Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock [Member] Series A Preferred Stock [Member]	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Jan. 31, 2021		$ 357	$ (149,500)	$ 20,535,793	$ (12,076,904)	$ 8,309,746
Beginning balance, shares at Jan. 31, 2021		35,603,731	(230,000)
Stock issued for the exercise of options		$ 1		19,079		19,080
Stock options issued exercise of options, shares		65,143
Net income					631,524	631,524
Stock options issued for services				501		501
Ending balance, value at Apr. 30, 2021		$ 358	$ (149,500)	20,555,373	(11,445,380)	8,960,851
Ending balance, shares at Apr. 30, 2021		35,668,874	(230,000)
Beginning balance, value at Jan. 31, 2022		$ 359	$ (149,500)	20,587,789	(12,328,830)	8,109,818
Beginning balance, shares at Jan. 31, 2022		35,758,792	(230,000)
Stock issued for the exercise of options
Stock options issued exercise of options, shares		15,676
Net income					103,697	103,697
Ending balance, value at Apr. 30, 2022		$ 359	$ (149,500)	$ 20,587,789	$ (12,225,133)	$ 8,213,515
Ending balance, shares at Apr. 30, 2022		35,774,468	(230,000)