Annual report pursuant to Section 13 and 15(d)

Stock-based Plans and Stock-based Compensation (Stock Based Compensation Expense - Stock Options) (Details)

v3.21.1
Stock-based Plans and Stock-based Compensation (Stock Based Compensation Expense - Stock Options) (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 260,003 $ 263,378
Employee Stock Option [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense 513,935 899,892
Employee Stock Option [Member] | General And Administrative [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense 267,306 670,188
Employee Stock Option [Member] | Sales And Marketing [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense 75,235 74,229
Employee Stock Option [Member] | Engineering, Research And Development [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Stock-based compensation expense $ 171,394 $ 155,475