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

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Subsequent Events (Details) $ in Thousands	May 10, 2018 USD ($) advance	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Loan Payable
Subsequent Event [Line Items]
Deb face amount		$ 8,250	$ 8,500
Subsequent Event \| Loan Payable \| Working Capital Overadvance \| CNH
Subsequent Event [Line Items]
Deb face amount	$ 300
Subsequent Event \| Loan Payable \| May 2018 Term Loan \| SWK
Subsequent Event [Line Items]
Deb face amount	$ 1,500
Number of debt advances \| advance	3
Maximum percentage of actual over budgeted expenses	15.00%