Consolidated Statements of Stockholders' Equity - USD ($) $ in Millions	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Common stock, shares outstanding (in shares)	28,352,326
Balances (in shares) at Jun. 30, 2013	28,352,326
Balances at Jun. 30, 2013	$ 2.8	$ 118.7	$ (78.8)	$ 25.3	$ 68.0
Exchange differences on translation of foreign operations				1.5	1.5
Net loss			(11.0)		(11.0)
Total Comprehensive loss					(9.5)
Common stock issued (in shares)	6,685,985
Common stock issued	$ 0.7	26.1			26.8
Restricted stock units issued, net (in shares)	62,650
Restricted stock units issued, net		0.2			0.2
Share-based compensation		1.4			1.4
Balances (in shares) at Jun. 30, 2014	35,100,961
Balances at Jun. 30, 2014	$ 3.5	146.4	(89.8)	26.8	86.9
Change in fair value of investments
Common stock, shares outstanding (in shares)	28,352,326
Common stock, shares outstanding (in shares)	35,100,961
Exchange differences on translation of foreign operations				(7.8)	(7.8)
Net loss			(19.1)		(19.1)
Total Comprehensive loss					(27.0)
Common stock issued (in shares)	3,500,000
Common stock issued	$ 0.4	7.1			7.5
Restricted stock units issued, net (in shares)	8,125
Share-based compensation		2.1			$ 2.1
Balances (in shares) at Jun. 30, 2015	38,609,086				38,609,086
Balances at Jun. 30, 2015	$ 3.9	155.6	(108.9)	18.9	$ 69.5
Change in fair value of investments				(0.1)	$ (0.1)
Common stock, shares outstanding (in shares)	35,100,961				38,609,086
Common stock, shares outstanding (in shares)	38,609,086				38,609,086
Exchange differences on translation of foreign operations
Net loss			(25.4)		(25.4)
Total Comprehensive loss					(25.3)
Restricted stock units issued, net (in shares)	31,401
Share-based compensation		2.0			$ 2.0
Balances (in shares) at Jun. 30, 2016	38,640,487				38,640,487
Balances at Jun. 30, 2016	$ 3.9	$ 157.6	$ (134.3)	19.0	$ 46.2
Change in fair value of investments				$ 0.1	$ 0.1
Common stock, shares outstanding (in shares)	38,609,086				38,640,487
Common stock, shares outstanding (in shares)	38,640,487				38,640,487