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Accounts and Other Receivables
 12 Months Ended
Dec. 31, 2023
Trade and other receivables [abstract]  
Accounts and Other Receivables Accounts and Other Receivables
(1)Accounts and other receivables as of December 31, 2023 and 2022 are as follows:
December 31,
2023		December 31,
2022
(In millions of Korean won)
Accounts receivable
Non-related party₩69,867 ₩74,702 
Related party1,972 2,874 
Less : Loss allowance(626)(319)
Accounts receivables, net₩71,213 ₩77,257 
December 31,
2023		December 31,
2022
(In millions of Korean won)
Other receivables
Non-related party₩3,642 ₩145 
Related party— — 
Less: Loss allowance(5)(5)
Other receivables, net₩3,637 ₩140 
(2)Changes in the loss allowance of accounts and other receivables during the years ended December 31, 2023, 2022 and 2021 are as follows:
202320222021
(In millions of Korean won)
Accounts receivable
Beginning balance₩319 ₩689 ₩579 
Bad debt expenses1,402 701 933 
Reversal of allowance for doubtful accounts— — (132)
Write-off(1,095)(1,071)(691)
Ending balance₩626 ₩319 ₩689 
202320222021
(In millions of Korean won)
Other receivables
Beginning balance₩5 ₩5 ₩5 
Bad debt expenses— — — 
Reversal of allowance for doubtful accounts— — — 
Write-off— — — 
Ending balance₩5 ₩5 ₩5 
(3)Expected credit losses (ECLs) and credit risk exposures for accounts and other receivables as of December 31, 2023 and 2022 are as follows:
① Accounts receivables
As of December 31, 2023Expected
loss rate		Carrying
amount		Loss
allowance
(In millions of Korean won)
Not due or overdue less than 90 days0.6 %₩71,334 ₩438 
More than 90 days ~ Less than 180 days3.2 %315 10 
More than 180 days ~ Less than 270 days57.4 %27 16 
More than 270 days ~ Less than 1 year87.3 %5 4 
More than 1 year100.0 %158 158 
Total₩71,839 ₩626 
As of December 31, 2022Expected
loss rate		Carrying
amount		Loss
allowance
(In millions of Korean won)
Not due or overdue less than 90 days0.1 %₩77,073 ₩85 
More than 90 days ~ Less than 180 days18.2 %318 58 
More than 180 days ~ Less than 270 days46.6 %4 2 
More than 270 days ~ Less than 1 year82.3 %40 33 
More than 1 year100.0 %141 141 
Total₩77,576 ₩319 
② Other receivables
As of December 31, 2023Expected
loss rate		Carrying
amount		Loss
allowance
(In millions of Korean won)
Not due or overdue less than 90 days— %₩3,637 ₩— 
More than 90 days ~ Less than 180 days— %— — 
More than 180 days ~ Less than 270 days— %— — 
More than 270 days ~ Less than 1 year— %— — 
More than 1 year100 %5 5 
Total₩3,642 ₩5 
As of December 31, 2022Expected
loss rate		Carrying
amount		Loss
allowance
(In millions of Korean won)
Not due or overdue less than 90 days— %₩140 ₩— 
More than 90 days ~ Less than 180 days— %— — 
More than 180 days ~ Less than 270 days— %— — 
More than 270 days ~ Less than 1 year— %— — 
More than 1 year100 %5 5 
Total₩145 ₩5 
In assessing the recoverability of accounts receivable, the Group considers changes in the credit rating of accounts and other receivables from the commencement of the credit to the end of the reporting period.
The Group applies the simplified approach for account and other receivables to measure the loss allowance at an amount equal to lifetime expected credit losses. To measure the expected credit losses, account and other receivables are grouped based on credit risk characteristics and the duration of past due balances. ECLs are a probability-weighted estimate of credit losses. Credit losses are measured as the present value of all cash shortfalls. The Group considers reasonable and supportable information that is relevant and available without undue cost or effort. This includes the Group’s historical experience and informed credit assessment that includes forward-looking information.