Subsequent Event (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	May 30, 2017	Apr. 29, 2017	Apr. 30, 2016
Subsequent Event [Line Items]
Proceeds from issuance of common stock		$ 132	$ 0
Subsequent Event [Member]
Subsequent Event [Line Items]
Shares sold	4,008,273
Shares Issued, Price Per Share	$ 1.12
Proceeds from issuance of common stock	$ 4,500
Directors and Executive Officers [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Shares Issued, Price Per Share	$ 1.15