Stock-Based Compensation Expense Related to Stock Options, RSUs and PSUs (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense	$ 200
Stock Options and Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		$ 8,730	$ 3,971
Stock Options and Restricted Stock Units | Continuing Operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		3,476	2,069
Stock Options and Restricted Stock Units | Discontinued Operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		5,254	1,902
Stock Options and Restricted Stock Units | Cost of revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		22	35
Stock Options and Restricted Stock Units | Research and Development Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		201	112
Stock Options and Restricted Stock Units | Selling and Marketing Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		848	498
Stock Options and Restricted Stock Units | General and Administrative Expense
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		$ 2,405	$ 1,424