Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Income Taxes [Line Items]
Deferred tax asset	$ 4,846,500	$ 5,131,179
Accumulated net operating losses	$ 4,200,000	4,400,000
Loss carryforwards, expired	2028
Deferred tax asset nondeductible accrued expenses	$ 700,000	700,000
TRS Lessee [Member]
Income Taxes [Line Items]
Accumulated net operating losses	$ 4,200,000	$ 4,400,000