Stockholders’ Equity - Stock warrants (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Dec. 07, 2017	Feb. 03, 2018	Aug. 17, 2017	Jan. 28, 2017	Apr. 05, 2016
Warrants issued to purchase shares of common stock	511,111	977,806	326,695	120,000
Exercise price of warrants	$ 2.25	$ 3.81	$ 4.22	$ 10.00
Shares purchased			947,870
Share Price			$ 4,000		$ 16.89
Initial term	7 years
Fair value of stock warrants	$ 600		$ 700
Participation Interest in term loan	$ 11,500
Jess Ravich, Director and large stockholder
Warrants issued to purchase shares of common stock	195,556		237,834
Shares purchased			473,934
Share Price			$ 2,000
Participation Interest in term loan	$ 4,400
Robert Galvin, Chairman of the Board
Warrants issued to purchase shares of common stock			5,924
Shares purchased			23,697
Share Price			$ 100
Howard Siegel, President, Chief Operating Officer
Shares purchased			23,697
Share Price			$ 100
Cove Street Capital, LLC or its affiliates, Significant Stockholder
Warrants issued to purchase shares of common stock	311,111		59,241
Shares purchased			236,967
Share Price			$ 1,000
Participation Interest in term loan	$ 7,000
Henry Stupp, Chief Executive Officer, Director
Warrants issued to purchase shares of common stock	4,444
Participation Interest in term loan	$ 100
Other Investors
Warrants issued to purchase shares of common stock			23,696
Shares purchased			189,575
Share Price			$ 800
Cerberus Credit Facility
Warrants issued to purchase shares of common stock		511,111
Exercise price of warrants		$ 2.25
Participation Interest in term loan		$ 10,000