Accrued and Other Liabilities - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 31, 2012	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014	Apr. 22, 2014
Accrued Liabilities [Line Items]
Lease, base rent	$ 250,000
Annual rate adjustment percentage	1.75%
Investments agreed under lease arrangement	$ 200,000
Description of additional rent payable			Company will pay additional rent to the City equal to 5.0% of gross revenues exceeding $5,500,000 and 7.0% of gross revenues exceeding $6,500,000.
Additional rent percentage exceeding $5,500,000 gross revenue	5.00%
Additional rent percentage on exceeding $6,500,000 gross revenue	7.00%
Gross revenue value for additional rent under lease amendment lower limit	$ 5,500,000
Gross revenue value for additional rent under lease amendment upper limit	6,500,000
Rent deferred, no longer due	$ 3,000,000	$ 1,800,000	$ 1,800,000
Lease term expiration year	2022
Tenant improvements credited at closing balance		676,604	676,604	$ 551,250
Tenant improvements		1,200,000	1,200,000
Environmental reserve accrued				$ 110,000
Additional environmental reserve accrued		500,000
Environmental remediation cost			77,000
Lowes [Member]
Accrued Liabilities [Line Items]
Tenant improvements credited at closing balance					$ 651,000
Tenant improvements		100,000	100,000
Unfunded [Member]
Accrued Liabilities [Line Items]
Tenant improvements		$ 551,000	$ 551,000
Minimum [Member]
Accrued Liabilities [Line Items]
Base rent payments per year	$ 250,000
Maximum [Member]
Accrued Liabilities [Line Items]
Base rent payments per year	$ 500,000