FAIR VALUE MEASUREMENTS - Cash and Cash Equivalents and Marketable Securities Measured at Fair Value on Recurring Basis (Details) - Recurring [Member] - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| FAIR VALUE MEASUREMENTS [Abstract] | ||
| Cash and cash equivalents | $ 6,248,223 | $ 6,674,473 |
| Held-to-maturity securities | 12,615,881 | 11,225,475 |
| Fair value | 18,864,104 | 17,899,948 |
| Level 1 [Member] | ||
| FAIR VALUE MEASUREMENTS [Abstract] | ||
| Cash and cash equivalents | 6,248,223 | 6,674,473 |
| Held-to-maturity securities | 12,615,881 | 11,225,475 |
| Fair value | 18,864,104 | 17,899,948 |
| Level 2 [Member] | ||
| FAIR VALUE MEASUREMENTS [Abstract] | ||
| Cash and cash equivalents | 0 | 0 |
| Held-to-maturity securities | 0 | 0 |
| Fair value | 0 | 0 |
| Level 3 [Member] | ||
| FAIR VALUE MEASUREMENTS [Abstract] | ||
| Cash and cash equivalents | 0 | 0 |
| Held-to-maturity securities | 0 | 0 |
| Fair value | $ 0 | $ 0 |
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- Definition Fair value portion of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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