Debt Conversion, Converted Instrument, Conversion Price Premium, Percent

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- Definition

Debt Instrument, Discount, Percent

+ References

No definition available.

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- Definition

Debt Issuance Costs, Allocated to Equity

+ References

No definition available.

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- Definition

Line of Credit Facility, Collateral, Equity Interests in Subsidiary, Percent

+ References

No definition available.

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- Definition

Adjustment to additional paid in capital resulting from the recognition of convertible debt instruments as two separate components - a debt component and an equity component. This bifurcation may result in a basis difference associated with the liability component that represents a temporary difference for purposes of applying accounting for income taxes. The initial recognition of deferred taxes for the tax effect of that temporary difference is as an adjustment to additional paid in capital.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 25
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=51819886&loc=SL6014347-161799

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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.

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- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870

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- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644

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-Name Accounting Standards Codification
-Topic 210
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-Section S99
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-Subparagraph (SX 210.5-02.22(a)(5))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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- Definition

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

+ References

+ 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.

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- Definition

Amount, after accumulated amortization, of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-SubTopic 30
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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- Definition

Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
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- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

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- Definition

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.

+ References

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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

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- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

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- Definition

The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585

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Debt and Credit Facilities (Details Textual)	3 Months Ended		9 Months Ended	24 Months Ended
Debt and Credit Facilities (Details Textual)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 15, 2022 D	Oct. 11, 2017 USD ($)	Sep. 25, 2017 USD ($) $ / shares	Dec. 31, 2016 USD ($)
Convertible Senior Notes due 2022
Debt Instrument [Line Items]
Convertible Senior Notes due 2022, aggregate pricncipal		$ 40,000,000	$ 40,000,000			$ 40,000,000
Interest rate		5.50%	5.50%			5.50%
Proceeds received		$ 37,300,000
Conversion rate		157.5101
Conversion price \| $ / shares						$ 6.35
Conversion premium, percent						27.00%
Initial purchaser's discount		$ 2,200,000	$ 2,200,000
Initial purchaser's discount, percent		5.50%	5.50%
Discount rate		12.00%
Amount over estimated fair value of the liability component		$ 7,400,000
Transaction costs		500,000	$ 500,000
Transaction costs allocated to equity		$ 100,000
Effective interest rate		12.20%	12.20%
Vehicle Financing Agreement
Debt Instrument [Line Items]
Borrowings outstanding under vehicle financing agreements		$ 124,000	$ 124,000				$ 83,000
Vehicle Financing Agreement \| Minimum
Debt Instrument [Line Items]
Interest rate		0.90%	0.90%
Vehicle Financing Agreement \| Maximum
Debt Instrument [Line Items]
Interest rate		1.90%	1.90%
Repayment period			3 years
Revolving Credit Facility \| East West Bank
Debt Instrument [Line Items]
Revolving line of credit		$ 25,000,000	$ 25,000,000
Amount available under revolving line of credit		$ 12,000,000	$ 12,000,000
Percentage of equity interests pledged		100.00%	100.00%
Annual commitment fee amount			$ 125,000
Revolving Credit Facility \| East West Bank \| Minimum
Debt Instrument [Line Items]
Unused commitment fee percentage			0.30%
Revolving Credit Facility \| East West Bank \| Maximum
Debt Instrument [Line Items]
Unused commitment fee percentage			0.50%
Revolving Credit Facility \| East West Bank \| Prime Rate \| Minimum
Debt Instrument [Line Items]
Credit facility interest on borrowings, percentage added to rate			0.00%
Revolving Credit Facility \| East West Bank \| Prime Rate \| Maximum
Debt Instrument [Line Items]
Credit facility interest on borrowings, percentage added to rate			0.50%
Revolving Credit Facility \| East West Bank \| LIBOR \| Minimum
Debt Instrument [Line Items]
Credit facility interest on borrowings, percentage added to rate			2.75%
Revolving Credit Facility \| East West Bank \| LIBOR \| Maximum
Debt Instrument [Line Items]
Credit facility interest on borrowings, percentage added to rate			3.25%
Subsequent Event \| Convertible Senior Notes due 2022
Debt Instrument [Line Items]
Convertible Senior Notes due 2022, aggregate pricncipal					$ 6,000,000
Proceeds received	$ 5,700,000
Scenario, Forecast \| Convertible Senior Notes due 2022
Debt Instrument [Line Items]
Convertible price threshold percentage				130.00%
Convertible threshold trading days \| D				20