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v3.20.1

CONSOLIDATED STATEMENTS OF EQUITY - USD ($) | Ordinary shares | Additional Paid-In Capital | Retained earnings Statutory reserve | Retained Earnings Unrestricted | Accumulated Other Comprehensive Income | Total
--- | --- | --- | --- | --- | --- | ---
Balances at beginning at Dec. 31, 2016 | $ 33,000 | $ 4,059,614 | $ 382,870 | $ 2,920,754 | $ (441,470) | $ 6,954,768
Balances at beginning (in shares) at Dec. 31, 2016 | 33,000,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Capital injection |  | 8,772,355 |  |  |  | 8,772,355
Underwriter's partial exercise of over-allotment option, net of issuance costs |  |  |  |  |  |
Net income |  |  |  | 5,124,973 |  | 5,124,973
Statutory reserves |  |  | 530,869 | (530,869) |  |
Foreign currency translation |  |  |  |  | 958,667 | 958,667
Balances at ending at Dec. 31, 2017 | $ 33,000 | 12,831,969 | 913,739 | 7,514,858 | 517,197 | 21,810,763
Balances at ending (in shares) at Dec. 31, 2017 | 33,000,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Capital injection |  |  |  |  |  |
Underwriter's partial exercise of over-allotment option, net of issuance costs |  |  |  |  |  |
Net income |  |  |  | 7,919,408 |  | 7,919,408
Statutory reserves |  |  | 264,693 | (264,693) |  |
Foreign currency translation |  |  |  |  | (1,474,126) | (1,474,126)
Balances at ending at Dec. 31, 2018 | $ 33,000 | 12,831,969 | 1,178,432 | 15,169,573 | (956,929) | 28,256,045
Balances at ending (in shares) at Dec. 31, 2018 | 33,000,000 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Capital injection |  |  |  |  |  |
Issuance of ordinary shares upon initial public offering, net of issuance costs | $ 2,000 | 7,415,077 |  |  |  | 7,417,077
Issuance of ordinary shares upon initial public offering, net of issuance costs (in shares) | 2,000,000 |  |  |  |  |
Underwriter's partial exercise of over-allotment option, net of issuance costs | $ 141 | 524,803 |  |  |  | 524,944
Underwriter's partial exercise of over-allotment option, net of issuance costs (in shares) | 141,114 |  |  |  |  |
Net income |  |  |  | 9,073,954 |  | 9,073,954
Statutory reserves |  |  | 111,333 | (111,333) |  |
Foreign currency translation |  |  |  |  | (521,738) | (521,738)
Balances at ending at Dec. 31, 2019 | $ 35,141 | $ 20,771,849 | $ 1,289,765 | $ 24,132,194 | $ (1,478,667) | $ 44,750,282
Balances at ending (in shares) at Dec. 31, 2019 | 35,141,114 |  |  |  |  |

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