Subsequent Events - Financial Terms Of Investor Relationships (Details) - Subsequent Event $ in Thousands	Aug. 11, 2017 USD ($) shares
Jess Ravich, Director
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	473,934
No. of Shares Subject to Warrant Issued in Concurrent Financing | shares	237,834
Aggregate Purchase Price of Shares Purchased in Concurrent Financing	$ 2,000
Aggregate Purchase Price of Shares That May Be Purchased in Committed Financings	4,015
Aggregate Purchase Price of all Shares	$ 6,015
Robert Galvin, Chairman of the Board
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	23,697
No. of Shares Subject to Warrant Issued in Concurrent Financing | shares	5,924
Aggregate Purchase Price of Shares Purchased in Concurrent Financing	$ 100
Aggregate Purchase Price of Shares That May Be Purchased in Committed Financings	100
Aggregate Purchase Price of all Shares	$ 200
Howard Siegel, President, Chief Operating Officer
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	23,697
Aggregate Purchase Price of Shares Purchased in Concurrent Financing	$ 100
Aggregate Purchase Price of all Shares	$ 100
Cove Street Capital, LLC, Significant Stockholder
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	236,967
No. of Shares Subject to Warrant Issued in Concurrent Financing | shares	59,241
Aggregate Purchase Price of Shares Purchased in Concurrent Financing	$ 1,000
Aggregate Purchase Price of Shares That May Be Purchased in Committed Financings	1,000
Aggregate Purchase Price of all Shares	$ 2,000
Other Investors
Subsequent Event [Line Items]
Number of shares issued and purchased during the period | shares	189,575
No. of Shares Subject to Warrant Issued in Concurrent Financing | shares	23,696
Aggregate Purchase Price of Shares Purchased in Concurrent Financing	$ 800
Aggregate Purchase Price of Shares That May Be Purchased in Committed Financings	400
Aggregate Purchase Price of all Shares	$ 1,200