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6. Deferred Production Costs (Tables)
9 Months Ended
Sep. 30, 2019
Deferred Production Costs  
Schedule of Deferred Production Costs
   September 30,   December 31, 
   2019   2018 
         
Deferred production costs  $27,975,552    23,604,111 
Less: accumulated amortization   (16,770,709)   (14,545,267)
Deferred production costs, net  $11,204,843   $9,058,844 
           
Weighted average remaining amortization period at September 30, 2019 (in years)   3.80