Common Stock (Details) $ / shares in Units, shares in Thousands, $ in Thousands			12 Months Ended
	Aug. 23, 2016 USD ($) $ / shares shares	Apr. 15, 2016	Aug. 31, 2016 USD ($)
Reverse stock split ratio		0.10
Proceeds from Issuance of Common Stock | $	$ 2,885		$ 2,885
Private placement
Common stock sold (in shares) | shares	577
Price per share (dollar per share) | $ / shares	$ 5.00