Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Taxes [Line Items]
Income tax provision	$ 115,000	$ 0	$ 100,000
Increase in valuation allowance	2,900,000
Uncertain tax positions	0
Increase decrease in uncertain tax position reasonably possible	0
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 95,900,000
Net operating loss carryforwards, limitations on use	Approximately, $40.0 million of these carryforwards expire in varying amounts starting in 2035 to 2037, if not utilized and are available to offset 100% of future taxable income.  The remaining $55.9 million may be carried forward indefinitely but are only available to offset 80% of future taxable income.  The Company has federal research and development tax credits of $1.8 million which expire in varying amounts starting in 2035 to 2040.
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Earliest open tax year	2017 2018 2019 2020 2021
Minimum [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards expiration date	2035
Maximum [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards expiration date	2037
Expire in 2035 to 2037 [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 40,000,000.0
Maximum percentage of taxable income limited to offset by net operating loss carryforwads.	100.00%
Indefinite [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 55,900,000
Maximum percentage of taxable income limited to offset by net operating loss carryforwads.	80.00%
Expire In 2035 to 2040 [Member] | Research And Development [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards	$ 1,800,000
Expire In 2035 to 2040 [Member] | Research And Development [Member] | Minimum [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards expiration date	2035
Expire In 2035 to 2040 [Member] | Research And Development [Member] | Maximum [Member] | Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards expiration date	2040
M&F TTP Holdings LLC [Member]
Income Taxes [Line Items]
Amount of cash savings percentage	85.00%