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Debt - Borrowings Pursuant to Term Loan and Security Agreements - Additional Information (Details) $ in Thousands, ₩ in Millions	1 Months Ended									3 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2024 USD ($)	Jul. 31, 2024 KRW (₩)	Jun. 30, 2024 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2024 KRW (₩)	Mar. 31, 2024 USD ($)	Mar. 31, 2024 KRW (₩)	Dec. 31, 2023 USD ($)	Jul. 31, 2016 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 KRW (₩)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 KRW (₩)	Dec. 31, 2017 USD ($)	Jul. 31, 2024 KRW (₩)	Apr. 30, 2024 KRW (₩)	Dec. 31, 2023 KRW (₩)	Dec. 31, 2022 KRW (₩)	Sep. 30, 2022 USD ($)	Sep. 30, 2022 KRW (₩)	May 31, 2022 USD ($)	May 31, 2022 KRW (₩)	Apr. 30, 2022 USD ($)	Apr. 30, 2022 KRW (₩)	Dec. 31, 2021 KRW (₩)	Oct. 31, 2021 USD ($)	Oct. 31, 2021 KRW (₩)	Jun. 30, 2021 USD ($)	Dec. 31, 2017 KRW (₩)	Jan. 31, 2017 USD ($)	Jan. 31, 2017 KRW (₩)	Jul. 31, 2016 KRW (₩)
Borrowings
Amount outstanding								$ 79,856				$ 41,819
Amount repaid												14,065	$ 23
Borrowings
Borrowings
Amount outstanding												32,819
KEB Hana Bank | Borrowings
Borrowings
Principal amount									$ 6,700																									₩ 9,000.0
Annual interest rate									2.60%
Additional extension term (in years)																1 year
Principal amount of loan extended maturity date				$ 700														₩ 1,000.0
Amount outstanding								6,980				$ 6,820
KEB Hana Bank | Borrowings | Minimum
Borrowings
Annual interest rate			3.50%
KEB Hana Bank | Borrowings | Maximum
Borrowings
Annual interest rate			5.20%
IBK Industrial Bank | Borrowings
Borrowings
Principal amount	$ 6,000																₩ 8,000.0															$ 6,800	₩ 9,200.0
Interest rate (as a percent)	4.90%			3.50%								4.90%					4.90%	3.50%
Amount outstanding								7,135				$ 6,972
Note payable (one individual investor) | Borrowings
Borrowings
Principal amount																														$ 1,000
Interest rate (as a percent)			4.00%
Amount outstanding								1,000
M-Venture Investment, Inc. | Borrowings
Borrowings
Amount outstanding								7,756
M-Venture Investment, Inc. | Term loan and security agreement, one
Borrowings
Principal amount																												$ 3,700	₩ 5,000.0
Interest rate (as a percent)												6.50%
Amount outstanding														$ 3,000						₩ 4,000.0
Amount repaid				$ 1,500	₩ 2,000.0					$ 400	₩ 600.0			300	₩ 400.0
M-Venture Investment, Inc. | Term loan and security agreement, two, draw one
Borrowings
Principal amount																									$ 700	₩ 1,000.0
Interest rate (as a percent)												6.50%
Principal amount of loan extended maturity date				700														₩ 1,000.0
M-Venture Investment, Inc. | Term loan and security agreement, two, draw two
Borrowings
Principal amount																									$ 3,700	₩ 5,000.0
Interest rate (as a percent)												8.70%
Principal amount of loan extended maturity date				$ 3,700														₩ 5,000.0
M-Venture Investment, Inc. | Term loans
Borrowings
Repayment of short term loan	$ 700	₩ 1,000.0
Mujin Electronics Co., Ltd. | Borrowings
Borrowings
Amount outstanding												$ 3,789
Mujin Electronics Co., Ltd. | Term loan and security agreement, one
Borrowings
Principal amount	$ 3,700																₩ 5,000.0
Interest rate (as a percent)	6.80%																6.80%
Anapass, Inc, related party | Borrowings
Borrowings
Amount outstanding								10,082				$ 9,851
Anapass, Inc, related party | Term loan and security agreement, one
Borrowings
Principal amount									$ 4,500																									₩ 6,000.0
Interest rate (as a percent)									5.50%																									5.50%
Anapass, Inc, related party | Term loan and security agreement, two
Borrowings
Interest rate (as a percent)												5.50%
Anapass, Inc, related party | Term loan and security agreement, two, draw one
Borrowings
Principal amount																							$ 2,200	₩ 3,000.0
Anapass, Inc, related party | Term loan and security agreement, two, draw two
Borrowings
Principal amount																					$ 3,000	₩ 4,000.0
i Best Investment Co., Ltd | Borrowings
Borrowings
Principal amount								$ 10,300						$ 10,300					₩ 14,000.0	₩ 14,000.0
Interest rate (as a percent)								6.50%						6.50%					6.50%	6.50%
Amount outstanding								$ 10,082				$ 4,546
i Best Investment Co., Ltd | Term loan and security agreement, draw two
Borrowings
Amount repaid								800
i Best Investment Co., Ltd | Term loan and security agreement, draw three
Borrowings
Amount repaid			$ 1,400
i Best Investment Co., Ltd | Term loan and security agreement, draw four
Borrowings
Amount repaid						$ 2,300
Kyeongho Lee | Borrowings
Borrowings
Amount outstanding								$ 1,474				$ 841
Kyeongho Lee | Promissory notes
Borrowings
Principal amount										$ 400						$ 400											₩ 500.0				₩ 500.0
Kyeongho Lee | Promissory notes | Minimum
Borrowings
Interest rate (as a percent)										7.50%						7.50%											7.50%				7.50%
Kyeongho Lee | Promissory notes | Maximum
Borrowings
Interest rate (as a percent)										9.00%						9.00%											9.00%				9.00%
Kyeongho Lee | Term loans
Borrowings
Principal amount										$ 100						$ 700											₩ 110.0				₩ 1,000.0
Amount repaid						$ 700	₩ 1,000.0

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