Debt - Additional Information (Details) ₩ in Billions	May 08, 2023 USD ($) Rate	Feb. 15, 2023 USD ($) Rate	May 27, 2022 USD ($)	Jun. 30, 2023 USD ($) customer	Jun. 30, 2023 KRW (₩) customer	Jun. 15, 2023 USD ($)	Jun. 15, 2023 KRW (₩)	Mar. 31, 2023 USD ($)	Mar. 31, 2023 KRW (₩)	Mar. 30, 2023 USD ($)	Mar. 30, 2023 KRW (₩)	Dec. 31, 2022 USD ($)	Oct. 31, 2022 USD ($)	Oct. 31, 2022 KRW (₩)	Feb. 09, 2022 USD ($)
Line of Credit Facility [Line Items]
Minimum EBITDA for the fiscal quarter ending March 31, 2023		$ 1,000,000
Minimum EBITDA for the fiscal quarter ending June 30, 2023		$ 1
Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity		0.40%
Accounts receivable
Line of Credit Facility [Line Items]
Number of customers included in accounts receivable collateral | customer				1	1
Investor | November 2022 DNI Loan
Line of Credit Facility [Line Items]
DNI Loan | ₩														₩ 7.2
Interest rate													6.00%	6.00%
Investor | February 2023 DNI Loan
Line of Credit Facility [Line Items]
DNI Loan				$ 3,000,000				$ 4,100,000	₩ 5.0
Interest rate								7.00%	7.00%
Loan value, short term debt				3,039,000								$ 5,706,000
Investor | May 2023 DNI Loan
Line of Credit Facility [Line Items]
DNI Loan				$ 3,000,000.0	₩ 4.0
Interest rate				7.00%	7.00%
Second Amendment to Credit Agreement | Line of Credit
Line of Credit Facility [Line Items]
Credit facility, current borrowing capacity				$ 7,600,000
Maximum leverage ratio through September 30, 2023 | Rate		250.00%
Minimum fixed charge coverage ratio until December 31, 2023 | Rate		125.00%
Minimum required liquidity, fiscal quarter ending March 31, 2023		$ 30,000,000
Minimum required liquidity, fiscal quarter ending June 30, 2023 and September 30, 2023		35,000,000
Minimum required liquidity, any time until September 30, 2023		$ 20,000,000
Leverage ratio (in excess of) | Rate		250.00%
Debt obligations				23,400,000
Unamortized issuance costs				400,000
Payments due in the next 12 months				1,300,000
Letters of credit issued				(1,400,000)
Portion of long term debt not in compliance with covenants				22,500,000								23,100,000
Second Amendment to Credit Agreement | Adjusted Term SOFR Rate | Line of Credit | Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings		4.00%
Second Amendment to Credit Agreement | Prime Rate | Line of Credit | Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings		3.00%
November 2022 DNI Loan | Investor | Short-Term Debt
Line of Credit Facility [Line Items]
DNI Loan													$ 5,000,000
February 2023 DNI Loan | Inventories
Line of Credit Facility [Line Items]
Collateral for related party loans				26,600,000	₩ 35.0
February 2023 DNI Loan | Accounts receivable
Line of Credit Facility [Line Items]
Collateral for related party loans				3,700,000	4.9
February 2023 DNI Loan | Minimum | Inventories
Line of Credit Facility [Line Items]
Collateral for related party loans				7,600,000	10.0
Industrial Bank of Korea Loan
Line of Credit Facility [Line Items]
Interest rate										6.30%	6.30%
Loan value, short term debt										$ 900,000	₩ 1.2
Third Amendment to Credit Agreement | Line of Credit
Line of Credit Facility [Line Items]
Minimum EBITDA for the fiscal quarter ending March 31, 2023	$ 1,000,000
Leverage ratio (in excess of) | Rate	250.00%
Borrowing base decrease through June 30, 2023	$ 5,000,000
Additional borrowing base decrease after June 30, 2023	$ 5,000,000
Third Amendment to Credit Agreement | Adjusted Term SOFR Rate | Line of Credit | Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings	4.50%
Third Amendment to Credit Agreement | Prime Rate | Line of Credit | Leverage Ratio Exceeds 2.5
Line of Credit Facility [Line Items]
Margins for borrowings	3.50%
Shinhan Bank
Line of Credit Facility [Line Items]
Interest rate						5.20%	5.20%
Loan value, short term debt				$ 4,558,000	₩ 6.0	$ 4,700,000	₩ 6.0					$ 0
JPMorgan Credit Facility | Letter of Credit
Line of Credit Facility [Line Items]
Maximum borrowing amount															$ 15,000,000.0
Revolving Credit Agreement
Line of Credit Facility [Line Items]
Maximum borrowing amount			$ 30,000,000.0
Revolving Credit Agreement | Third Amendment to Credit Agreement | Line of Credit
Line of Credit Facility [Line Items]
Maximum borrowing amount						$ 25,000,000
Revolving Credit Agreement | JPMorgan Credit Facility
Line of Credit Facility [Line Items]
Maximum borrowing amount															30,000,000.0
Credit facility, current borrowing capacity															$ 10,000,000.0
Amendment to Credit Agreement
Line of Credit Facility [Line Items]
Maximum permitted leverage ratio through September 30, 2022			3.00
Maximum permitted leverage ratio through September 30, 2023			2.50
Maximum permitted leverage ratio after September 30 2023			2.00
Minimum permitted fixed charge coverage ratio			1.25
Amendment to Credit Agreement | Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity			0.25%
Amendment to Credit Agreement | Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage on unused capacity			0.35%
Amendment to Credit Agreement | Adjusted Term SOFR Rate | Minimum
Line of Credit Facility [Line Items]
Margins for borrowings			3.00%
Amendment to Credit Agreement | Adjusted Term SOFR Rate | Maximum
Line of Credit Facility [Line Items]
Margins for borrowings			3.50%
Amendment to Credit Agreement | Prime Rate | Minimum
Line of Credit Facility [Line Items]
Margins for borrowings			2.00%
Amendment to Credit Agreement | Prime Rate | Maximum
Line of Credit Facility [Line Items]
Margins for borrowings			2.50%
Amendment to Credit Agreement | Letter of Credit | Minimum
Line of Credit Facility [Line Items]
Commitment fee percentage			3.00%
Amendment to Credit Agreement | Letter of Credit | Maximum
Line of Credit Facility [Line Items]
Commitment fee percentage			3.50%
Amendment to Credit Agreement | Term Loan
Line of Credit Facility [Line Items]
Maximum borrowing amount			$ 25,000,000.0