Summary of Significant Accounting Policies - Narrative (Details)	3 Months Ended		9 Months Ended
	Oct. 31, 2024 USD ($) $ / shares shares	Oct. 31, 2023 USD ($)	Oct. 31, 2024 USD ($) Segment $ / shares shares	Oct. 31, 2023 USD ($)	Jan. 31, 2024 USD ($)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of reportable segments | Segment			1
Cash, exceeded federally insured limits	$ 8,500,000		$ 8,500,000
Reserve for uncollectable accounts	93,000		93,000		$ 93,000
Uncollectible accounts written off	0	$ 0	0	$ 140,000
Reserve for obsolete inventory	95,000		95,000		95,000
Goodwill impairment losses	0		0
Research and development expenses	155,000	124,000	352,000	290,000
Advertising expenses	663,000	$ 380,000	1,480,000	$ 779,000
Deferred tax asset	$ 413,000		$ 413,000		$ 503,000
Executive Officer One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Fair value of common stock (in dollars per share) | $ / shares	$ 1.17		$ 1.17
Executive Officer Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Fair value of common stock (in dollars per share) | $ / shares	$ 1.40		$ 1.40
Performance stock awards
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vested (in shares) | shares	0		0
Performance stock awards | Executive Officer One
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected volatility (as a percent)			85.70%
Term of award (in years)			5 years
Risk-free interest rate (as a percent)			3.70%
Dividend yield (as a percent)			0.00%
Performance stock awards | Executive Officer Two
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected volatility (as a percent)			87.00%
Term of award (in years)			5 years
Risk-free interest rate (as a percent)			3.40%
Dividend yield (as a percent)			0.00%