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Credit Agreements (Details) - Line of Credit - Senior Secured Reserve-Based Credit Facility - Revolving Credit Facility | Apr. 11, 2016 USD ($) | Jun. 30, 2019 USD ($)
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Debt Instrument [Line Items] |  |
Term of debt instrument | 3 years |
Maximum borrowing capacity | $ 50,000,000 | $ 40,000,000
Commitment fee percentage | 0.25% |
Maximum total leverage ratio (not more than) | 3 |
Debt service coverage ratio (not less than) | 1.10 |
Minimum consolidated tangible net worth | $ 50,000,000 |
Debt issuance costs | $ 168,972 |
Unamortized debt issuance costs |  | $ 27,045
LIBOR |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 2.75% |
Prime Rate |  |
Debt Instrument [Line Items] |  |
Basis spread on variable rate | 1.00% |

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- Definition Debt Covenant, Maximum Total Leverage Ratio + References No definition available. + Details
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- Definition Debt Service Coverage Ratio + References No definition available. + Details
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- Definition Line of Credit Facility, Covenant Compliance, Minimum Consolidated Tangible Net Worth + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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