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Income Taxes - Narrative (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosures [Line Items] |  |  |
Income tax payments | $ 2,419,009 | $ 2,576,515 | $ 991,888
Continuing Operations |  |  |
Income Tax Disclosures [Line Items] |  |  |
Decrease in valuation allowance during the period | 321,867 |  |
State Jurisdiction |  |  |
Income Tax Disclosures [Line Items] |  |  |
Net operating loss carryforwards | 46,511,086 | 49,711,027 |
Portion of NOL subject to valuation allowance | 41,742,152 |  |
Valuation allowance for net operating loss carrryforwards | 1,689,246 | 2,064,674 |
Valuation Allowance, Other Deferred Tax Assets |  |  |
Income Tax Disclosures [Line Items] |  |  |
Valuation allowance for net operating loss carrryforwards | $ 76,747 | $ 23,186 |

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- Definition The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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