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Supplemental Information to Consolidated Statements of Cash Flows (Details)
3 Months Ended 5 Months Ended 12 Months Ended
Aug. 09, 2019
USD ($)
shares
Mar. 31, 2021
USD ($)
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2019
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Stock Issued During Period, Shares, New Issues | shares 585,300                
Stock Issued During Period, Value, New Issues $ 4,200,000         $ 4,214,000 [1]      
Payment, Tax Withholding, Share-based Payment Arrangement       $ 164,000 $ 174,000 $ 273,000      
Restricted Stock [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Restricted Stock Award, Forfeitures   $ 0.5     $ 433,000        
Number Of Executive Officers       2 2        
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures | shares   93,352     52,428        
Payment, Tax Withholding, Share-based Payment Arrangement       $ 163,573 $ 173,526        
Employees- Including an Executive Officer [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited | shares           14,391      
Employees- Including an Executive Officer [Member] | Maximum [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Restricted Stock Award, Forfeitures           $ 100,000      
Executive Officer [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Number Of Executive Officers   2     2       2
Executive Officer [Member] | Restricted Stock [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited | shares   32,846     16,886 19,098      
Restricted Stock Award, Forfeitures   $ 163,573     $ 173,526 $ 273,000      
Number Of Executive Officers             2 2  
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures | shares       32,846 16,886        
Common Stock [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Stock Issued During Period, Shares, New Issues | shares     585,300            
Stock Issued During Period, Value, New Issues     $ 4,200,000            
Series A Preferred Stock [Member]                  
Supplemental Information to Consolidated Statements of Cash Flows (Details) [Line Items]                  
Stock Issued During Period, Shares, New Issues | shares     200,000            
Preferred Stock, Par or Stated Value Per Share | $ / shares     $ 0.001     $ 0.001      
Financial and Nonfinancial Liabilities, Fair Value Disclosure     $ 4,900,000     $ 4,900,000      
[1] After giving effect to a 1 for 10 reverse stock split effective July 9, 2020.