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Selected Quarterly Financial Data (Tables)
12 Months Ended
Dec. 31, 2019
Selected Quarterly Financial Data  
Selected quarterly unaudited financial data

 

Summarized unaudited quarterly financial data for each of the calendar years 2019 and 2018 is as follows:

   Comparable Period by Quarter Ended
   March 31  June 30  September 30  December 31
Calendar Year 2019            
Total revenues  $7,135,474   $7,795,098   $8,258,966   $8,183,276 
Income (loss) before taxes  $(811,732)  $(342,670)  $330,726   $(2,426,214)
Net income (loss)  $(671,074)  $(276,677)  $212,467   $(2,380,419)
Income (loss) per share: Basic  $(0.13)  $(0.05)  $0.04   $(0.45)
Income (loss) per share: Diluted  $(0.13)  $(0.05)  $0.04   $(0.45)
                     
Calendar Year 2018                    
Total revenues  $8,806,891   $8,643,452   $8,161,034   $8,001,419 
Income (loss) before taxes  $(2,811,931)  $287,032   $(812,141)  $(589,752)
Net income (loss)  $(2,207,251)  $168,297   $(661,925)  $(468,680)
Income (loss) per share: Basic  $(0.42)  $0.03   $(0.12)  $(0.09)
Income (loss) per share: Diluted  $(0.42)  $0.03   $(0.12)  $(0.09)