Investment and Mortgage-Backed Securities, Available for Sale (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of Available for Sale Securities

The amortized cost, gross unrealized gains, gross unrealized losses, and fair values of investment and mortgage-backed securities available for sale at the dates indicated are as follows:

	December 31, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair value
Student Loan Pools	$	41,088,231	$	—	$	856,401	$	40,231,830
Small Business Administration (“SBA”) Bonds	111,927,938		622,105		656,944		111,893,099
Tax Exempt Municipal Bonds	43,153,086		4,088,408		—		47,241,494
Taxable Municipal Bonds	15,169,737		35,359		364,686		14,840,410
Mortgage-Backed Securities	197,356,288		3,664,621		582,902		200,438,007
	$	408,695,280	$	8,410,493	$	2,460,933	$	414,644,840
	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair value
Student Loan Pools	$	12,934,037	$	20,713	$	69,249	$	12,885,501
SBA Bonds	125,777,016		560,352		890,837		125,446,531
Tax Exempt Municipal Bonds	60,141,164		1,518,974		329,769		61,330,369
Taxable Municipal Bonds	1,998,258		3,546		23,919		1,977,885
Mortgage-Backed Securities	185,291,038		1,073,432		1,903,919		184,460,551
	$	386,141,513	$	3,177,017	$	3,217,693	$	386,100,837

Schedule of Available For Sale Securities, Contractual Maturities

	Amortized Cost		Fair Value
Due in less than one year	$	18,237	$	18,134
Due in one year to five years	6,314,205		6,342,172
Due in five to ten years	57,236,558		57,209,659
Due in ten years or more	147,769,992		150,636,868
Mortgage-Backed Securities	197,356,288		200,438,007
	$	408,695,280	$	414,644,840

Schedule of Temporarily Impaired Securities, Fair Value and Unrealized Losses

The tables below summarize gross unrealized losses and the related fair value, aggregated by investment category and length of time that individual available for sale securities have been in a continuous unrealized loss position for the periods indicated.

	December 31, 2019
	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Student Loan Pools	$	30,079,497	$	534,048	$	10,152,333	$	322,353	$	40,231,830	$	856,401
SBA Bonds	13,844,666		106,110		47,395,036		550,834		61,239,702		656,944
Taxable Municipal Bonds	13,810,279		364,686		—		—		13,810,279		364,686
Mortgage-Backed Securities	55,326,064		480,958		7,975,863		101,944		63,301,927		582,902
	$	113,060,506	$	1,485,802	$	65,523,232	$	975,131	$	178,583,738	$	2,460,933

	December 31, 2018
	Less than 12 Months				12 Months or More				Total
	Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses
Student Loan Pools	$	8,384,145	$	69,249	$	—	$	—	$	8,384,145	$	69,249
SBA Bonds	59,496,936		479,955		25,054,861		410,882		84,551,797		890,837
Tax Exempt Municipal Bonds	4,585,849		91,281		9,626,613		238,488		14,212,462		329,769
Taxable Municipal Bonds	—		—		980,520		23,919		980,520		23,919
Mortgage-Backed Securities	38,168,598		249,050		81,947,249		1,654,869		120,115,847		1,903,919
	$	110,635,528	$	889,535	$	117,609,243	$	2,328,158	$	228,244,771	$	3,217,693