Stockholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands							9 Months Ended	12 Months Ended
	Jul. 01, 2024	Dec. 18, 2023	Sep. 19, 2023	Jun. 01, 2023	Aug. 02, 2022	Aug. 01, 2022	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 29, 2023
Class Of Stock [Line Items]
Stock issued during period shares new issues					662,000
Common stock shares authorized							75,000,000	75,000,000	75,000,000
Sales agreement aggregate offering price		$ 10,900
Payment of prior year issuance costs									$ 43
Net proceeds available under the stock purchase agreement					$ 2,008
Common stock, shares issued							55,305,000	55,305,000	1,692,000
Shares issued for services, shares									16,000
Shares issued for services									$ 110
Number of options granted								89,000	78,000
Weighted average contractual term								7 years 8 months 19 days	8 years 9 months 29 days
Purchase Agreement [Member]
Class Of Stock [Line Items]
Sale of stock price per share					$ 10.12
Stock issued during period shares new issues					33,000
Net proceeds available under the stock purchase agreement									$ 1,903
Common stock, shares issued									229,000
Maximum committed purchase obligation					$ 2,000
Aggregate number of shares sell					262,000
Percentage of aggregate number of shares sell					19.99%
Maximum [Member] | Purchase Agreement [Member]
Class Of Stock [Line Items]
Amount of purchase common stock issued					$ 20,000
2017 Omnibus Incentive Plan [Member]
Class Of Stock [Line Items]
Common stock, shares issued							440,000	440,000
Percentage of fully diluted shares of common stock								8.00%
2017 Omnibus Incentive Plan [Member]
Class Of Stock [Line Items]
Stock option vesting description								vest as to 25% on August 30, 2024, with the remaining portion vesting in equal monthly installments over a period of 36 months from September 30, 2024 to September 30, 2027. All of the options to purchase shares of common stock granted have a 10-year term and are subject to cancellation upon the grantees’ termination of service for the Company, with certain exceptions.
Stock option term								10 years
Employee Stock Option
Class Of Stock [Line Items]
Number of options granted								89,000	78,000
Stock option exercise price							$ 4.655	$ 4.655
Vesting rights, percentage								25.00%
Aggregate intrinsic value of stock options outstanding							$ 0	$ 0	$ 0
Aggregate intrinsic value of stock options exercisable							0	0	0
Unrecognized compensation expense							322	$ 322
Unrecognized compensation expense, term								2 years 7 days
Aggregate intrinsic value of unvested stock options								$ 0	$ 0
Restricted Stock Units [Member]
Class Of Stock [Line Items]
Stock issued during period shares new issues								4,000
Number of options granted									78,000
Total expense for restricted stock units issuance				$ 186		$ 155
Vesting period				1 year		4 years
Vested and converted to common shares								4,000
Amount recognized related to RSU							$ 171	$ 171	$ 90
Restricted Stock Units [Member] | Subsequent Event [Member]
Class Of Stock [Line Items]
Vested and converted to common shares	60,000
Regular Purchase [Member] | Purchase Agreement [Member]
Class Of Stock [Line Items]
Stock issued during period shares new issues					10,000
Common stock
Class Of Stock [Line Items]
Common stock shares authorized									75,000,000	5,500,000
Officers [Member] | Restricted Stock Units [Member]
Class Of Stock [Line Items]
Stock issued during period shares new issues				60,000		18,000
Stock option commencing date, Description				Subject to providing continuous service to the Company, the RSUs all fully vest on June 1, 2024.		Subject to providing continuous service to the Company, the RSUs vest in four equal annual installments commencing August 1, 2023
Private Placement [Member] | Series C Preferred Stock Warrants [Member]
Class Of Stock [Line Items]
Shares issued of common stock for services								2,504,000
Shares issued, price per share							$ 1,000	$ 1,000
ATM Facility [Member]
Class Of Stock [Line Items]
Sale of stock price per share							$ 0.21	$ 0.21
Sales agreement aggregate offering price			$ 2,850
Net proceeds							$ 10,471	$ 10,471
Payment of prior year issuance costs							$ 435
Aggregate number of shares sell							53,151,000	53,151,000
ATM Facility [Member] | Sales Agreement [Member]
Class Of Stock [Line Items]
Commission rate			3.00%
Lincoln Park [Member]
Class Of Stock [Line Items]
Sale of stock price per share							$ 0.23	$ 0.23
Net proceeds								$ 105
Aggregate number of shares sell								400,000