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Financial Risk Management (Tables) | 12 Months Ended
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Dec. 31, 2021
Disclosure of detailed information about financial instruments [abstract] |
Schedule of Company's Debt to Equity Ratio | The debt ratios as of December 31, 2021 and 2020 are as follows:
| 2021 |  | 2020
| (In millions of Korean won)
Total liabilities | ₩ | 80,685 |  |  | ₩ | 88,024 |
Total equity | 246,841 |  |  | 177,348 |
Debt ratio | 33 | % |  | 50 | %
Schedule of Financial Assets and Liabilities Exposed in Foreign Currency Risk | The Group’s financial assets and liabilities are exposed to foreign currency risk as of December 31, 2021 and 2020 are as follows:
| December 31, 2021
| Assets in foreign currency |  | Liabilities in foreign currency |  | Assets in Korean Won |  | Liabilities in Korean Won
| (In each foreign currency) |  | (In millions of Korean won)
USD | 28,112,919 |  |  | 13,921,628 |  |  | ₩ | 33,328 |  |  | ₩ | 16,504 |
JPY | 690,658,516 |  |  | 88,019,006 |  |  | 7,115 |  |  | 907 |
EUR | 356,541 |  |  | 41,564 |  |  | 479 |  |  | 56 |
IDR | 12,955,000 |  |  | 3,103,944 |  |  | 1 |  |  | — |
THB | 28,510 |  |  | 7,379 |  |  | 1 |  |  | — |
TWD | 9,521,305 |  |  | — |  |  | 408 |  |  | — |
VND | 9,270,000 |  |  | 3,243,600 |  |  | — |  |  | — |
Total |  |  |  |  | ₩ | 41,332 |  |  | ₩ | 17,467 |
| December 31, 2020
| Assets in foreign currency |  | Liabilities in foreign currency |  | Assets in Korean Won |  | Liabilities in Korean Won
| (In each foreign currency) |  | (In millions of Korean won)
USD | 29,204,905 |  |  | 15,715,800 |  |  | ₩ | 31,775 |  |  | ₩ | 17,099 |
JPY | 388,760,925 |  |  | 198,432,867 |  |  | 4,099 |  |  | 2,092 |
EUR | 344,842 |  |  | 8,399 |  |  | 461 |  |  | 11 |
IDR | 12,955,000 |  |  | 15,289,944 |  |  | 1 |  |  | 1 |
THB | 28,510 |  |  | 7,379 |  |  | 1 |  |  | — |
TWD | 105,408,193 |  |  | 3,264,754 |  |  | 4,076 |  |  | 126 |
VND | 9,270,000 |  |  | 3,243,600 |  |  | — |  |  | — |
Total |  |  |  |  | ₩ | 40,413 |  |  | ₩ | 19,329 |
Summary of Impact of Fluctuation in Foreign Currency Exchange Rates on Group's Monetary Assets and Liabilities | The impact of a 10% fluctuation in foreign currency exchange rates on the Group’s monetary assets and liabilities as of December 31, 2021 and 2020 are as follows:
| December 31, 2021 |  | December 31, 2020
| Increased by 10% |  | Decreased by 10% |  | Increased by 10% |  | Decreased by 10%
| (In millions of Korean won)
USD | ₩ | 1,682 |  |  | ₩ | (1,682) |  |  | ₩ | 1,468 |  |  | ₩ | (1,468) |
JPY | 621 |  |  | (621) |  |  | 201 |  |  | (201) |
Others | 83 |  |  | (83) |  |  | 440 |  |  | (440) |
Total | ₩ | 2,386 |  |  | ₩ | (2,386) |  |  | ₩ | 2,109 |  |  | ₩ | (2,109) |
Summary of Maximum Exposure to Credit Risk | The carrying amount of a financial asset represents the maximum exposure to credit risk. The maximum exposure to credit risk of the Group as of December 31, 2021 and 2020 are as follows.
| December 31, 2021 |  | December 31, 2020
| (In millions of Korean won)
Cash and cash equivalents | ₩ | 99,105 |  |  | ₩ | 110,632 |
Short-term financial instruments | 148,000 |  |  | 71,000 |
Accounts receivable, net | 52,615 |  |  | 59,761 |
Other receivables, net | 6 |  |  | 8 |
Other current financial assets | 598 |  |  | 818 |
Other non-current financial assets | 3,019 |  |  | 1,324 |
Total | ₩ | 303,343 |  |  | ₩ | 243,543 |
Summary of Financial Liabilities by Maturity | The following table summarizes the financial liabilities of the Group by maturity according to the remaining period from the end of the reporting period to the contractual maturity date.
| December 31, 2021
| Carrying value |  | Less than 3 months |  | 3 months ~ 1 year |  | 1~2 years |  | 2~3 years |  | 3~4 years |  | Total
| (In millions of Korean won)
Accounts payable | ₩ | 37,593 |  |  | ₩ | 28,907 |  |  | ₩ | 7,958 |  |  | ₩ | 728 |  |  | ₩ | — |  |  | ₩ | — |  |  | ₩ | 37,593 |
Accrued expense | 49 |  |  | 49 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 49 |
Other liabilities (*) | 8,730 |  |  | 988 |  |  | 2,715 |  |  | 2,602 |  |  | 2,135 |  |  | 461 |  |  | 8,901 |
Total | ₩ | 46,372 |  |  | ₩ | 29,944 |  |  | ₩ | 10,673 |  |  | ₩ | 3,330 |  |  | ₩ | 2,135 |  |  | ₩ | 461 |  |  | ₩ | 46,543 |
(*)Other liabilities as at December 31, 2021 consist of lease liabilities.
| December 31, 2020
| Carrying value |  | Less than 3 months |  | 3 months ~ 1 year |  | 1~2 years |  | 2~3 years |  | 3~5 years |  | Total
| (In millions of Korean won)
Accounts payable | ₩ | 54,090 |  |  | ₩ | 43,438 |  |  | ₩ | 9,250 |  |  | ₩ | 1,402 |  |  | ₩ | — |  |  | ₩ | — |  |  | ₩ | 54,090 |
Accrued expense | 62 |  |  | 62 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 62 |
Other liabilities (*) | 5,900 |  |  | 812 |  |  | 2,107 |  |  | 2,146 |  |  | 597 |  |  | 733 |  |  | 6,395 |
Total | ₩ | 60,052 |  |  | ₩ | 44,312 |  |  | ₩ | 11,357 |  |  | ₩ | 3,548 |  |  | ₩ | 597 |  |  | ₩ | 733 |  |  | ₩ | 60,547 |
(*)Other liabilities as at December 31, 2020 consist of lease liabilities.

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