REVENUE RECOGNITION - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Disaggregation of Revenue [Line Items]
Total revenue	$ 55,198	$ 51,444	$ 150,685	$ 118,028
Security Solutions
Disaggregation of Revenue [Line Items]
Total revenue	54,184	46,478	146,816	104,770
Secure Networks
Disaggregation of Revenue [Line Items]
Total revenue	1,014	4,966	3,869	13,258
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total revenue	$ 55,198	$ 51,444	$ 150,685	$ 118,028
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	$ 44,633	$ 39,409	$ 119,538	$ 84,560
Concentration risk, percentage	81.00%	77.00%	79.00%	71.00%
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk | Time-and-materials
Disaggregation of Revenue [Line Items]
Total revenue	$ 8,865	$ 9,499	$ 26,207	$ 26,789
Concentration risk, percentage	16.00%	18.00%	18.00%	23.00%
Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk | Cost plus fixed fee
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,700	$ 2,536	$ 4,940	$ 6,679
Concentration risk, percentage	3.00%	5.00%	3.00%	6.00%
Federal | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total revenue	$ 51,474	$ 47,296	$ 139,615	$ 107,268
Concentration risk, percentage	93.00%	92.00%	93.00%	91.00%
Federal | Revenue from Contract with Customer, Segment Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total revenue	$ 51,474	$ 47,296	$ 139,615	$ 107,268
Federal | Revenue from Contract with Customer, Segment Benchmark | Customer Concentration Risk | Security Solutions
Disaggregation of Revenue [Line Items]
Total revenue	50,460	42,333	135,746	94,017
Federal | Revenue from Contract with Customer, Segment Benchmark | Customer Concentration Risk | Secure Networks
Disaggregation of Revenue [Line Items]
Total revenue	1,014	4,963	3,869	13,251
State, local, and commercial | Revenue from Contract with Customer, Product and Service Benchmark | Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Total revenue	$ 3,724	$ 4,148	$ 11,070	$ 10,760
Concentration risk, percentage	7.00%	8.00%	7.00%	9.00%