Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total
Beginning balance, value at Mar. 31, 2021	$ 1,071,833	$ 7,624,214	$ 473,361	$ (346,001)	$ 8,823,407
Net income			395,006		395,006
Stock based compensation		13,865			13,865
Issuance of stock through options exercised	2,500	31,500			34,000
Ending balance, value at Jun. 30, 2021	1,074,333	7,669,579	868,367	(346,001)	9,266,278
Beginning balance, value at Mar. 31, 2021	1,071,833	7,624,214	473,361	(346,001)	8,823,407
Net income					1,857,136
Ending balance, value at Dec. 31, 2021	1,094,333	7,959,357	2,330,497	(346,001)	11,038,186
Beginning balance, value at Jun. 30, 2021	1,074,333	7,669,579	868,367	(346,001)	9,266,278
Net income			708,828		708,828
Stock based compensation		22,568			22,568
Issuance of stock through options exercised	11,450	140,282			151,732
Ending balance, value at Sep. 30, 2021	1,085,783	7,832,429	1,577,195	(346,001)	10,149,406
Net income			753,302		753,302
Stock based compensation		25,570			25,570
Issuance of stock through options exercised	8,550	101,358			109,908
Ending balance, value at Dec. 31, 2021	1,094,333	7,959,357	2,330,497	(346,001)	11,038,186
Beginning balance, value at Mar. 31, 2022	1,108,208	8,133,982	3,328,427	(346,001)	$ 12,224,616
Beginning balance, shares at Mar. 31, 2022					2,216,416
Beginning balance, held in treasury, shares at Mar. 31, 2022					(67,000)
Net income			1,298,672		$ 1,298,672
Stock based compensation		25,571			25,571
Ending balance, value at Jun. 30, 2022	1,108,208	8,159,553	4,627,099	(346,001)	13,548,859
Beginning balance, value at Mar. 31, 2022	1,108,208	8,133,982	3,328,427	(346,001)	$ 12,224,616
Beginning balance, shares at Mar. 31, 2022					2,216,416
Beginning balance, held in treasury, shares at Mar. 31, 2022					(67,000)
Net income					$ 3,755,173
Common stock shares, issued					5,000
Common stock shares, held in treasury, Acquisitions, shares					(12,416)
Ending balance, value at Dec. 31, 2022	1,110,708	8,279,823	7,083,600	(514,261)	$ 15,959,870
Ending balance, shares at Dec. 31, 2022					2,221,416
Ending balance, held in treasury, shares at Dec. 31, 2022					(79,416)
Common stock shares, outstanding at Dec. 31, 2022					2,142,000
Beginning balance, value at Jun. 30, 2022	1,108,208	8,159,553	4,627,099	(346,001)	$ 13,548,859
Net income			1,211,716		1,211,716
Stock based compensation		34,431			34,431
Profit from purchase of stock by insider		30,179			30,179
Ending balance, value at Sep. 30, 2022	1,108,208	8,224,163	5,838,815	(346,001)	14,825,185
Net income			1,244,785		1,244,785
Stock based compensation		41,460			41,460
Issuance of stock through options exercised	2,500	14,200			16,700
Purchase of stock				(168,260)	(168,260)
Ending balance, value at Dec. 31, 2022	$ 1,110,708	$ 8,279,823	$ 7,083,600	$ (514,261)	$ 15,959,870
Ending balance, shares at Dec. 31, 2022					2,221,416
Ending balance, held in treasury, shares at Dec. 31, 2022					(79,416)
Common stock shares, outstanding at Dec. 31, 2022					2,142,000