Consolidated Statements of Changes in Stockholders’ Equity - 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, 2022				0	0
Beginning balance, common stock (in shares) at Jan. 31, 2022						35,759,000
Beginning balance, treasury stock (in shares) at Jan. 31, 2022							(230,000)
Beginning balance at Jan. 31, 2022	$ 8,109			$ 0	$ 0	$ 0	$ (150)	$ 20,588	$ (12,329)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock-based compensation	$ 110							110
Stock issued for the exercise of options (in shares)	130,000					57,000
Stock issued for the exercise of options	$ 26							26
Stock issued for the acquisition of equity investment (in shares)						502,000
Stock issued for the acquisition of equity investment	700							700
Issuance of Preferred B Shares, net of issuance costs (in shares)			55,000		55,000
Issuance of Preferred B Shares, net of issuance costs	1,300		$ 1,300					1,300
Series B Preferred dividend	(34)								(34)
Net income	$ 2,304								2,304
Ending balance, preferred stock (in shares) at Jan. 31, 2023		0	54,600	0	55,000
Ending balance, common stock (in shares) at Jan. 31, 2023	36,087,857					36,318,000
Ending balance, treasury stock (in shares) at Jan. 31, 2023	(230,000)						(230,000)
Ending balance at Jan. 31, 2023	$ 12,515			$ 0	$ 0	$ 0	$ (150)	22,724	(10,059)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation (in shares)						138,000
Stock-based compensation	486							486
Stock issued for the exercise of options and warrants (in shares)						213,000
Stock issued for the exercise of options and warrants	$ 68							68
Stock issued for the exercise of options (in shares)	232,500
Conversion of Series B preferred stock (in shares)					55,000	819,000
Series B Preferred dividend	$ (49)								(49)
Net income	$ 6,561								6,561
Ending balance, preferred stock (in shares) at Jan. 31, 2024		0	0	0	0
Ending balance, common stock (in shares) at Jan. 31, 2024	37,258,239					37,488,000
Ending balance, treasury stock (in shares) at Jan. 31, 2024	(230,000)						(230,000)
Ending balance at Jan. 31, 2024	$ 19,581			$ 0	$ 0	$ 0	$ (150)	$ 23,278	$ (3,547)