| Summary of Disaggregation of Revenue by Major Source and Geographic Location | 
The following table disaggregates our revenue by major source for the three and six months ended June 30, 2018 and 2017: 
  
| 
   
 | 
   
 | 
 Three Months Ended June 30, 
 | 
   
 | 
   
 | 
 Six Months Ended June 30, 
 | 
   
 | 
 
| 
   
 | 
   
 | 
 2018 
 | 
   
 | 
   
 | 
 2017 
 | 
   
 | 
   
 | 
 2018 
 | 
   
 | 
   
 | 
 2017 
 | 
   
 | 
 
| 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
 
| 
 Table games 
 | 
   
 | 
 $ 
 | 
 4,413,878 
 | 
   
 | 
   
 | 
 $ 
 | 
 3,522,221 
 | 
   
 | 
   
 | 
 $ 
 | 
 8,607,035 
 | 
   
 | 
   
 | 
 $ 
 | 
 6,875,153 
 | 
   
 | 
 
| 
 E-tables 
 | 
   
 | 
   
 | 
 113,837 
 | 
   
 | 
   
 | 
   
 | 
 121,452 
 | 
   
 | 
   
 | 
   
 | 
 272,665 
 | 
   
 | 
   
 | 
   
 | 
 234,981 
 | 
   
 | 
 
| 
 Other 
 | 
   
 | 
   
 | 
 8,458 
 | 
   
 | 
   
 | 
   
 | 
 15,135 
 | 
   
 | 
   
 | 
   
 | 
 17,167 
 | 
   
 | 
   
 | 
   
 | 
 23,970 
 | 
   
 | 
 
| 
 Total revenue 
 | 
   
 | 
 $ 
 | 
 4,536,173 
 | 
   
 | 
   
 | 
 $ 
 | 
 3,658,808 
 | 
   
 | 
   
 | 
 $ 
 | 
 8,896,867 
 | 
   
 | 
   
 | 
 $ 
 | 
 7,134,104 
 | 
   
 | 
 
 
 
  
The following table disaggregates our revenue by geographic location for the three and six months ended June 30, 2018 and 2017: 
  
| 
   
 | 
   
 | 
 Three Months Ended June 30, 
 | 
   
 | 
   
 | 
 Six Months Ended June 30, 
 | 
   
 | 
 
| 
   
 | 
   
 | 
 2018 
 | 
   
 | 
   
 | 
 2017 
 | 
   
 | 
   
 | 
 2018 
 | 
   
 | 
   
 | 
 2017 
 | 
   
 | 
 
| 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
   
 | 
 
| 
 North America and Caribbean 
 | 
   
 | 
 $ 
 | 
 3,494,692 
 | 
   
 | 
   
 | 
 $ 
 | 
 3,034,662 
 | 
   
 | 
   
 | 
 $ 
 | 
 6,945,401 
 | 
   
 | 
   
 | 
 $ 
 | 
 5,871,552 
 | 
   
 | 
 
| 
 Europe 
 | 
   
 | 
   
 | 
 1,041,481 
 | 
   
 | 
   
 | 
   
 | 
 624,146 
 | 
   
 | 
   
 | 
   
 | 
 1,951,466 
 | 
   
 | 
   
 | 
   
 | 
 1,262,552 
 | 
   
 | 
 
| 
 Total revenue 
 | 
   
 | 
 $ 
 | 
 4,536,173 
 | 
   
 | 
   
 | 
 $ 
 | 
 3,658,808 
 | 
   
 | 
   
 | 
 $ 
 | 
 8,896,867 
 | 
   
 | 
   
 | 
 $ 
 | 
 7,134,104 
 | 
   
 | 
 
 
 
  
 
 | 
| Summary of Changes in Revenue Contract Liability | 
The table below summarizes changes in the revenue contract liability during the six months ended June 30, 2018: 
  
| 
   
 | 
   
 | 
 Revenue Contract liability 
 | 
   
 | 
 
| 
 Beginning balance – January 1, 2018 
 | 
   
 | 
 $ 
 | 
 1,083,639 
 | 
   
 | 
 
| 
 Increase (advanced billings) 
 | 
   
 | 
   
 | 
 6,730,824 
 | 
   
 | 
 
| 
 Decrease (revenue recognition) 
 | 
   
 | 
   
 | 
 (6,627,156 
 | 
 ) 
 | 
 
| 
 Ending balance – June 30. 2018 
 | 
   
 | 
 $ 
 | 
 1,187,307 
 | 
   
 | 
 
 
 
  
 
 | 
| Summary of Adoption of ASC 606 had Impact on Statement of Operations | 
For the three months ended June 30, 2018, the adoption of ASC 606 had the following impact on our statement of operations: 
  
| 
   
 | 
   
 | 
 Three Months Ended June 30, 2018 
 | 
   
 | 
 
| 
   
 | 
   
 | 
 As reported 
 | 
   
 | 
   
 | 
 Balance without the adoption of ASC 606 
 | 
   
 | 
   
 | 
 Impact of the adoption 
 | 
   
 | 
 
| 
 Product leases and royalties 
 | 
   
 | 
 $ 
 | 
 4,536,350 
 | 
   
 | 
   
 | 
 $ 
 | 
 4,270,278 
 | 
   
 | 
   
 | 
 $ 
 | 
 266,072 
 | 
   
 | 
 
| 
 Selling, general and administrative expense 
 | 
   
 | 
 $ 
 | 
 2,597,089 
 | 
   
 | 
   
 | 
 $ 
 | 
 2,331,017 
 | 
   
 | 
   
 | 
 $ 
 | 
 266,072 
 | 
   
 | 
 
 
 
For the six months ended June 30, 2018, the adoption of ASC 606 had the following impact on our statement of operations: 
  
| 
   
 | 
   
 | 
 Six Months Ended June 30, 2018 
 | 
   
 | 
 
| 
   
 | 
   
 | 
 As reported 
 | 
   
 | 
   
 | 
 Balance without the adoption of ASC 606 
 | 
   
 | 
   
 | 
 Impact of the adoption 
 | 
   
 | 
 
| 
 Product leases and royalties 
 | 
   
 | 
 $ 
 | 
 8,896,705 
 | 
   
 | 
   
 | 
 $ 
 | 
 8,423,936 
 | 
   
 | 
   
 | 
 $ 
 | 
 472,769 
 | 
   
 | 
 
| 
 Selling, general and administrative expense 
 | 
   
 | 
 $ 
 | 
 5,182,159 
 | 
   
 | 
   
 | 
 $ 
 | 
 4,709,390 
 | 
   
 | 
   
 | 
 $ 
 | 
 472,769 
 | 
   
 | 
 
 
 
  
 
 |