Shareholders' Equity (Details Narrative) - USD ($)		3 Months Ended			9 Months Ended
	Dec. 21, 2018	Apr. 30, 2019	Jan. 31, 2019	Apr. 30, 2018	Apr. 30, 2019	Apr. 30, 2018	Jul. 31, 2018
Subsidiary, Sale of Stock [Line Items]
Stock redemption, amount		$ (25,000)
Common stock share outstanding		154,810,655			154,810,655		79,007,423
Common stock shares issued		154,810,655			154,810,655		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
Stock redemption, shares
Stock redemption, amount
Number of common stock issued during period
Number of common stock issued during period, value
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.
Stock redemption, shares		62,048			62,048
Stock redemption, amount		$ (62,000)			$ 24,819
Share price per share		$ 0.40			$ 0.40
Number of common stock issued during period
Number of common stock issued during period, value
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.
Stock redemption, shares
Stock redemption, amount
Number of common stock issued during period
Number of common stock issued during period, value
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