Equity (Details) - USD ($) $ / shares in Units, $ in Thousands																		1 Months Ended																																3 Months Ended				9 Months Ended
	Feb. 15, 2020	Jan. 13, 2020	Jan. 09, 2020	Jan. 08, 2020	Dec. 10, 2019	Nov. 14, 2019	Oct. 07, 2019	Sep. 10, 2019	Sep. 04, 2019	Aug. 26, 2019	Aug. 26, 2019	Aug. 12, 2019	Feb. 08, 2019	Nov. 14, 2018	Nov. 05, 2018	Nov. 02, 2018	Oct. 12, 2018	Apr. 30, 2020	Apr. 24, 2020	Apr. 02, 2020	Feb. 27, 2020	Feb. 27, 2020	Feb. 26, 2020	Feb. 24, 2020	Feb. 20, 2020	Feb. 19, 2020	Feb. 04, 2020	Jan. 28, 2020	Jan. 22, 2020	Jan. 16, 2020	Dec. 31, 2019	Dec. 24, 2019	Dec. 16, 2019	Nov. 30, 2019	Nov. 26, 2019	Nov. 19, 2019	Nov. 15, 2019	Oct. 31, 2019	Oct. 29, 2019	Oct. 27, 2019	Sep. 26, 2019	Aug. 20, 2019	Feb. 08, 2019	Feb. 05, 2019	Feb. 02, 2019	Nov. 29, 2018	Oct. 18, 2018	Sep. 28, 2018	Aug. 02, 2018	Jan. 31, 2020	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Apr. 30, 2020	Apr. 30, 2019
Equity (Textual)
Common stock, shares issued															16,883	200,000
Aggregate shares of common stock																																														39,444		21,672
Issuance of common stock, value															$ 5,875	$ 69,600																														$ 11,833					$ 150	$ 75	$ 47
Settle of accounts payables to professional															5,287																															10,545
Recognized loss upon issuance of shares																																																$ 507
Share amount																																																5,794
Accounts payables																																																$ 5,287
Maturity date																						Aug. 31, 2020
Accrued dividends																																																						$ 15
Recognized a loss															$ 587																															$ 1,288
Securities Purchase Agreement [Member]
Equity (Textual)
Secured amount														$ 75
Common stock, shares issued													600,000	258,621
Common stock price, per share													$ 0.25	$ 0.29																													$ 0.25
Maturity date																							Aug. 31, 2020
Accredited investor													$ 150,000
Private Placement [Member]
Equity (Textual)
Secured amount																																																	$ 40
Common stock, shares issued																																																	80,000
Common stock price, per share																																																	$ 0.50
Warrants to purchase of common stock																																																	15,000
Exercise price, per share																																																	$ 0.50
Promissory note [Member]
Equity (Textual)
Common stock, shares issued							400,000										140,000																														100,000
Exercise price, per share																	$ 0.15																														$ 0.15
Interest rate																	8.00%																														8.00%
Maturity date																	Nov. 12, 2018																														Nov. 18, 2018
Debt issuance amount																	$ 25,000																														$ 25,000
Recognized as discount promissory note																	$ 21,000																														$ 15,000
Common Stock [Member]
Equity (Textual)
Common stock, shares issued		549,858	200,000	785,760		301,697		277,291	250,620	250,000		114,123						14,138,826	3,208,955	3,208,955	2,500,000			11,509,022	40,000	110,027		474,891	1,698,717	705,128	517,598	444,672	520,833	80,000	447,917	537,635	398,247	310,527	465,736	332,667	342,466	191,116	400,000	60,715	325,000
Principal outstanding		$ 8,000	$ 1,328	$ 5,000		$ 7,500		$ 12,750	$ 10,000	$ 14,500	$ 14,500	$ 7,500							$ 20,000	$ 20,000	$ 15,000	$ 15,000						$ 6,000	$ 25,000	$ 10,500	$ 9,500	$ 8,000	$ 9,500		$ 8,000	$ 13,000	$ 9,500	$ 6,500	$ 13,500	$ 9,500	$ 14,500	$ 7,500
Administrative fees		500		500		500			$ 541	500		$ 500																			$ 500		$ 500		500	$ 500	$ 500		$ 500	$ 500	$ 500
Accrued interest						$ 146		$ 3,888										$ 38,164	$ 1,500	$ 1,500	$ 1,500					$ 4,290		500				500			$ 100			$ 2,834				$ 538
Aggregate shares of common stock																																																			600,000	258,621	80,000
Issuance of common stock, value																																		$ 3,200									$ 100,000	$ 13,357	$ 78,000						$ 1
Settle of accounts payables to professional																																												10,382
Conversion fees		$ 78	$ 2,212	$ 8,408																								$ 25	$ 1,500	$ 500		$ 171
Recognized a loss																																												$ 2,975
Fair market value																									$ 800
Stock-based compensation expense																								$ 233,633
Debt settlement																		386,000																																				$ 386,000
Gain in settlement of debt																		$ 134,319
Common Stock One [Member]
Equity (Textual)
Common stock, shares issued	200,000				400,000						416,666															260,000	2,054,263	956,226						282,885				831,669
Principal outstanding	$ 10,000									$ 25,000	$ 25,000																$ 25,000	$ 9,250										$ 25,000
Accrued interest																											$ 1,500	500						$ 14,382
Issuance of common stock, value					$ 15,240
Conversion fees																												$ 3,962
Non cash expenses benefit	$ 4,600
Fair market value																										$ 6,890
Series A Convertible Preferred stock [Member]
Equity (Textual)
Common stock, shares issued																																		25,000
Aggregate shares of common stock																																		86,667
Accrued dividends																																		$ 1,189