Stock-Based Compensation Expense Related to Stock Options, RSUs and PSUs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense	$ 907	$ 1,475	$ 1,703	$ 2,494
Stock Options and Restricted Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense	907	1,475	1,703	2,494
Stock Options and Restricted Stock Units | Continuing Operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense	907	985	1,703	1,504
Stock Options and Restricted Stock Units | Discontinued Operations
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense		490		990
Stock Options and Restricted Stock Units | Cost of revenue
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock-Based Compensation Expense	5	5	10	12
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	32	43	52	77
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	77	443	136	561
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	$ 793	$ 494	$ 1,505	$ 854