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v3.20.2

Consolidated Statements of Equity - USD ($) | Total | Cumulative Effect, Period of Adoption, Adjustment | Common stock | Retained earnings | Retained earnings Cumulative Effect, Period of Adoption, Adjustment | Noncontrolling interest
--- | --- | --- | --- | --- | --- | ---
Equity, balance at Dec. 31, 2016 | $ 73,120,819 | $ 1,082,924 | $ 54,643,268 | $ 18,604,931 | $ 1,082,924 | $ (127,380)
Equity, common shares outstanding at Dec. 31, 2016 |  |  | 16,074,176 |  |  |
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) attributable to common shareholders | (7,978,633) |  |  | (7,978,633) |  |
Net loss at subsidiary attributable to noncontrolling interests | (71,182) |  |  |  |  | (71,182)
Net income (loss) | (8,049,815) |  |  |  |  |
Repurchase of subsidiary shares to noncontrolling interest | 0 |  |  |  |  |
Share-based compensation, amount | 1,115,063 |  | $ 1,115,063 |  |  |
Share-based compensation, shares |  |  | 146,275 |  |  |
Exercise of options and related tax benefit | 372,500 |  | $ 372,500 |  |  |
Exercise of options and related tax benefit, shares |  |  | 50,000 |  |  |
Repurchase of common shares | (3,719,890) |  | $ (3,719,890) |  |  |
Repurchase of common shares, shares |  |  | (547,376) |  |  |
Equity, balance at Dec. 31, 2017 | 63,921,601 |  | $ 52,410,941 | 11,709,222 |  | (198,562)
Equity, common shares outstanding at Dec. 31, 2017 |  |  | 15,723,075 |  |  |
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) attributable to common shareholders | (6,963,068) |  |  | (6,963,068) |  |
Net loss at subsidiary attributable to noncontrolling interests | (75,704) |  |  |  |  | (75,704)
Net income (loss) | (7,038,772) |  |  |  |  |
Repurchase of subsidiary shares to noncontrolling interest | 0 |  |  |  |  |
Share-based compensation, amount | 1,364,698 |  | $ 1,364,698 |  |  |
Share-based compensation, shares |  |  | 170,759 |  |  |
Proceeds from sale of common stock, net of offering costs | 200,909 |  | $ 200,909 |  |  |
Proceeds from the sale of common stock, net of offering costs, shares |  |  | 30,704 |  |  |
Repurchase of common shares | (2,877,935) |  | $ (2,877,935) |  |  |
Repurchase of common shares, shares |  |  | (443,041) |  |  |
Equity, balance at Dec. 31, 2018 | $ 55,570,501 |  | $ 51,098,613 | 4,746,154 |  | (274,266)
Equity, common shares outstanding at Dec. 31, 2018 | 15,481,497 |  | 15,481,497 |  |  |
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |
Net income (loss) attributable to common shareholders | $ (3,537,759) |  |  | (3,537,759) |  |
Net loss at subsidiary attributable to noncontrolling interests | (8,752) |  |  |  |  | (8,752)
Net income (loss) | (3,546,511) |  |  |  |  |
Repurchase of subsidiary shares to noncontrolling interest | (800,000) |  | $ (685,805) |  |  | (114,195)
Sale of subsidiary shares to noncontrolling interest | 1,000,000 |  | 640,407 |  |  | 359,593
Vesting of common stock | 862,200 |  | $ 862,200 |  |  |
Vesting of common stock, shares |  |  | 180,000 |  |  |
Share-based compensation, amount | 1,485,898 |  | $ 1,485,898 |  |  |
Share-based compensation, shares |  |  | 225,536 |  |  |
Repurchase of common shares | (3,486,835) |  | $ (3,486,835) |  |  |
Repurchase of common shares, shares |  |  | (623,478) |  |  |
Equity, balance at Dec. 31, 2019 | $ 51,085,253 |  | $ 49,914,478 | $ 1,208,395 |  | $ (37,620)
Equity, common shares outstanding at Dec. 31, 2019 | 15,263,555 |  | 15,263,555 |  |  |

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