SECURITIES AVAILABLE FOR SALE - Summary of debt securities available for sale and unrealized loss position (Detail) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Debt Securities Available For Sale Unrealized Loss Position Fair Value [Line Items]
Fair Value, Less Than 12 Months	$ 154,687	$ 271,340
Unrealized Losses, Less Than 12 Months	(530)	(2,708)
Fair Value, 12 Months or More	1,117,518	2,005,441
Unrealized Losses, 12 Months or More	(2,492)	(4,186)
Fair Value, Total	1,272,205	2,276,781
Unrealized Losses, Total	(3,022)	(6,894)
Corporate Bonds
Debt Securities Available For Sale Unrealized Loss Position Fair Value [Line Items]
Fair Value, 12 Months or More	1,004,863	2,005,441
Unrealized Losses, 12 Months or More	(1,007)	(4,186)
Fair Value, Total	1,004,863	2,005,441
Unrealized Losses, Total	(1,007)	(4,186)
Residential Mortgage Backed Securities
Debt Securities Available For Sale Unrealized Loss Position Fair Value [Line Items]
Fair Value, Less Than 12 Months	154,687	271,340
Unrealized Losses, Less Than 12 Months	(530)	(2,708)
Fair Value, 12 Months or More	112,655
Unrealized Losses, 12 Months or More	(1,485)
Fair Value, Total	267,342	271,340
Unrealized Losses, Total	$ (2,015)	$ (2,708)

Debt securities, available-for-sale, unrealized loss position, fair value.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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