v3.20.2
Capital Stock - Additional Information (Detail)
1 Months Ended 6 Months Ended 12 Months Ended
Sep. 30, 2019
USD ($)
shares
Jan. 09, 2019
USD ($)
$ / shares
shares
Jan. 31, 2018
$ / shares
shares
Jun. 30, 2020
USD ($)
Director
FormerExecutive
shares
Mar. 31, 2020
USD ($)
ConvertibleNote
$ / shares
shares
Oct. 31, 2019
USD ($)
$ / shares
shares
Mar. 31, 2019
USD ($)
$ / shares
shares
Aug. 01, 2020
USD ($)
shares
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
shares
Feb. 01, 2020
USD ($)
Subsidiary Sale Of Stock [Line Items]                      
Warrants exercisable into shares of common stock | shares     570,287                
Exercise price of warrants, per share | $ / shares     $ 9.15                
Fair value assumption,expected term               5 years      
(Loss) gain on debt conversion               $ 13,642,000 $ (9,000)    
Aggregate proceeds from exercise of warrants                 $ 1,154,000    
Promissory note principal amount $ 24,200,000       $ 1,800,000     $ 4,848,000   $ 16,359,000 $ 16,359,000
Debt exchange conversion units | shares     570,287                
Fair value assumption, risk-free interest rates, minimum               0.20%      
Fair value assumption, risk-free interest rates, maximum               0.30%      
Debt conversion, description         Company entered into an additional debt restructuring that resulted in the conversion of debt with an aggregate principal amount of $7,492,000 and accrued interest of $691,000 into common stock of the Company. The carrying value of the debt and related derivative liability at the time of extinguishment amounted to $8,341,000. The aggregate total of $8,183,000 was converted into 48,136,000 shares of common stock at $0.17 per share.            
Debt conversion, aggregate principal amount         $ 7,492,000 $ 7,800,000          
Debt conversion, accrued interest         691,000            
Debt aggregate conversion amount         8,183,000            
Number of outside directors | Director       2              
Number of former executives | FormerExecutive       3              
Board of Directors [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Common stock issued | shares               2,950,000      
Common stock issued, value               $ 390,000      
Common Stock [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Fair value assumption, expected volatility               95.00%      
(Loss) gain on debt conversion         $ 6,472,000            
Debt exchange conversion units | shares         48,136,000            
Debt exchange conversion price per unit | $ / shares         $ 0.17            
Debt and related derivative liability at the time of extinguishment         $ 8,341,000            
Combined value of stock issued in conversion         $ 1,869,000            
Common stock issued | shares         10,684,000            
Common Stock [Member] | Board of Directors [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Common stock issued | shares       804,000,000              
Common stock issued, value       $ 106,000              
Common Stock [Member] | Former Executive                      
Subsidiary Sale Of Stock [Line Items]                      
Common stock issued | shares       278,000,000              
Common stock issued, value       $ 27,000              
Common Stock [Member] | Other Expenses [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Common stock issued | shares                   10,400,000  
Common stock issued, value                   $ 415,000  
Common Stock [Member] | Simply Mac, Inc. [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Common stock issued | shares         10,400,000            
Settlement Agreement with Vendor [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Amount owed by vendor   $ 164,000                  
Issuance of restricted common shares | shares   93,448                  
Warrants exercisable into shares of common stock | shares   93,448         382,165        
Exercise price of warrants, per share | $ / shares   $ 1.64                  
Warrants exercisable beginning date   Jul. 09, 2019                  
Warrants exercisable expiration date   Jan. 09, 2022                  
Fair value of warrants estimated on the date of issuance   $ 59,000                  
Combined value of the stock and warrants   173,000                  
(Loss) gain on debt conversion   (9,000)                  
Strike price per share | $ / shares             $ 3.02        
Aggregate proceeds from exercise of warrants             $ 1,154,000        
Settlement Agreement with Vendor [Member] | Restricted Stock Award [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Fair value of restricted stock estimated on the date of issuance   $ 114,000,000                  
Fair value assumption, discount rate   25.00%                  
Fair value assumption, risk-free interest rates   2.52%                  
Fair value assumption,expected term   6 months                  
Fair value assumption, expected volatility   90.00%                  
Settlement Agreement with Vendor [Member] | Warrants [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Fair value assumption, risk-free interest rates   2.54%                  
Fair value assumption,expected term   3 years                  
Fair value assumption, expected volatility   90.00%                  
Settlement Agreement with Vendor [Member] | Common Stock [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Preferred stock convertible into common stock | shares 297,000                    
Exchange [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
(Loss) gain on debt conversion         $ 204,000            
Promissory note principal amount         434,000 7,852,000          
Promissory notes accrued interest         8,000 668,000          
Carrying value of extinguishment of debt           7,461,000          
Debt exchange conversion aggregate amount         $ 35,000 $ 8,520,000          
Warrants exercisable expiration period           3 years          
Number of convertible notes exchanged into common stock | ConvertibleNote         2            
Exchange [Member] | Warrants [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Exercise price of warrants, per share | $ / shares           $ 0.51          
Fair value of warrants estimated on the date of issuance           $ 3,713,000          
Fair value assumption,expected term           3 years          
Fair value assumption, expected volatility           70.00%          
Combined value of the stock and warrants           $ 12,177,000          
(Loss) gain on debt conversion           (4,048,000)          
Debt exchange conversion aggregate amount           $ 8,464,000          
Each unit comprised of common stock and warrant to purchase number of common share | shares           15,396,000          
Fair value assumption, risk-free interest rates, minimum           1.50%          
Fair value assumption, risk-free interest rates, maximum           1.70%          
Exchange [Member] | Common Stock [Member]                      
Subsidiary Sale Of Stock [Line Items]                      
Debt exchange conversion units | shares         868,000 16,706,000          
Debt exchange conversion price per unit | $ / shares         $ 0.51 $ 0.51