Consolidated Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Jun. 30, 2016	3,010,687
Balance at Jun. 30, 2016	$ 3,000	$ 188,569,000	$ (156,262,000)	$ (37,000)	$ 32,273,000		$ 32,273,000
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		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		23,903,000
Issuance of common stock in financing, net of offering costs (in shares)	600,000
Issuance of common stock in financing, net of offering costs	$ 1,000	2,091,000			2,092,000		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		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		204,000
Foreign currency translation				(1,000)	(1,000)		(1,000)
Net loss			(29,095,000)		(29,095,000)		$ (29,095,000)
Exercise of stock options (in shares)							0
Balance (in shares) at Jun. 30, 2017	9,915,868
Balance at Jun. 30, 2017	$ 10,000	216,222,000	(185,357,000)	(38,000)	30,837,000		$ 30,837,000
Stock-based compensation expense, net of stock surrenders (in shares)	52,825
Stock-based compensation expense, net of stock surrenders		239,000			239,000		239,000
Issuance of common stock in financing, net of offering costs (in shares)	898,402
Issuance of common stock in financing, net of offering costs	$ 1,000	2,367,000			2,368,000		2,368,000
Foreign currency translation				(5,000)	(5,000)		(5,000)
Net loss			(2,283,000)		(2,283,000)	(487,000)	(2,770,000)
Fair value of subsidiary commonstock issued in acquisition		2,528,000			2,528,000		2,528,000
Exercise of stock options (in shares)	5,333
Exercise of stock options		15,000			15,000		15,000
Balance (in shares) at Dec. 31, 2017	10,872,428
Balance at Dec. 31, 2017	$ 11,000	221,371,000	(187,640,000)	(43,000)	33,699,000	(487,000)	33,212,000
Stock-based compensation expense, net of stock surrenders (in shares)	416
Stock-based compensation expense, net of stock surrenders		652,000			652,000		652,000
Issuance of common stock in financing, net of offering costs (in shares)	8,084,637
Issuance of common stock in financing, net of offering costs	$ 8,000	6,621,000			6,629,000		6,629,000
Foreign currency translation				30,000	30,000		30,000
Net loss			(39,716,000)		(39,716,000)	(1,224,000)	$ (40,940,000)
Exercise of stock options (in shares)							0
Exercise of warrants (in shares)	2,691,666
Exercise of warrants	$ 3,000	24,000			27,000		$ 27,000
Discount due to beneficial conversion features		7,200,000			7,200,000		7,200,000
Cumulative-effect adjustment from adoption of ASC 606 | Accounting Standards Update 2014-09 [Member]			(79,000)		(79,000)		(79,000)
Balance (in shares) at Dec. 31, 2018	21,649,147
Balance at Dec. 31, 2018	$ 22,000	$ 235,868,000	$ (227,435,000)	$ (13,000)	$ 8,442,000	$ (1,711,000)	$ 6,731,000