Amount of amortization expense attributable to debt issuance costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, after accumulated amortization, of debt discount.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in CCYY-MM-DD format.

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The effective interest rate at the end of the reporting period.

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Revolving Credit Facility - Additional Information (Detail) - USD ($)		3 Months Ended		9 Months Ended
	Feb. 24, 2017	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Line of Credit Facility [Line Items]
Interest expense related to borrowings		$ 106,140	$ 126,507	$ 335,576	$ 361,273
Interest expense related to amortization of discount				70,426	54,775
Revolving credit facility, net		4,934,877		4,934,877		$ 6,763,497
ABL Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility maximum principal amount	$ 20,000,000
Debt instrument maturity date	Feb. 24, 2022
Interest expense related to borrowings		81,644	$ 100,511	247,071	$ 297,870
Debt issuance cost		469,507		469,507
Unamortized portion of debt discount		320,830		320,830
Interest expense related to amortization of discount				70,426
Revolving credit current borrowing facility		11,974,000		11,974,000
Revolving credit facility, net		4,934,877		4,934,877
Unamortized debt issuance cost		$ 320,830		$ 320,830
ABL Facility [Member] \| Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate		6.50%		6.50%
ABL Facility [Member] \| LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument interest rate		4.46%		4.46%
ABL Facility [Member] \| Minimum [Member] \| Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	1.00%
ABL Facility [Member] \| Minimum [Member] \| LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.00%
ABL Facility [Member] \| Maximum [Member] \| Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	1.50%
ABL Facility [Member] \| Maximum [Member] \| LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.50%
Equipment Loan Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility maximum principal amount	$ 2,000,000
Debt instrument maturity date	Feb. 24, 2022
Revolving credit facility, net		$ 0		$ 0
Equipment Loan Facility [Member] \| Base Rate [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	2.00%
Equipment Loan Facility [Member] \| LIBOR [Member]
Line of Credit Facility [Line Items]
Debt instrument, margin on variable rate	3.00%