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Stockholders' Equity - Narrative (Details)		12 Months Ended		43 Months Ended
Stockholders' Equity - Narrative (Details)	Jan. 01, 2013 USD ($) offering_period shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) shares	Aug. 21, 2024 USD ($)	Aug. 20, 2024 USD ($)	Jun. 30, 2024 shares	Jun. 30, 2023 shares	Sep. 30, 2022 shares	Sep. 21, 2022	Jun. 30, 2021 shares	Jun. 04, 2021 USD ($)	Jun. 30, 2020 shares	Jun. 30, 2018 shares	May 31, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)									333,333
Outstanding stock threshold \| $					$ 75,000,000
Net proceeds from issuance of common stock \| $		$ 68,000	$ 321,000
ATM Agreement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate offering amount authorized per agreement \| $												$ 50,000,000
Common stock outstanding \| $					$ 29,600,000
Amount available for sale \| $						$ 9,855,890
Percentage held by non-affiliates										33.00%
Stock issued (in shares)		3,779		68,173
Net proceeds from issuance of common stock \| $		$ 10,074		$ 280,848
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average estimated fair value (in dollars per share) \| $ / shares		$ 3.08	$ 3.00
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting terms (in years)		1 year
Restricted Stock \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting terms (in years)		4 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting terms (in years)		1 year
Weighted average estimated fair value (in dollars per share) \| $ / shares		$ 3.08	$ 3.00
2018 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)							600,000	400,000			400,000		166,667
Number of shares available for future grant (in shares)		744,514	593,141	744,514
2018 Plan \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting terms (in years)		3 years
2018 Plan \| Stock options \| Share-based award tranche one
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (in years)		2 years
2018 Plan \| Stock options \| Share-based award tranche two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (in years)		3 years
2018 Plan \| Stock options \| Share-based award tranche three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period (in years)		10 years
2012 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)	3,333
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of offering periods \| offering_period	2
Term of offering period	6 months
Maximum annual contribution per employee as percent of annual salary	15.00%
Maximum annual contribution per employee \| $	$ 25,000
Purchase price measurement as percent of closing price on enrollment date	85.00%
Purchase price measurement as percent of closing price on exercise date	85.00%
2017 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)															6,667
Amended 2017 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)							113,333	68,333						33,333
Number of shares available for future grant (in shares)		43,121	21,911	43,121
Shares issued under ESPP (in shares)		23,790