Condensed Consolidated Statements of Shareholders’ Equity (Unaudited) - USD ($)	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Loss	Retained Earnings	Total
Balance at Dec. 31, 2019	$ 94,428	$ 10,503,171	$ (294,491)	$ 20,431,156	$ 30,734,264
Balance (in Shares) at Dec. 31, 2019	9,442,809
Net income				8,736,032	8,736,032
Dividends, common stock				(567,726)	(567,726)
Options exercised	$ 153	20,547			20,700
Options exercised (in Shares)	15,296
Stock based compensation	$ 40	22,180			22,220
Stock based compensation (in Shares)	4,000
Foreign currency translation adjustment			(1,663)		(1,663)
Balance at Sep. 30, 2020	$ 94,621	10,545,898	(296,154)	28,599,462	38,943,827
Balance (in Shares) at Sep. 30, 2020	9,462,105
Balance at Jun. 30, 2020	$ 94,621	10,545,898	(295,873)	24,131,874	34,476,520
Balance (in Shares) at Jun. 30, 2020	9,462,105
Net income				4,656,830	4,656,830
Dividends, common stock				(189,242)	(189,242)
Foreign currency translation adjustment			(281)		(281)
Balance at Sep. 30, 2020	$ 94,621	10,545,898	(296,154)	28,599,462	38,943,827
Balance (in Shares) at Sep. 30, 2020	9,462,105
Balance at Dec. 31, 2020	$ 94,818	10,816,100	(294,324)	29,290,477	39,907,071
Balance (in Shares) at Dec. 31, 2020	9,481,799
Net income				7,776,445	7,776,445
Dividends, common stock				(853,482)	(853,482)
Stock based compensation	$ 40	55,740			55,780
Stock based compensation (in Shares)	4,000
Foreign currency translation adjustment			(673)		(673)
Balance at Sep. 30, 2021	$ 94,858	10,871,840	(294,997)	36,213,440	46,885,141
Balance (in Shares) at Sep. 30, 2021	9,485,799
Balance at Jun. 30, 2021	$ 94,858	10,871,840	(293,843)	33,227,153	43,900,008
Balance (in Shares) at Jun. 30, 2021	9,485,799
Net income				3,270,861	3,270,861
Dividends, common stock				(284,574)	(284,574)
Foreign currency translation adjustment			(1,154)		(1,154)
Balance at Sep. 30, 2021	$ 94,858	$ 10,871,840	$ (294,997)	$ 36,213,440	$ 46,885,141
Balance (in Shares) at Sep. 30, 2021	9,485,799