XML 39 R27.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Note 6 - Inventories (Tables) | 3 Months Ended
--- | ---
Dec. 31, 2024
Notes Tables |
Schedule of Inventory, Current and Noncurrent [Table Text Block] |
|  | December 31, 2024 |  |  | September 30, 2024 |
Finished goods |  | $ | 18,692 |  |  | $ | 18,099 |
Work in process |  |  | 5,506 |  |  |  | 3,626 |
Raw materials |  |  | 31,975 |  |  |  | 30,941 |
Obsolescence reserve (net realizable value adjustment) |  |  | (9,510 | ) |  |  | (8,413 | )
Total |  |  | 46,663 |  |  |  | 44,253 |
Less current portion |  |  | 27,921 |  |  |  | 26,222 |
Non-current portion |  | $ | 18,742 |  |  | $ | 18,031 |

X
- Definition Tabular disclosure of inventories, current and noncurrent. + References No definition available. + Details
Name: | geos_ScheduleOfInventoryCurrentAndNoncurrentTableTextBlock
Namespace Prefix: | geos_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration