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Selected Quarterly Financial Data (Tables)
12 Months Ended
Dec. 31, 2017
Selected Quarterly Financial Data Tables  
Selected quarterly unaudited financial data

 

Summarized unaudited quarterly financial data for each of the calendar years 2017 and 2016 is as follows:

   Comparable Period by Quarter Ended
   March 31  June 30  September 30  December 31
Calendar Year 2017            
Total revenues  $8,960,497   $9,241,306   $9,293,389   $9,296,290 
Loss before taxes  $(3,267,349)  $(1,350,826)  $(4,435,225)  $(826,821)
Net loss  $(2,147,252)  $(890,735)  $(2,927,249)  $(2,759,748)
Loss per share:  Basic  $(0.40)  $(0.17)  $(0.55)  $(0.52)
Loss per share:  Diluted  $(0.40)  $(0.17)  $(0.55)  $(0.52)
                     
Calendar Year 2016                    
Total revenues  $8,529,678   $8,722,632   $8,998,342   $9,017,072 
Income (loss) before taxes  $(270,026)  $208,594   $(2,966,721)  $913,915 
Net income (loss)  $(198,987)  $151,030   $(1,953,497)  $597,177 
Earnings (loss) per share:  Basic  $(0.04)  $0.03   $(0.37)  $0.11 
Earnings (loss) per share:  Diluted  $(0.04)  $0.03   $(0.37)  $0.11