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Leases - Narrative (Details) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2016 USD ($) renewal_option | Dec. 31, 2016 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Jun. 29, 2018 renewal_option
Leases [Abstract] |  |  |  |  |  |
Gross proceeds from sale of properties accounted for as sale leaseback transactions | $ 22,000,000 |  |  |  |  |
Net book value of real estate properties sold | 17,769,883 |  |  |  |  |
Loss recognized on sale of properties accounted for as sale leaseback transactions | 2,455,347 |  | $ (334,273) | $ (334,273) | $ 2,371,778 |
Gross deferred gain recognized on properties accounted for as sale leaseback transactions | $ 6,685,464 |  |  |  |  |
Initial lease term for properties under sale leaseback transactions | P20Y |  |  |  |  |
Current period deferred gain recognized on properties accounted for as sale leaseback transactions |  | $ 83,568 | 334,273 | 334,273 | 83,569 |
Net proceeds from sale of properties accounted for as sale leaseback transactions | $ 21,925,000 |  |  |  |  |
Number of renewal options under sale leaseback transactions | renewal_option | 2 |  |  |  |  |
Rent escalator for sale leaseback transactions | 1.25 |  |  |  |  |
Sale lease back transaction, maximum rent escalator percentage | 2.00% |  |  |  |  |
Initial term of operating lease |  |  |  |  |  | 20 years
Number of renewal options for operating leases | renewal_option |  |  |  |  |  | 2
Number of years in each renewal term for operating leases | 10 years |  |  |  |  | 10 years
Rent escalator under operating leases |  |  |  |  |  | 125.00%
Maximum rent escalator percentage for operating leases |  |  |  |  |  | 2.00%
Operating lease rent expense |  |  | $ 3,994,012 | $ 3,339,600 | $ 1,143,895 |

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- Definition A description of the terms of the lease(s) related to the assets being leased-back in connection with the transaction involving the sale of property to another party and the lease of the property back to the seller. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77913982&loc=d3e50796-112755 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 40 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=77888430&loc=SL77919786-209982 + Details
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