Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 24,486	$ 54,771	$ (28,246)	$ 109,540
Federal corporate income tax rate			27.00%
Operating loss carryforwards	0	$ 0	$ 0	$ 0
Valuation allowance	12,198,000		12,198,000		$ 12,452,000
Federal income tax net operating loss carry forward	$ 15,100,000		$ 15,100,000		$ 17,200,000
Net operating loss carry forwards expiration beginning year			2031
Net operating loss carry forwards expiration ending year			2037