Accrued and Other Liabilities - Additional Information (Detail)	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2012 USD ($)	Mar. 31, 2016 USD ($) ft²	Dec. 31, 2015 USD ($) a	Feb. 18, 2016 a	Dec. 31, 2014 USD ($)	Apr. 22, 2014 USD ($)
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	$ 1,600,000
Lease term expiration year	2022
Tenant improvements credited at closing balance		760,060	$ 812,493
Environmental reserve accrued					$ 110,000
Additional environmental reserve accrued		500,000
Environmental remediation cost		$ 131,000
Costs affiliated with wetlands mitigation permits			$ 187,500
Area of a real estate property		1,700,000	160	0.37
Environmental Reserve and Restoration Cost Accrual		$ 2,366,921	$ 2,405,635
Lowes [Member]
Accrued Liabilities [Line Items]
Tenant improvements credited at closing balance						$ 651,000
Tenant improvements		100,000
Unfunded [Member]
Accrued Liabilities [Line Items]
Tenant improvements		551,000
Minimum [Member]
Accrued Liabilities [Line Items]
Base rent payments per year	$ 250,000
Estimated additional environmental remediation costs		500,000
Environmental Reserve and Restoration Cost Accrual			$ 1,700,000
Maximum [Member]
Accrued Liabilities [Line Items]
Base rent payments per year	$ 500,000
Estimated additional environmental remediation costs		$ 1,000,000