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Mortgage and Loans Payable - Senior Convertible Notes - Additional Note - Additional Information (Detail) - USD ($) | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014 | Jan. 02, 2013 | May. 10, 2012
Debt Instrument [Line Items] |  |  |  |
Original principal amount |  |  |  | $ 8,000,000
Common stock issued under warrant terms | 434,027 |  |  |
Additional Note [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Original principal amount |  |  |  | $ 8,000,000
Common stock issued under warrant terms | 1,562,500 |  |  |
Interest rate, stated percentage |  |  |  | 9.00%
Debt instrument, amortization payment description | The conversion rate applicable to any amortization payment made in shares of our common stock was the lower of (a) the Conversion Price and (b) a price equal to 85.0% of the average for a ten-day period immediately prior to the applicable amortization date of the volume-weighted average price of our shares of common stock. |  |  |
Volume-weighted average price, percentage | 85.00% |  |  |
Conversion price applicable period | 10 days |  |  |
Initial conversion price |  |  | $ 3.17 | $ 3.74
Maximum percentage of cash flow effect on present value basis |  |  | 10.00% |
Percentage of carrying value of additional note to determine change in fair value of embedded conversion option |  |  | 10.00% |
Principal amount of loan, paid in cash |  | $ 1,739,130 |  |
Principal amount of loan, outstanding |  | $ 2,347,826 |  |

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- Definition Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + Details
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