Summary of Significant Accounting Policies - Narrative (Details) - USD ($) shares in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Concentration Risk [Line Items]
Foreign currency transaction gain (loss), realized	$ (32,000)	$ (500,000)	$ (200,000)	$ (500,000)
Bad debt expenses	0	0	0	0
Inventory valuation reserves	2,900,000		2,900,000		$ 500,000
Deferred revenue	700,000		700,000		700,000
Revenue recognized related to accrued loyalty points	$ 33,000	(300,000)	$ 24,000	(500,000)
Money back guarantee period			30 days
Return period for resalable and restockable Items			12 months
Refund percent for resalable and restockable Items	100.00%		100.00%
Handling and restocking fee, percentage (as a percent)	10.00%		10.00%
Return liability reserve	$ 200,000		$ 200,000		200,000
Research and development	200,000	200,000	600,000	500,000
Income tax expense	$ 197,000	$ 539,000	$ 284,000	$ 1,291,000
Antidilutive securities excluded from EPS calculation (in shares)	0.2	0.1	0.2	0.1
Cash accounts held primarily at One Financial Institution
Concentration Risk [Line Items]
Concentration of credit risk			$ 7,800,000		17,000,000
Cash held primarily at Other Financial Institutions
Concentration Risk [Line Items]
Concentration of credit risk			$ 2,400,000		$ 3,200,000