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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 10
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Additional Balance Sheet Information Accounts receivable, net (Details) - USD ($) $ in Thousands		1 Months Ended	6 Months Ended
	May 26, 2015	Jan. 31, 2016	Sep. 30, 2017	Nov. 02, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Accounts Receivable, Net, Current			$ 14,742		$ 15,598
Allowance for Doubtful Accounts Receivable			698		$ 509
Bankruptcy Claims, Amount of Claims Filed	$ 700	$ 200	$ 700
Subsequent Event [Member]
Subsequent Event [Line Items]
Bankruptcy Claims, Amount of Claims Settled				$ 1,000