Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock	Common Stock	Capital in Excess of Par	Accumulated Other Comprehensive Income (Loss)	Retained Earnings	Treasury Stock	Total
Beginning Balance, Shares at Dec. 31, 2018	0	11,775,148				1,027,439
Beginning Balance, Amount at Dec. 31, 2018	$ 0	$ 117,751	$ 67,763,940	$ (2,884,313)	$ 26,380,816	$ (2,712,552)	$ 88,665,642
Stock-based compensation			309,882				309,882
Vesting of restricted stock awards, Shares		27,593
Vesting of restricted stock awards, Amount		$ 275	(275)
Shares deducted from restricted stock awards for payment of withholding taxes, Shares		(6,553)
Shares deducted from restricted stock awards for payment of withholding taxes, Amount		$ (64)	(115,943)				(116,007)
Dividends					(1,075,962)		(1,075,962)
Net income/(loss)					(7,335,190)		(7,335,190)
Change in unrealized gains/(losses) on available-for-sale securities, net of tax				3,326,806			3,326,806
Ending Balance, Shares at Mar. 31, 2019	0	11,796,188				1,027,439
Ending Balance, Amount at Mar. 31, 2019	$ 0	$ 117,962	67,957,604	442,493	17,969,664	$ (2,712,552)	83,775,171
Beginning Balance, Shares at Dec. 31, 2019	0	11,824,889				1,027,439
Beginning Balance, Amount at Dec. 31, 2019	$ 0	$ 118,248	69,133,918	4,768,870	16,913,097	$ (2,712,552)	88,221,581
Stock-based compensation			487,450				487,450
Vesting of restricted stock awards, Shares		38,866
Vesting of restricted stock awards, Amount		$ 387	(387)
Shares deducted from restricted stock awards for payment of withholding taxes, Shares		(12,489)
Shares deducted from restricted stock awards for payment of withholding taxes, Amount		$ (123)	(87,831)				(87,954)
Acquisition of treasury stock, Shares						42,434
Acquisition of treasury stock, Amount						$ (242,724)	(242,724)
Dividends					(675,960)		(675,960)
Net income/(loss)					(5,444,203)		(5,444,203)
Change in unrealized gains/(losses) on available-for-sale securities, net of tax				(5,395,471)			(5,395,471)
Ending Balance, Shares at Mar. 31, 2020	0	11,851,266				1,069,873
Ending Balance, Amount at Mar. 31, 2020	$ 0	$ 118,512	$ 69,533,150	$ (626,601)	$ 10,792,934	$ (2,955,276)	$ 76,862,719