Condensed Consolidated Statements of Changes in Stockholders’ Equity (Unaudited) - USD ($) $ in Thousands	Total	Series A Preferred Stock	Series B Preferred Stock	Preferred Stock Series A Preferred Stock	Preferred Stock Series B Preferred Stock	Common Stock	Treasury Stock	Additional Paid In Capital	Accumulated Deficit
Beginning balance, preferred stock (in shares) at Jan. 31, 2023				0	55,000
Beginning balance at Jan. 31, 2023	$ 12,515			$ 0	$ 0	$ 0	$ (150)	$ 22,724	$ (10,059)
Beginning balance, common stock (in shares) at Jan. 31, 2023						36,318,000
Beginning balance, treasury stock (in shares) at Jan. 31, 2023							(230,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation	55							55
Stock issued for the exercise of options and warrants (in shares)						167,000
Stock issued for the exercise of options and warrants	19							19
Series B Preferred dividend	(27)								(27)
Net income	1,401								1,401
Ending balance, preferred stock (in shares) at Apr. 30, 2023				0	55,000
Ending balance at Apr. 30, 2023	13,963			$ 0	$ 0	$ 0	$ (150)	22,798	(8,685)
Ending balance, common stock (in shares) at Apr. 30, 2023						36,485,000
Ending balance, treasury stock (in shares) at Apr. 30, 2023							(230,000)
Beginning balance, preferred stock (in shares) at Jan. 31, 2024		0	0	0	0
Beginning balance at Jan. 31, 2024	$ 19,581			$ 0	$ 0	$ 0	$ (150)	23,278	(3,547)
Beginning balance, common stock (in shares) at Jan. 31, 2024	37,258,239					37,488,000
Beginning balance, treasury stock (in shares) at Jan. 31, 2024	(230,000)						(230,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation	$ 205							205
Stock issued for the exercise of options and warrants	7							7
Net income	553								553
Ending balance, preferred stock (in shares) at Apr. 30, 2024		0	0	0	0
Ending balance at Apr. 30, 2024	$ 20,346			$ 0	$ 0	$ 0	$ (150)	$ 23,490	$ (2,994)
Ending balance, common stock (in shares) at Apr. 30, 2024	37,263,096					37,488,000
Ending balance, treasury stock (in shares) at Apr. 30, 2024	(230,000)						(230,000)