Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements (Narrative) (Details)

v3.21.1
Fair Value Measurements (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Contingent consideration at fair value   $ 550,000  
Transfers between levels   $ 0 $ 0
Subsequent Event [Member]      
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]      
Payment of contingent consideration $ 550,000