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Summarized Quarterly Financial Data (Unaudited) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Summarized Quarterly Financial Data (Unaudited) [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 31,376,309 | $ 37,462,066 | $ 37,991,892 | $ 27,914,333 | $ 35,108,810 | $ 32,406,877 | $ 41,283,142 | $ 26,504,344 | $ 134,744,600 | $ 135,303,173 | $ 137,041,447
Gross Profit | 7,545,402 | 7,330,843 | 6,889,754 | 3,765,884 | 5,973,797 | 6,416,561 | 10,483,514 | 4,986,733 | 25,531,883 | 27,860,605 | 22,778,148
Income (Loss) from Operations | 4,632,419 | 4,731,145 | 4,168,522 | (580,367) | 3,665,106 | 2,601,779 | 8,649,545 | 3,280,340 | 12,951,719 | 18,196,770 | 17,412,906
Net income (loss) | $ 3,070,724 | $ 3,034,542 | $ 2,581,606 | $ (1,373,896) | $ 2,160,289 | $ 1,685,897 | $ 5,590,530 | $ 2,105,489 | $ 7,312,976 | $ 11,542,205 | $ 11,706,360
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |
Basic | $ 0.14 | $ 0.14 | $ 0.12 | $ (0.06) | $ 0.11 | $ 0.08 | $ 0.28 | $ 0.1 | $ 0.34 | $ 0.57 | $ 0.61
Diluted | $ 0.14 | $ 0.14 | $ 0.12 | $ (0.06) | $ 0.11 | $ 0.08 | $ 0.28 | $ 0.1 | $ 0.34 | $ 0.57 | $ 0.61

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