The period end date for which the debt interest only period expires.

No definition available.

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- Definition

Loans Payable, Final Fee Obligation

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No definition available.

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Maximum borrowing capacity under the debt 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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No definition available.

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- Definition

Amount of amortization expense attributable to debt issuance costs.

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- Definition

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

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Description of a fee associated with the debt instrument, including a commitment fee on unborrowed portions of a lender's total contractual commitment.

+ References

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- Definition

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

+ References

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- Definition

Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

+ References

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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.

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- Definition

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

+ References

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- Definition

Amount, after accumulated amortization, of debt discount (premium).

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- Definition

Amount of commitment fees for the unused borrowing capacity under the long-term financing arrangement that is available to the entity.

+ References

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- Definition

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

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions).

+ 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.

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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

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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- Definition

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

+ References

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- Definition

Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Loan payable Schedule Term Loans (Details) - USD ($)	12 Months Ended
Loan payable Schedule Term Loans (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Debt Instrument, Fee	20000
Long-term Debt, Current Maturities	$ 0	$ (7,927,000)
Long-term Debt, Excluding Current Maturities	36,042,000	20,099,000
Restricted cash	758,000	758,000
Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 5,000,000
Line of Credit Facility, Interest Rate Description	(a) the greater of 1.25% per annum or a base rate as determined by a three-month LIBOR-based formula, plus (b) an applicable margin between 2.95% and 3.95%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.75%
Debt Instrument, Unused Borrowing Capacity, Fee	$ 35,000	35,000	$ 42,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of Credit Outstanding, Amount	758,000
Restricted cash	758,000
Term Loans
Debt Instrument [Line Items]
Term Loans, Debt Facility, Maximum Borrowing Capacity	$ 35,000,000
Debt Instrument, Interest Rate Terms	a) the greater of 1.00% or the 3-year treasury rate in effect at the time of funding, plus (b) an applicable margin between 4.95% and 5.90% per annum.
Long-term Debt, Gross	$ 42,762,000
Loans Payable, Final Fee Obligation	3,288,000	2,429,000
Debt Instrument, Annual Principal Payment	0	(7,762,000)
Debt Instrument, Unamortized Discount (Premium), Net	(2,245,000)
Long-term Debt	36,042,000	28,026,000
Long-term Debt, Current Maturities	0	(7,927,000)
Long-term Debt, Excluding Current Maturities	36,042,000	20,099,000
Interest Expense, Debt	2,018,000	1,820,000	1,184,000
Amortization of Debt Issuance Costs	$ 938,000	1,132,000	$ 298,000
Term Loans \| Interest-only period
Debt Instrument [Line Items]
Debt Interest only Period End	Jan. 01, 2020
Term Loans \| Final Maturity
Debt Instrument [Line Items]
Debt Instrument, Maturity Date	Jan. 01, 2021
Unamortized issuance cost [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount (Premium), Net		(1,641,000)
Term Loan A
Debt Instrument [Line Items]
Long-term Debt	$ 7,619,000	10,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.90%
Term Loan B
Debt Instrument [Line Items]
Long-term Debt	$ 7,619,000	10,000,000
Debt Instrument, Interest Rate, Stated Percentage	6.90%
Term Loan C
Debt Instrument [Line Items]
Long-term Debt	$ 12,000,000	15,000,000
Debt Instrument, Interest Rate, Stated Percentage	7.40%
Term Loan D [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 663,000	0
Term Loan D [Domain]
Debt Instrument [Line Items]
Long-term Debt	663,000
Term Loan E [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 7,098,000	$ 0