CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($)	Common Stock [Member]	AOCI Attributable to Parent [Member]	Unearned Compensation [Member]	Retained Earnings [Member]	Total
BALANCE at Dec. 31, 2019	$ 8,648,697	$ (186,095)	$ 189,255	$ 72,106,198	$ 80,758,055
BALANCE (in Shares) at Dec. 31, 2019	5,189,218
Director's Stock Plan	$ 20,440			179,464	199,904
Director's Stock Plan (in Shares)	12,264
Employee Stock Plan	$ 11,618			92,947	104,565
Employee Stock Plan (in Shares)	6,971
Restricted Stock Grant			37,801		37,801
Exercise of RSU's	$ 6,907		(126,616)	71,829	(47,880)
Exercise of RSU's (in Shares)	4,144
Repurchase of Common Stock	$ (22,493)			(216,119)	(238,612)
Repurchase of Common Stock (in Shares)	(13,496)
Net Income				4,964,885	4,964,885
Dividends				(674,171)	(674,171)
Unrealized Gain (Loss) on Interest Rate Swap		(2,087,466)			(2,087,466)
BALANCE at Jun. 30, 2020	$ 8,665,169	(2,273,561)	100,440	76,525,033	83,017,081
BALANCE (in Shares) at Jun. 30, 2020	5,199,101
BALANCE at Mar. 31, 2020	$ 8,633,111	(2,163,271)	57,465	73,908,545	80,435,850
BALANCE (in Shares) at Mar. 31, 2020	5,179,866
Director's Stock Plan	$ 20,440			179,464	199,904
Director's Stock Plan (in Shares)	12,264
Employee Stock Plan	$ 11,618			92,947	104,565
Employee Stock Plan (in Shares)	6,971
Restricted Stock Grant			42,975		42,975
Net Income				2,344,077	2,344,077
Unrealized Gain (Loss) on Interest Rate Swap		(110,290)			(110,290)
BALANCE at Jun. 30, 2020	$ 8,665,169	(2,273,561)	100,440	76,525,033	83,017,081
BALANCE (in Shares) at Jun. 30, 2020	5,199,101
BALANCE at Dec. 31, 2020	$ 8,667,816	(1,944,511)	149,100	80,748,301	87,620,706
BALANCE (in Shares) at Dec. 31, 2020	5,200,689
Director's Stock Plan	$ 14,000			185,920	199,920
Director's Stock Plan (in Shares)	8,400
Employee Stock Plan	$ 7,657			101,083	108,740
Employee Stock Plan (in Shares)	4,594
Restricted Stock Grant			119,944		119,944
Exercise of RSU's	$ 3,060		(43,458)	40,398
Exercise of RSU's (in Shares)	1,836
Repurchase of Common Stock	$ (5,047)			(67,020)	(72,067)
Repurchase of Common Stock (in Shares)	(3,028)
Net Income				7,623,624	7,623,624
Dividends				(1,405,839)	(1,405,839)
Unrealized Gain (Loss) on Interest Rate Swap		709,163			709,163
BALANCE at Jun. 30, 2021	$ 8,687,486	(1,235,348)	225,586	87,226,467	94,904,191
BALANCE (in Shares) at Jun. 30, 2021	5,212,491
BALANCE at Mar. 31, 2021	$ 8,678,533	(1,269,170)	174,983	85,394,403	92,978,749
BALANCE (in Shares) at Mar. 31, 2021	5,207,119
Director's Stock Plan	$ 14,000			185,920	199,920
Director's Stock Plan (in Shares)	8,400
Restricted Stock Grant			50,603		50,603
Repurchase of Common Stock	$ (5,047)			(67,020)	(72,067)
Repurchase of Common Stock (in Shares)	(3,028)
Net Income				2,442,913	2,442,913
Dividends				(729,749)	(729,749)
Unrealized Gain (Loss) on Interest Rate Swap		33,822			33,822
BALANCE at Jun. 30, 2021	$ 8,687,486	$ (1,235,348)	$ 225,586	$ 87,226,467	$ 94,904,191
BALANCE (in Shares) at Jun. 30, 2021	5,212,491