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Quarterly Financial Information (unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract] |
Summary of Quarterly Results of Operations | The following is a summary of the quarterly results of operations for the years ended December 31, 2017 and 2016:
|  | For the Three Months Ended |
|  | December 31, 2017 |  |  | September 30, 2017 |  |  | June 30, 2017 |  |  | March 31, 2017 |
Revenues |  | $ | 12,807,175 |  |  | $ | 12,448,436 |  |  | $ | 13,013,143 |  |  | $ | 11,252,417 |
Gross Profit |  |  | 5,888,332 |  |  |  | 6,003,892 |  |  |  | 6,121,524 |  |  |  | 5,288,458 |
Total operating expenses |  |  | 5,418,089 |  |  |  | 5,803,260 |  |  |  | 6,248,678 |  |  |  | 4,862,979 |
Net income |  |  | 591,933 |  |  |  | 234,353 |  |  |  | (70,121 | ) |  |  | 385,090 |
Basic net income (loss) per share |  | $ | 0.06 |  |  | $ | 0.02 |  |  | $ | (0.01 | ) |  | $ | 0.04 |
Diluted net income (loss) per share |  | $ | 0.06 |  |  | $ | 0.02 |  |  | $ | (0.01 | ) |  | $ | 0.04 |
|  | For the Three Months Ended |
|  | December 31, 2016 |  |  | September 30, 2016 |  |  | June 30, 2016 |  |  | March 31, 2016 |
Revenues |  | $ | 12,625,966 |  |  | $ | 12,439,279 |  |  | $ | 9,856,317 |  |  | $ | 8,512,305 |
Gross Profit |  |  | 5,476,403 |  |  |  | 5,576,287 |  |  |  | 4,546,761 |  |  |  | 3,677,624 |
Total operating expenses |  |  | 4,345,198 |  |  |  | 4,345,965 |  |  |  | 3,572,915 |  |  |  | 3,560,830 |
Net income (loss) |  |  | 1,100,302 |  |  |  | 1,183,044 |  |  |  | 1,311,209 |  |  |  | 139,153 |
Basic net loss per share |  | $ | 0.14 |  |  | $ | 0.21 |  |  | $ | 0.97 |  |  | $ | (0.70 | )
Diluted net loss per share |  | $ | 0.12 |  |  | $ | 0.16 |  |  | $ | 0.15 |  |  | $ | (0.82 | )

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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