Consolidated Statements of Stockholders' Equity - USD ($)	Series B Warrant [Member] Common Stock [Member]	Series B Warrant [Member] Additional Paid-in Capital [Member]	Series B Warrant [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balance (in shares) at Jun. 30, 2015				2,027,386
Balance at Jun. 30, 2015				$ 2,000	$ 172,579,000	$ (137,674,000)	$ (5,000)	$ 34,902,000
Stock-based compensation expense, net of stock surrenders (in shares)				11,577
Stock-based compensation expense, net of stock surrenders					710,000			710,000
Discount due to beneficial conversion features					7,262,000			7,262,000
Discount due to warrants					4,434,000			4,434,000
Issuance of common shares in financing (in shares)				735,294
Issuance of common shares in financing				$ 1,000	2,463,000			2,464,000
Issuance of common shares for exercise of Series B warrants (in shares)	231,710
Issuance of common shares for exercise of Series B warrants		$ 1,097,000	$ 1,097,000
Common stock issued to directors in lieu of cash compensation (in shares)				4,720
Common stock issued to directors in lieu of cash compensation					24,000			24,000
Foreign currency translation adjustments							(32,000)	(32,000)
Net loss						(18,588,000)		(18,588,000)
Balance at Jun. 30, 2016				$ 3,000	188,569,000	(156,262,000)	(37,000)	32,273,000
Balance (in shares) at Jun. 30, 2016				3,010,687
Stock-based compensation expense, net of stock surrenders (in shares)				125,368
Stock-based compensation expense, net of stock surrenders					1,445,000			1,445,000
Shares issued upon debt conversion (in shares)				6,102,941
Shares issued upon debt conversion				$ 6,000	23,897,000			23,903,000
Issuance of common shares in financing (in shares)				600,000
Issuance of common shares in financing				$ 1,000	2,091,000			2,092,000
Common stock issued to directors in lieu of cash compensation (in shares)				5,463
Common stock issued to directors in lieu of cash compensation					16,000			16,000
Common stock issued to employees for prior year bonus (in shares)				71,409
Common stock issued to employees for prior year bonus					204,000			204,000
Foreign currency translation adjustments							(1,000)	(1,000)
Net loss						(29,095,000)		(29,095,000)
Balance at Jun. 30, 2017				$ 10,000	$ 216,222,000	$ (185,357,000)	$ (38,000)	$ 30,837,000
Balance (in shares) at Jun. 30, 2017				9,915,868