Debt (Narrative) (Details) $ in Thousands |
6 Months Ended | ||||
|---|---|---|---|---|---|
|
Mar. 14, 2017
USD ($)
|
Jun. 30, 2018
item
|
Dec. 31, 2017
USD ($)
|
Jun. 29, 2016
USD ($)
|
Jun. 28, 2016
USD ($)
|
|
| Debt Instrument [Line Items] | |||||
| Credit facility borrowing base | $ 20,000 | ||||
| Deferred financing costs | $ 200 | ||||
| Commitment fee percentage | 2.30% | ||||
| Additional Term Loan [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument, additional borrowing available | $ 5,000 | ||||
| Borrowings | $ 4,200 | ||||
| Number of quarterly principal installments | item | 5 | ||||
| Commitment fees, amount | $ 0 | ||||
| Term Loan [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Debt instrument maximum borrowing capacity | $ 15,000 | ||||
| Debt instrument interest rate spread | 5.75% |
| X | ||||||||||
- Definition Debt Instrument Additional Borrowing Available No definition available.
|
| X | ||||||||||
- Definition Debt Instrument Maximum Borrowing Capacity No definition available.
|
| X | ||||||||||
- Definition Number Of Quarterly Principal Installments No definition available.
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- 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. No definition available.
|
| X | ||||||||||
- Definition Amount of commitment fees for the unused borrowing capacity under the long-term financing arrangement that is available to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. No definition available.
|
| X | ||||||||||
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|