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REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 23,783 | $ 36,186 | $ 81,900 | $ 104,319
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 23,783 | $ 36,186 | $ 81,900 | $ 104,319
Concentration risk, percentage | 100.00% | 100.00% | 100.00% | 100.00%
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk | Firm fixed-price |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 18,293 | $ 27,809 | $ 63,308 | $ 80,116
Concentration risk, percentage | 77.00% | 77.00% | 77.00% | 77.00%
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk | Time-and-materials |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 3,045 | $ 3,504 | $ 9,204 | $ 10,608
Concentration risk, percentage | 13.00% | 10.00% | 11.00% | 10.00%
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk | Cost plus fixed fee |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 2,445 | $ 4,873 | $ 9,388 | $ 13,595
Concentration risk, percentage | 10.00% | 13.00% | 12.00% | 13.00%
Federal | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 20,607 | $ 32,955 | $ 72,046 | $ 93,456
Concentration risk, percentage | 87.00% | 91.00% | 88.00% | 90.00%
State, local, and commercial | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Total revenue | $ 3,176 | $ 3,231 | $ 9,854 | $ 10,863
Concentration risk, percentage | 13.00% | 9.00% | 12.00% | 10.00%
U.S. Department of Defense ("DoD") | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Concentration risk, percentage | 46.00% | 61.00% | 53.00% | 65.00%
U.S. Department of Homeland Security ("DHS") | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Concentration risk, percentage | 16.00% | 6.00% | 15.00% | 3.00%

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