Consolidated Statements of Shareholders' Equity (Unaudited) - 3 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Series A Convertible Preferred Stock	Common Stock	Accumulated Deficit	Total
Balance at Jul. 01, 2016	$ 3,138	$ 233,394	$ (181,507)	$ 55,025
Balance (in shares) at Jul. 01, 2016	445,063	37,783,444
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclass of fair value of warrant liability upon exercise of warrants		$ 5,229		5,229
Exercise of warrants		$ 6,193		6,193
Exercise of warrants (in shares)		2,376,675
Stock based compensation 2013 Stock Incentive Plan		$ 92		92
Stock based compensation 2013 Stock Incentive Plan (in shares)		141,839
Stock based compensation 2014 Stock Option Incentive Plan		$ 48		48
Stock based compensation 2015 Equity Incentive Plan		71		71
Retirement of common stock		$ (31)		(31)
Retirement of common stock (in shares)		(6,533)
Net loss			(2,464)	(2,464)
Balance at Sep. 30, 2016	$ 3,138	$ 244,996	$ (183,971)	$ 64,163
Balance (in shares) at Sep. 30, 2016	445,063	40,295,425