Subsequent Events (Details) $ / shares in Units, $ in Thousands	Aug. 11, 2017 USD ($) $ / shares shares	Oct. 31, 2017	Jul. 31, 2017	Jun. 27, 2017	Apr. 29, 2017 USD ($)	Apr. 05, 2016 $ / shares
Subsequent Event [Line Items]
Per share purchase price | $ / shares						$ 16.89
Ravich loan
Subsequent Event [Line Items]
Borrowings outstanding					$ 1,500
Subsequent Event | Private placement financing
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	947,870
Per share purchase price | $ / shares	$ 4.22
Maximum Aggregate Value Of Commited Financing	$ 5,500
Net cash proceeds	$ 4,000
Minimum per share purchase price | $ / shares	$ 4.22
Percentage of average closing price of the Company’s common stock for the 20 days prior to the date of the Company’s notification	90.00%
Period for 90% of the average closing price of the Company’s common stock	20 days
Maximum percentage of aggregate number of shares issuable in the Concurrent Financing and the Committed Financings	19.90%
Warrants issued to purchase shares of common stock | shares	326,695
Exercise price of warrants | $ / shares	$ 4.22
Warrants exercisable term	7 years
Subsequent Event | Cerberus Credit Facility
Subsequent Event [Line Items]
Leverage Ratio				3.00
Amended Leverage Ratio		10.50	16.00
Fixed Charge Ratio				1.50
Amended Charge Ratio		0.35	0.25
Subsequent Event | Cerberus Credit Facility | Minimum
Subsequent Event [Line Items]
Liquidity Covenant	$ 3,000
Subsequent Event | Cerberus Credit Facility | Maximum
Subsequent Event [Line Items]
Required Equity Financing	$ 5,500