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 (in shares)						20,000
Stock based compensation	160							160
Stock issued for the exercise of options and warrants (in shares)						187,000
Stock issued for the exercise of options and warrants	28							28
Issuance of shares for director settlement	0
Conversion of Series B preferred stock (in shares)					55,000	819,000
Series B Preferred dividend	(49)		$ (49)
Net income	3,144								3,144
Ending balance, preferred stock (in shares) at Jul. 31, 2023				0	0
Ending balance at Jul. 31, 2023	15,798			$ 0	$ 0	$ 0	$ (150)	22,912	(6,964)
Ending balance, common stock (in shares) at Jul. 31, 2023						37,344,000
Ending balance, treasury stock (in shares) at Jul. 31, 2023							(230,000)
Beginning balance, preferred stock (in shares) at Apr. 30, 2023				0	55,000
Beginning balance at Apr. 30, 2023	13,963			$ 0	$ 0	$ 0	$ (150)	22,798	(8,685)
Beginning balance, common stock (in shares) at Apr. 30, 2023						36,485,000
Beginning balance, treasury stock (in shares) at Apr. 30, 2023							(230,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation (in shares)						20,000
Stock based compensation	105							105
Stock issued for the exercise of options and warrants (in shares)						20,000
Stock issued for the exercise of options and warrants	9							9
Conversion of Series B preferred stock (in shares)					55,000	819,000
Series B Preferred dividend	(21)		$ (21)
Net income	1,742								1,742
Ending balance, preferred stock (in shares) at Jul. 31, 2023				0	0
Ending balance at Jul. 31, 2023	15,798			$ 0	$ 0	$ 0	$ (150)	22,912	(6,964)
Ending balance, common stock (in shares) at Jul. 31, 2023						37,344,000
Ending balance, treasury stock (in shares) at Jul. 31, 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 (in shares)						77,000
Stock based compensation	$ 521							521
Stock issued for the exercise of options (in shares)	30,000					30,000
Stock issued for the exercise of options	$ 44							44
Issuance of shares for director settlement (in shares)						68,000
Issuance of shares for director settlement	450							450
Net income	1,701								1,701
Ending balance, preferred stock (in shares) at Jul. 31, 2024		0	0	0	0
Ending balance at Jul. 31, 2024	$ 22,297			$ 0	$ 0	$ 0	$ (150)	24,293	(1,846)
Ending balance, common stock (in shares) at Jul. 31, 2024	37,433,041					37,663,000
Ending balance, treasury stock (in shares) at Jul. 31, 2024	(230,000)						(230,000)
Beginning balance, preferred stock (in shares) at Apr. 30, 2024				0	0
Beginning balance at Apr. 30, 2024	$ 20,346			$ 0	$ 0	$ 0	$ (150)	23,490	(2,994)
Beginning balance, common stock (in shares) at Apr. 30, 2024						37,488,000
Beginning balance, treasury stock (in shares) at Apr. 30, 2024							(230,000)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation (in shares)						77,000
Stock based compensation	316							316
Stock issued for the exercise of options and warrants (in shares)						30,000
Stock issued for the exercise of options and warrants	37							37
Issuance of shares for director settlement (in shares)						68,000
Issuance of shares for director settlement	450							450
Net income	1,148								1,148
Ending balance, preferred stock (in shares) at Jul. 31, 2024		0	0	0	0
Ending balance at Jul. 31, 2024	$ 22,297			$ 0	$ 0	$ 0	$ (150)	$ 24,293	$ (1,846)
Ending balance, common stock (in shares) at Jul. 31, 2024	37,433,041					37,663,000
Ending balance, treasury stock (in shares) at Jul. 31, 2024	(230,000)						(230,000)