Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Restricted Stock (Details)

v3.21.2
Stockholders' Equity - Restricted Stock (Details) - USD ($)
1 Months Ended 12 Months Ended
Nov. 30, 2019
Jun. 18, 2019
Sep. 30, 2018
Apr. 30, 2021
Sep. 02, 2020
Apr. 30, 2020
Apr. 29, 2015
Stockholders Equity [Line Items]              
Restricted shares granted, value   $ 122,232          
Share price (in dollars per share)         $ 9.49   $ 1.86
Restricted Stock              
Stockholders Equity [Line Items]              
Unvested shares of restricted common stock outstanding (in shares)       8,224   24,672  
Total unrecognized compensation expense       $ 28,071   $ 70,178  
Weighted average recognition period       8 months 1 day      
Unrecognized compensation costs       $ 28,000      
Restricted Stock | Andrew Kaplan Current Director              
Stockholders Equity [Line Items]              
Granted (in shares)   5,131          
Restricted Stock | Two former directors              
Stockholders Equity [Line Items]              
Granted (in shares)   25,000          
Restricted Stock | Chief Financial Officer              
Stockholders Equity [Line Items]              
Granted (in shares)     25,000        
Share price (in dollars per share)     $ 7.15        
Weighted average recognition period     36 months        
Total unrecognized compensation expense     $ 180,000        
Restricted stock vesting percentage 66.67%            
Amortization expense $ 108,000