Subsequent Events (Silicon Valley and ABL Credit Agreements) (Details) - Subsequent Event	Jan. 03, 2018 USD ($)
Revolving Credit Facility \| Silicon Valley Bank
Subsequent Event [Line Items]
Repayments of lines of credit	$ 30,000,000
Revolving Credit Facility \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity	20,000,000.0
Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Line of credit facility, maximum borrowing capacity	1,500,000.0
Borrowing base covenant	$ 20,000,000.0
Interest rate during period	1.00%
Additional interest rate, in default	2.00%
Line of credit facility, unused capacity, commitment fee percentage	0.375%
LIBOR \| Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Debt instrument, basis spread on variable rate	2.00%
On Or Prior to January 3 2019 \| Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Cancellation fee rate	2.00%
On Or After to January 3 2019 and Prior to January 3 2020 \| Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Cancellation fee rate	1.00%
Through June 30 2018 \| Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Restricted cash	$ 4,000,000
On Or After July 1 2018 \| Letter of Credit \| Marquette Business Credit LLC
Subsequent Event [Line Items]
Restricted cash	$ 6,000,000

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- Definition

Line of Credit Facility, Borrowing Base Covenant

+ References

No definition available.

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- Definition

Line of Credit Facility, Cancellation Fee Percentage

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No definition available.

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- Definition

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

+ References

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The effective interest rate during the reporting period.

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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 cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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- Definition

Amount of cash restricted as to withdrawal or usage. 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

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