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COMPANY AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable and Concentration of Credit Risk (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Concentration Risk [Line Items] |  |  |  |  |
Accounts receivable, net | $ 3,389,511 |  | $ 3,389,511 |  | $ 7,781,824
Contract asset |  |  | $ 0 |  |
Accounts receivable, net |  |  |  |  | 7,800,000
Accounts receivable excluding contract asset |  |  |  |  | 7,600,000
Unbilled receivables |  |  |  |  | 200,000
Financing receivable, percent past due | 1.00% |  | 1.00% |  |
Accounts receivable, noncurrent, threshold period past due | 90 days |  | 90 days |  |
Allowance for doubtful accounts receivable | $ 200,000 |  | $ 200,000 |  | $ 200,000
Bad debt | $ 0 | $ 0 | $ 0 | $ 0 |
Accounts Receivable | Customer Concentration Risk | Customer One |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 10.90% |  | 14.20%
Accounts Receivable | Customer Concentration Risk | Customer Two |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 18.30% |  | 23.50%
Accounts Receivable | Customer Concentration Risk | Customer Three |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 18.80% |  |
Revenue Benchmark | Customer Concentration Risk | Customer One |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 10.30% |  | 10.30%
Revenue Benchmark | Customer Concentration Risk | Customer Two |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 11.60% |  | 15.20%
Revenue Benchmark | Customer Concentration Risk | Customer Three |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 16.20% |  |

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