| Other Current Assets and Accrued Expenses |
5. Other Current Assets and Accrued Expenses Other current assets consisted of the following as of the dates presented below: | | MARCH 31, | | | DECEMBER 31, | | | | 2025 | | | 2024 | | | | (Unaudited) | | Inventories | | $ | 553,046 | | | $ | 312,429 | | Prepaid project costs | | | 493,637 | | | | 565,999 | | Deferred contract costs | | | 3,301,729 | | | | 2,134,182 | | Prepaid expenses and other assets | | | 858,135 | | | | 758,863 | | | | | | | | | | | Total other current assets | | $ | 5,206,547 | | | $ | 3,771,473 | |
Accrued expenses consisted of the following as of the dates presented below: | | MARCH 31, | | | DECEMBER 31, | | | | 2025 | | | 2024 | | | | (Unaudited) | | | Carrier service costs | | $ | 24,939,210 | | | $ | 25,116,590 | | | Salaries and payroll taxes | | | 2,158,350 | | | | 2,210,150 | | | Inventory purchases, consultants and other costs | | | 3,259,390 | | | | 3,495,405 | | | Other | | | 37,820 | | | | 29,110 | | | | | | | | | | | | | $ | 30,394,770 | | | $ | 30,851,255 | |
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