Quarterly report pursuant to Section 13 or 15(d)

Supplementary Statement of Cash Flows Information - Schedule of Supplementary Statement of Cash Flows Information (Detail)

v3.21.2
Supplementary Statement of Cash Flows Information - Schedule of Supplementary Statement of Cash Flows Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Supplemental Cash Flow Elements [Abstract]    
Preferred Stock common stock dividend (note 7)   $ 5
Deemed dividend recognized on beneficial conversion features of Series C Preferred stock issuance (note 7)   3,181
Non-cash issue costs (note 7) $ 333 3,287
Issue costs in accounts payable and accrued liabilities 169 193
Preferred Stock Series C    
Supplemental Cash Flow Elements [Abstract]    
Preferred Stock common stock dividend (note 7) 2,462  
Deemed dividend recognized on beneficial conversion features of Series C Preferred stock issuance (note 7) $ 3,181  
Series B Preferred Stock    
Supplemental Cash Flow Elements [Abstract]    
Preferred Stock common stock dividend (note 7)   $ 5