The amount of aggregate fair value of bond held at balance sheet date.

No definition available.

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- Definition

The amount of amortized cost of bond held at balance sheet date.

+ References

No definition available.

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- References

No definition available.

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- Definition

Percentage of different kind of bond included in investment in special revenue bonds.

+ References

No definition available.

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- Definition

The amount of reclassification adjustment out of accumulated other comprehensive income amortization of unrecognized loss during the reporting period.

+ References

No definition available.

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- Definition

Percentage of threshold limit for investment held at balance sheet date.

+ References

No definition available.

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- Definition

Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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- Definition

Amount, before tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Investments, Summary (Details) - USD ($)		3 Months Ended		12 Months Ended
Investments, Summary (Details) - USD ($)	Nov. 30, 2013	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Investments [Abstract]
Net unrealized losses arising prior to reclassification date	$ 15,100,000
Amortization of other comprehensive loss		$ 149,475	$ 371,265
Accumulated other comprehensive (loss) income		$ (17,306,674)		$ 3,283,551
Minimum [Member]
Investments [Abstract]
Percentage of which the company held security of any issuer		10.00%		10.00%
Obligations of States and Political Subdivisions [Member]
Investments [Abstract]
Aggregate fair value of bond held		$ 283,600,000		$ 284,900,000
Amortized cost of bond held		296,100,000		272,700,000
Special Revenue Bonds [Member]
Investments [Abstract]
Aggregate fair value of bond held		152,900,000		160,800,000
Amortized cost of bond held		$ 157,500,000		$ 154,200,000
Education Bonds [Member]
Investments [Abstract]
Percentage of investments in special revenue bonds		48.00%		48.00%
Water and Sewer Utility Bonds [Member]
Investments [Abstract]
Percentage of investments in special revenue bonds		35.00%		35.00%
Accumulated Net Unrealized Investment Losses [Member]
Investments [Abstract]
Accumulated other comprehensive (loss) income		$ (5,000,000.0)		$ (5,200,000)