XML 53 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Stockholders' Equity (Details)
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
$ / shares
shares
Jun. 30, 2020
USD ($)
Dec. 31, 2018
item
shares
Apr. 27, 2021
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Class of Stock [Line Items]                
Maximum number of shares which the Company is authorized to issue             300,000,000  
Preferred stock, par value | $ / shares   $ 0.0001   $ 0.0001     $ 0.0001 $ 0.0001
Common stock, par value | $ / shares   $ 0.0001   $ 0.0001       $ 0.0001
Accumulated restricted common stock issued   4,636,216   4,636,216       4,636,216
Accumulated restricted common stock vested   4,598,357   4,598,357       4,489,738
Restricted shares issued in exchange for subscriptions receivable           292,250    
Number of purchasers for restricted shares in exchange for subscriptions receivable | item           2    
Interest rate for subscriptions receivable           4.00%    
Principal balance of subscriptions receivable | $   $ 8,400   $ 8,400       $ 11,690
Accrued interest of subscriptions receivable | $   $ 954   $ 954       $ 1,073
Preferred stock, shares issued   0   0       0
Common shares reserved for issuance   1,080,858   1,080,858       1,050,694
Repayment of subscription receivable | $ $ 3,290              
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]                
Cash dividends were declared or paid | $   $ 0 $ 0 $ 0 $ 0      
Common stock voting rights per share | $ / shares       $ 1        
Restricted Stock                
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]                
Unvested restricted common stock, beginning balance       146,483        
Shares vested       (108,624)        
Unvested restricted common stock, ending balance   37,859   37,859        
Common Stock                
Class of Stock [Line Items]                
Maximum number of shares which the Company is authorized to issue             290,000,000  
Preferred Stock                
Class of Stock [Line Items]                
Maximum number of shares which the Company is authorized to issue             10,000,000