Consolidated Statements of Comprehensive Income (Loss) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net loss	$ (5,038)	$ (473,400)	$ (474,196)	$ (1,619,045)
Unrealized gain (loss) on available-for-sale bond securities:
Unrealized holding gain (loss) during the period, net of income tax (expense) benefit of $(111,475) and $33,962 for three months ended September 30, 2019 and 2018 and $(732,859) and $418,862 for nine months ended September 30, 2019 and 2018, respectively	429,346	(111,068)	2,738,677	(1,563,056)
Reclassification adjustments for (gains) losses included in net loss, net of income tax (expense) benefit of $(2,653) and $(4,437) for three months ended September 30, 2019 and 2018 and $4,856 and $(3,516) for nine months ended September 30, 2019 and 2018, respectively	(9,984)	(16,691)	18,264	(13,226)
Other comprehensive income (loss)	419,362	(127,759)	2,756,941	(1,576,282)
Comprehensive income (loss)	$ 414,324	$ (601,159)	$ 2,282,745	$ (3,195,327)