Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	3 Months Ended
	Apr. 30, 2023	Jan. 31, 2023	Apr. 30, 2022
Preferred Stock [Member] | Series A Preferred Stock [Member]
Statement [Line Items]
Beginning balance, value
Beginning balance, shares
Stock based compensation
Stock issued for the exercise of options
Series B Preferred dividend
Net income
Ending balance, value
Ending balance, shares
Preferred Stock [Member] | Series B Preferred Stock [Member]
Statement [Line Items]
Beginning balance, value
Beginning balance, shares	54,600
Stock based compensation
Stock issued for the exercise of options
Series B Preferred dividend
Net income
Ending balance, value
Ending balance, shares	54,600	54,600
Common Stock [Member]
Statement [Line Items]
Beginning balance, value	$ 364		$ 359
Beginning balance, shares	36,317,857		35,758,792
Stock based compensation
Stock issued for the exercise of options	$ 2
Stock issued for the exercise of options, shares	166,920		15,676
Series B Preferred dividend
Net income
Ending balance, value	$ 366	$ 364	$ 359
Ending balance, shares	36,484,777	36,317,857	35,774,468
Treasury Stock, Common [Member]
Statement [Line Items]
Beginning balance, value	$ (149,500)		$ (149,500)
Beginning balance, shares	(230,000)		(230,000)
Stock based compensation
Stock issued for the exercise of options
Series B Preferred dividend
Net income
Ending balance, value	$ (149,500)	$ (149,500)	$ (149,500)
Ending balance, shares	(230,000)	(230,000)	(230,000)
Additional Paid-in Capital [Member]
Statement [Line Items]
Beginning balance, value	$ 22,724,440		$ 20,587,789
Stock based compensation	55,384
Stock issued for the exercise of options	19,498
Series B Preferred dividend
Net income
Ending balance, value	22,799,322	$ 22,724,440	20,587,789
Retained Earnings [Member]
Statement [Line Items]
Beginning balance, value	(10,060,226)		(12,328,830)
Stock based compensation
Stock issued for the exercise of options
Series B Preferred dividend	(27,300)
Net income	1,400,926		103,697
Ending balance, value	(8,686,600)	(10,060,226)	(12,225,133)
Beginning balance, value	12,515,078		8,109,818
Stock based compensation	55,384
Stock issued for the exercise of options	$ 19,500	$ 19,500
Stock issued for the exercise of options, shares	200,000	200,000
Series B Preferred dividend	$ (27,300)
Net income	1,400,926		103,697
Ending balance, value	$ 13,963,588	$ 12,515,078	$ 8,213,515