CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member]		Additional paid in capital [Member]	Accumulated other comprehensive Income (loss) [Member]	Retained earnings (Accumulated Deficit) [Member]	Total	Noncontrolling Interest [Member]	Stockholders Equity
Balance at Jun. 30, 2015	$ 4		$ 287,152	$ (222)	$ (119,990)	$ 166,944		$ 166,944
Balance (in shares) at Jun. 30, 2015	39,297,539
Issuance of Common Stock upon exercise of employee and non-employees stock-based awards		[1]	2,973			2,973		2,973
Issuance of Common Stock upon exercise of employee and non-employee stock options, shares	1,592,383
Equity based compensation expenses to employees and non-employee consultants			9,089			9,089		9,089
Other comprehensive income loss adjustments				493		493		493
Net income					76,609	76,609		76,609
Balance at Jun. 30, 2016	$ 4		299,214	271	(43,381)	256,108		256,108
Balance (in shares) at Jun. 30, 2016	40,889,922
Issuance of Common Stock upon exercise of employee and non-employees stock-based awards		[1]	349			349		349
Issuance of Common Stock upon exercise of employee and non-employee stock options, shares	286,150
Issuance of Common stock under employee stock purchase plan		[1]	935			935		935
Issuance of Common stock under employee stock purchase plan, share	83,319
Equity based compensation expenses to employees and non-employee consultants			6,600			6,600		6,600
Other comprehensive income loss adjustments				(595)		(595)		(595)
Net income					25,381	25,381		25,381
Balance at Dec. 31, 2016	$ 4		307,098	(324)	(18,000)	288,778		288,778
Balance (in shares) at Dec. 31, 2016	41,259,391
Issuance of Common Stock upon exercise of employee and non-employees stock-based awards		[1]	4,854			4,854		4,854
Issuance of Common Stock upon exercise of employee and non-employee stock options, shares	2,368,152
Issuance of Common stock under employee stock purchase plan		[1]	2,386			2,386		2,386
Issuance of Common stock under employee stock purchase plan, share	185,058
Equity based compensation expenses to employees and non-employee consultants			17,564			17,564		17,564
Other comprehensive income loss adjustments				(287)		(287)		(287)
Net income					84,172	84,172		84,172
Balance at Dec. 31, 2017	$ 4		331,902	(611)	66,172	397,467		397,467
Balance (in shares) at Dec. 31, 2017	43,812,601
Cumulative effect of adopting new accounting standard					(3,872)	(3,872)		(3,872)
Issuance of Common Stock upon exercise of employee and non-employees stock-based awards	$ 1		6,333			6,334		6,334
Issuance of Common Stock upon exercise of employee and non-employee stock options, shares	2,122,932
Issuance of Common stock under employee stock purchase plan		[1]	3,687			3,687		3,687
Issuance of Common stock under employee stock purchase plan, share	117,269
Equity based compensation expenses to employees and non-employee consultants			30,618			30,618		30,618
Non-controlling interests related to business combination							22,159	22,159
Purchase of Non-controlling interests			(746)			(746)	(13,204)	(13,950)
Other comprehensive income loss adjustments				87		87	150	237
Net income					128,833	128,833	(787)	128,046
Balance at Dec. 31, 2018	$ 5		$ 371,794	$ (524)	$ 191,133	$ 562,408	$ 8,318	$ 570,726
Balance (in shares) at Dec. 31, 2018	46,052,802

[1] Represents an amount less than $1.