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The amount in which the lender has invested.

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The maximum amount in which the lender has right to convert the invested amount into shares.

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The maximum amount in which lender has a right to invest subject to Company approval and consent.

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The minimum amount which is to be get in equity financing to defer the principal payments.

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The fair value of warrants issued in connection with Debt Instrument.

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Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Amount of the required periodic payments applied to principal.

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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

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

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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.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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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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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Long Term Debt (Details) - USD ($)					1 Months Ended				12 Months Ended
Long Term Debt (Details) - USD ($)	Feb. 01, 2018	Dec. 01, 2015	Mar. 04, 2015	Apr. 14, 2014	Aug. 31, 2018	Jul. 31, 2018	Jun. 30, 2018	Jan. 31, 2016	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Oct. 31, 2018	Oct. 02, 2018	Sep. 03, 2018	Apr. 01, 2018	Jul. 31, 2017	Mar. 31, 2017	Jul. 31, 2016	Apr. 30, 2016
Long Term Debt
Amount borrowed under the loan facility									$ 7,763,000
Principal payment on loan					$ 0	$ 0	$ 0
Total facility available													$ 1,000,000
Non-cash interest expense									200,000	$ 200,000	$ 400,000
Unamortized debt issuance costs									100,000
Long Term Debt									7,623,000	$ 4,346,000
Loan agreement
Long Term Debt
Fair value of warrants issued				$ 100,000
Debt issuance costs				100,000
Amount of investment by lender				$ 1,000,000
Additional amounts available to borrow									0
Loan agreement \| Minimum
Long Term Debt
Interest rate (as a percent)				8.00%
Loan agreement \| Maximum
Long Term Debt
Maximum amount to invest				$ 1,000,000
Conversion amount				$ 1,000,000
Amendment 1 to loan agreement
Long Term Debt
Fair value of warrants issued			$ 100,000
Amount borrowed under the loan facility			5,000,000
Principal payment on loan		$ 300,000
Term charge			200,000
Amendment 1 to loan agreement \| Minimum
Long Term Debt
Amount to be received under equity financing			$ 10,000,000
Amendment 2 to loan agreement
Long Term Debt
Fair value of warrants issued								$ 100,000
Amount borrowed under the loan facility								5,000,000										$ 3,000,000
Term charge								100,000
Total facility available								$ 15,000,000											$ 13,000,000
Remaining facility expired unexercised																			$ 2,000,000
Amendment 3 to loan agreement
Long Term Debt
Amount borrowed under the loan facility														$ 0			$ 5,000,000
Term charge	$ 50,000
Total facility available															$ 23,000,000		18,000,000
Amendment 4 to loan agreement \| Maximum
Long Term Debt
Interest cap																10.00%
Amendment 5 to loan agreement
Long Term Debt
Principal payment on loan									1,400,000
Term charge					80,000				$ 500,000
Cost incurred upon execution					$ 50,000
Amendment 6 to loan agreement
Long Term Debt
Certificate of deposit associated with the lease												$ 1,000,000
Term loan
Long Term Debt
Amount borrowed under the loan facility																	$ 5,000,000
Prime rate \| Loan agreement
Long Term Debt
Margin on variable interest rate (as a percent)				5.25%