The cash inflow 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.

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=66902209&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

Name:	us-gaap_ProceedsFromLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Subsequent Event (Details) - Wells Fargo Bank, National Association - USD ($) $ in Thousands						6 Months Ended
	Jul. 31, 2017	Jul. 07, 2017	Apr. 03, 2017	Dec. 02, 2016	Jan. 05, 2016	Jun. 30, 2017
Subsequent Event [Line Items]
Proceeds from lines of credit						$ 10,000
Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit						$ 10,000
Line of Credit \| Revolving Credit Facility
Subsequent Event [Line Items]
Proceeds from lines of credit			$ 10,000	$ 40,000	$ 55,000
Line of Credit \| Revolving Credit Facility \| Subsequent Event
Subsequent Event [Line Items]
Proceeds from lines of credit	$ 12,000	$ 15,000