XML 37 R26.htm IDEA: XBRL DOCUMENT
v3.25.2

Balance Sheet Details (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2025
Balance Sheet Details |
Schedule of short-term investments | Short-term investments consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At June 30, 2025 |
​ | ​ | Maturity | ​ | Amortized cost | ​ | Unrealized | ​ | Unrealized | ​ | Estimated |
​ |  | (in years) |  | or cost |  | gains |  | losses |  | fair value |
U.S. treasury securities | ​ | less than 3 | ​ | $ | 142,094 | ​ | $ | 244 | ​ | $ | (35) | ​ | $ | 142,303 | ​
Bank certificates of deposit | ​ | less than 1 | ​ | ​ | 8,605 | ​ | ​ | 3 | ​ | ​ | - | ​ | ​ | 8,608 | ​
Commercial paper | ​ | less than 1 | ​ |  | 1,989 | ​ |  | 1 | ​ |  | - | ​ |  | 1,990 | ​
Corporate notes | ​ | less than 3 | ​ |  | 13,040 | ​ |  | 130 | ​ |  | - | ​ |  | 13,170 | ​
Asset-backed securities | ​ | less than 1 | ​ |  | 4,887 | ​ |  | 1 | ​ |  | (1) | ​ |  | 4,887 | ​
Municipal bonds | ​ | less than 1 | ​ | ​ | 3,010 | ​ | ​ | 5 | ​ | ​ | - | ​ | ​ | 3,015 | ​
Total | ​ | ​ | ​ | $ | 173,625 | ​ | $ | 384 | ​ | $ | (36) | ​ | $ | 173,973 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | At December 31, 2024 |
​ | ​ | Maturity | ​ | Amortized cost | ​ | Unrealized | ​ | Unrealized | ​ | Estimated |
​ |  | (in years) |  | or cost |  | gains |  | losses |  | fair value |
U.S. treasury securities | ​ | less than 3 | ​ | $ | 115,766 | ​ | $ | 215 | ​ | $ | (90) | ​ | $ | 115,891 | ​
Bank certificates of deposit | ​ | less than 1 | ​ | ​ | 5,620 | ​ | ​ | 3 | ​ | ​ | - | ​ | ​ | 5,623 | ​
Corporate notes | ​ | less than 3 | ​ |  | 16,852 | ​ |  | 88 | ​ |  | (2) | ​ |  | 16,938 | ​
Asset-backed securities | ​ | less than 2 | ​ |  | 7,824 | ​ |  | 15 | ​ |  | (20) | ​ |  | 7,819 | ​
Municipal bonds | ​ | less than 1 | ​ | ​ | 3,010 | ​ | ​ | 8 | ​ | ​ | - | ​ | ​ | 3,018 | ​
Total | ​ | ​ | ​ | $ | 149,072 | ​ | $ | 329 | ​ | $ | (112) | ​ | $ | 149,289 | ​
Schedule of accounts receivable, net | Accounts receivable consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, | ​
​ |  | 2025 |  | 2024 |
Accounts receivable | ​ | $ | 88,126 | ​ | $ | 61,817 | ​
Allowance for credit losses | ​ | ​ | (5,141) | ​ | ​ | (1,073) | ​
​ | ​ | $ | 82,985 | ​ | $ | 60,744 | ​
Schedule of inventory | Inventory consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31, | ​
​ |  | 2025 |  | 2024 |
Finished goods | ​ | $ | 23,909 | ​ | $ | 23,667 | ​
Work in process | ​ | ​ | 17,909 | ​ | ​ | 14,663 | ​
Raw material | ​ | ​ | 22,803 | ​ | ​ | 19,348 | ​
​ | ​ | $ | 64,621 | ​ | $ | 57,678 | ​
Schedule of accrued liabilities | Accrued liabilities consisted of the following (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | June 30, | ​ | December 31,
​ |  | 2025 |  | 2024
Accrued bonuses | ​ | $ | 13,365 | ​ | $ | 22,025
Accrued payroll taxes | ​ | ​ | 4,930 | ​ | ​ | 1,436
Accrued Employee Stock Purchase Plan liability | ​ | ​ | 5,342 | ​ | ​ | 2,842
Accrued sales rebates | ​ | ​ | 12,233 | ​ | ​ | 7,956
Accrued vacation benefits | ​ | ​ | 6,240 | ​ | ​ | 5,530
Other accrued liabilities | ​ | ​ | 23,342 | ​ | ​ | 22,310
​ | ​ | $ | 65,452 | ​ | $ | 62,099
​

X
- Definition No definition. + References No definition available. + Details
Name: | gkos_BalanceSheetDetailsAbstract
Namespace Prefix: | gkos_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAccruedLiabilitiesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(6)(c)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483489/210-10-50-1 + Details
Name: | us-gaap_ScheduleOfInventoryCurrentTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration