Number of notes.

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- Definition

Number of notes drew down.

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- Definition

Amount of the total principal payments made during the annual reporting period.

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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.

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No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Debt - Additional Information (Details)	3 Months Ended		6 Months Ended
Debt - Additional Information (Details)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) Note	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Short-term debt	$ 476,567		$ 476,567		$ 1,010,961
Interest expense, debt	54,533	$ 53,813	112,379	$ 83,657
Due in 2018 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	300,000		300,000
Due in 2019 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	300,000		300,000
Due in 2020 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	300,000		300,000
Due in 2021 [Member]
Debt Instrument [Line Items]
Debt instrument, annual principal payment	300,000		300,000
MGHIF Financing Agreement [Member]
Debt Instrument [Line Items]
Short-term debt	167,000		167,000		1,000,000
Long-term debt, outstanding	826,000		826,000
Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Short-term debt	$ 310,000		$ 310,000		$ 100,000
Bridge Financing Notes [Member]
Debt Instrument [Line Items]
Number of notes \| Note			3
Number of notes drew down \| Note			2