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Nature of Business and Summary of Significant Accounting Policies - Other Intangible Assets (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Finite-Lived Intangible Assets |  |
Gross carrying amount | $ 2,195,373 | $ 2,195,373
Accumulated amortization | 333,609 | 142,953
Net Book Value Amount | 1,861,764 | 2,052,420
Amortization expense | 190,654 | 97,975
Estimated future amortization expense |  |
2017 | 191,000 |
2018 | 191,000 |
2019 | 191,000 |
2020 | 191,000 |
2021 | 191,000 |
Thereafter | 906,764 |
Total | $ 1,861,764 | $ 2,052,420
Bond Issue Costs |  |
Finite-Lived Intangible Assets |  |
Remaining lives | 15 years | 15 years
Gross carrying amount | $ 79,373 | $ 79,373
Accumulated amortization | 55,561 | 50,270
Net Book Value Amount | 23,812 | 29,103
Estimated future amortization expense |  |
Total | $ 23,812 | $ 29,103
Customer Relationships |  |
Finite-Lived Intangible Assets |  |
Remaining lives | 9 years | 9 years
Gross carrying amount | $ 1,302,000 | $ 1,302,000
Accumulated amortization | 216,998 | 72,333
Net Book Value Amount | 1,085,002 | 1,229,667
Estimated future amortization expense |  |
Total | $ 1,085,002 | $ 1,229,667
Trade Names |  |
Finite-Lived Intangible Assets |  |
Remaining lives | 20 years | 20 years
Gross carrying amount | $ 814,000 | $ 814,000
Accumulated amortization | 61,050 | 20,350
Net Book Value Amount | 752,950 | 793,650
Estimated future amortization expense |  |
Total | $ 752,950 | $ 793,650

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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