| For the Years Ended December 31, | ||||||||||||
| 2023 | 2022 | 2021 | ||||||||||
| Current income tax expense | $ | 3,056,398 | $ | 2,078,737 | $ | 2,066,166 | ||||||
| Deferred income tax benefit | (1,115,546) | (609,512) | (705,555) | |||||||||
| $ | 1,940,852 | $ | 1,469,225 | $ | 1,360,611 | |||||||
| For the Years Ended December 31, | ||||||||||||
| 2023 | 2022 | 2021 | ||||||||||
| Cash flows from operating activities: | ||||||||||||
| Net income | $ | 9,750,046 | $ | 7,903,611 | $ | 8,695,784 | ||||||
| Adjustments to reconcile net income to net cash provided by (used in) operating activities: | ||||||||||||
| Depreciation expenses | 222,684 | 131,101 | 125,603 | |||||||||
| Write-down of inventories | 11,992 | 31,202 | — | |||||||||
| Deferred income tax benefits | (1,115,546) | (609,512) | (705,555) | |||||||||
| Amortization of right of use assets | 657,734 | 286,449 | — | |||||||||
| Changes in operating assets and liabilities: | ||||||||||||
| Accounts receivable | 6,351,817 | (10,936,029) | (5,155,799) | |||||||||
| Prepayment and other current assets | 198,359 | 4,122,329 | (6,424,991) | |||||||||
| Amount due from related parties | 1,595,999 | (1,406,704) | (134,935) | |||||||||
| Inventories | 1,110,993 | (8,945,410) | (4,019,788) | |||||||||
| Other non-current assets | (590,901) | (299,514) | (342,203) | |||||||||
| Accounts payable | 2,813,201 | (2,321,724) | 2,924,629 | |||||||||
| Advance from customers | 18,677 | (1,795,432) | 1,890,134 | |||||||||
| Income tax payable | 2,576,055 | 871,252 | 995,780 | |||||||||
| Lease liabilities | (712,327) | (139,002) | — | |||||||||
| Other payable and accrued expenses | 728,022 | 274,350 | 262,329 | |||||||||
| Amount due to related parties, current | (43,475) | (16,660) | (8,978) | |||||||||
| Net cash provided by (used in) operating activities | 23,573,330 | (12,849,693) | (1,897,990) | |||||||||
| Cash flows from investing activities: | ||||||||||||
| Purchase of property and equipment | (455,423) | (195,640) | (174,900) | |||||||||
| Loans to third parties | (1,219,129) | — | — | |||||||||
| Collection of loans from a third party | 720,247 | — | — | |||||||||
| Advances to related parties | (3,012,347) | (2,610,257) | (141,068) | |||||||||
| Collection of advances from related parties | 4,220,314 | 1,698,618 | 369,087 | |||||||||
| Net cash provided by (used in) investing activities | 253,662 | (1,107,279) | 53,119 | |||||||||
| Cash flows from financing activities: | ||||||||||||
| Proceeds from short-term borrowings | 58,240,717 | 85,538,493 | 34,534,300 | |||||||||
| Repayments of short-term borrowings | (70,827,958) | (73,220,207) | (34,292,971) | |||||||||
| Borrowings from related parties | 25,390,149 | 18,299,426 | 35,313,591 | |||||||||
| Repayment of short-term borrowings to related parties | (25,430,969) | (15,002,115) | (28,270,093) | |||||||||
| Payment of offering costs | (3,097,734) | (225,376) | (148,967) | |||||||||
| Payment to repurchase of Class B ordinary shares | (432,750) | — | — | |||||||||
| Payments of dividends to shareholders | (57,477) | (6,946,154) | (2,631,003) | |||||||||
| Capital contribution from shareholders | — | 1,500,000 | — | |||||||||
| Proceeds from issuance of convertible redeemable preferred shares | — | 3,000,000 | — | |||||||||
| Net cash (used in) provided by financing activities | (16,216,022) | 12,944,067 | 4,504,857 | |||||||||
| Effect of exchange rate changes on cash and cash equivalents | (56,194) | 66,305 | (248,242) | |||||||||
| Net increase (decrease) in cash and cash equivalents | 7,554,776 | (946,600) | 2,441,744 | |||||||||
| Cash and cash equivalents at beginning of year | 5,773,380 | 6,719,980 | 4,308,236 | |||||||||
| Cash and cash equivalents at end of year | $ | 13,328,156 | $ | 5,773,380 | $ | 6,719,980 | ||||||
| Supplemental cash flow information | ||||||||||||
| Cash paid for interest expense | $ | 848,129 | $ | 619,536 | $ | 787,767 | ||||||
| Cash paid for income tax | $ | 483,360 | $ | 1,207,485 | $ | 1,070,386 | ||||||
| Noncash financing activities | ||||||||||||
| Declared but unpaid dividends | $ | — | $ | 16,192,884 | $ | 7,059,271 | ||||||
| Operating lease right-of-use assets obtained in exchange for operating lease liabilities | $ | 2,416,154 | $ | 272,600 | $ | — | ||||||
| Accretion of convertible redeemable preferred shares | $ | 160,000 | $ | 135,781 | $ | — | ||||||
| Issuance of Class B ordinary shares to a financial advisor | $ | 6,160,000 | $ | — | $ | — | ||||||
| Redesignation of dividends payable as amount due to a related party | $ | — | $ | 6,755,952 | $ | — | ||||||
| Net settlement of due from related parties with due to related parties | $ | 1,335,008 | $ | — | $ | — | ||||||
