SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands			12 Months Ended
	Sep. 01, 2023	Aug. 31, 2023	Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)
Business Acquisition [Line Items]
Number of reportable segments | segment			2
Number of operating segments | segment			2
Capitalized software development costs			$ 170	$ 230
Amortized and deducted over period			15 years
Advertising expense			$ 700	800
Award vesting period	1 year	5 years
Impairment loss on intangible assets			$ 6,373	487
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]			Cost of Goods and Services Sold, Selling, general and administrative expenses, Research and development expenses
2024 Restructuring Plan
Business Acquisition [Line Items]
Restructuring charges incurred to date			$ 1,300
Impairment loss on intangible assets			6,373	0
2024 Restructuring Plan | Security Solutions Segment
Business Acquisition [Line Items]
Restructuring charges incurred to date			200
2024 Restructuring Plan | Secure Networks Segment
Business Acquisition [Line Items]
Restructuring charges incurred to date			$ 100
Severance and related benefit costs | 2022 Restructuring Plan
Business Acquisition [Line Items]
Restructuring charges incurred to date				$ 3,900
Stock Options
Business Acquisition [Line Items]
Award vesting period			1 year
Stock Options | 2016 Omnibus Long-Term Incentive Plan
Business Acquisition [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period			10 years
Minimum
Business Acquisition [Line Items]
Amortization period			2 years
Minimum | Furniture and Fixtures
Business Acquisition [Line Items]
Property, plant and equipment, useful life			3 years
Maximum
Business Acquisition [Line Items]
Amortization period			5 years
Maximum | Service-Based RSU
Business Acquisition [Line Items]
Award vesting period			3 years
Maximum | Furniture and Fixtures
Business Acquisition [Line Items]
Property, plant and equipment, useful life			5 years