philip Frost, and Jane Hsiao [Member]
Subsidiary, Sale of Stock [Line Items]
Number of common stock issued during period	8,571,428
Common stock par value	$ 0.01
Common stock price per shares	$ 0.07
Number of common stock issued during period, value	$ 600,000
Debt Exchange Agreement [Member] | Frost Gamma Investments Trust [Member]
Subsidiary, Sale of Stock [Line Items]
Number of common stock issued during period	50,584,413
Notes payable	$ 2,225,000
Accrued interest	$ 1,316,000
Debt Exchange Agreement [Member] | Hsu Gamma Investments LP and Frost Gamma Investments Trust [Member]
Subsidiary, Sale of Stock [Line Items]
Number of common stock issued during period	2,737,391
Common stock price per shares	$ 0.07
Rent payable	$ 192,000
Debt exchange price per shares	$ 0.09
Debt extinguishment amount	$ 1,066,000
Series B Preferred Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Preferred stock liquidation preference, per share value		$ 100		$ 100
Dividends payable amount per share		10		10
Series C Preferred Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Preferred stock liquidation preference, per share value		1.00		1.00
Dividends payable amount per share		0.10		0.10
Preferred stock, redemption price per share		$ 0.10		$ 0.10
Convertible preferred stock, shares issued upon conversion		25		25
Preferred stock conversion premium price per share		$ 4.20		$ 4.20
Preferred stock, conversion basis				Each share of Series C Preferred Stock is convertible into 25 shares of the Company's common stock upon payment of a conversion premium of $4.20 per share of common stock.
Series D Preferred Stock [Member]
Subsidiary, Sale of Stock [Line Items]
Preferred stock liquidation preference, per share value		$ 1,500		$ 1,500
Convertible preferred stock, shares issued upon conversion		5,000		5,000
Preferred stock, conversion basis				Each share of Series D Preferred Stock is convertible into 5,000 shares of the Company's common stock.
Series D Preferred Stock [Member] | February 2019 [Member]
Subsidiary, Sale of Stock [Line Items]
Common stock share outstanding		2,782		2,782
Common stock shares issued		13,910,000		13,910,000