Investments and Fair Value Instruments - Summary of Fair Value of Investments Securities (Detail) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets at Fair Value
Total Assets at Fair Value	$ 18,620	$ 26,842
Money Market Funds [Member]
Assets at Fair Value
Cash equivalents	18,620	26,842
Level 1 [Member]
Assets at Fair Value
Total Assets at Fair Value	18,620	26,842
Level 1 [Member] | Money Market Funds [Member]
Assets at Fair Value
Cash equivalents	18,620	26,842
Level 2 [Member]
Assets at Fair Value
Total Assets at Fair Value	0	0
Level 2 [Member] | Money Market Funds [Member]
Assets at Fair Value
Cash equivalents	0	0
Level 3 [Member]
Assets at Fair Value
Total Assets at Fair Value	0	0
Level 3 [Member] | Money Market Funds [Member]
Assets at Fair Value
Cash equivalents	$ 0	$ 0