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SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION (Tables) | 6 Months Ended
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Jul. 31, 2024
SUPPLEMENTAL FINANCIAL STATEMENT INFORMATION |
Schedule of other current assets | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | July 31, | ​ | January 31,
​ | ​ | 2024 |  | 2024
Income tax refunds receivable and prepaid income taxes | ​ | $ | 18,288 | ​ | $ | 18,267
Raw materials inventory | ​ | ​ | 8,214 | ​ | ​ | 9,985
Prepaid expenses | ​ |  | 8,268 | ​ |  | 6,035
Other | ​ | ​ | 14,101 | ​ | ​ | 4,972
Total other current assets | ​ | $ | 48,871 | ​ | $ | 39,259
Schedule of accrued expenses | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | July 31, | ​ | January 31,
​ | ​ | 2024 |  | 2024
Accrued project costs | ​ | $ | 30,747 | ​ | $ | 49,135
Accrued compensation | ​ | ​ | 18,015 | ​ | ​ | 21,206
Lease liabilities | ​ | ​ | 3,696 | ​ | ​ | 2,726
Other | ​ | ​ | 9,240 | ​ | ​ | 8,654
Total accrued expenses | ​ | $ | 61,698 | ​ | $ | 81,721
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