Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net (loss) income	$ (10,119)	$ 16,491
Adjustments to reconcile net (loss) income to cash flows from operating activities:
Amortization of intangible assets	382	389
Depreciation of property and equipment	59	57
Stock-based compensation expense	888	726
Amortization of bond premium on marketable securities	68	41
Changes in operating assets and liabilities:
Accounts receivable and other current assets	520	(618)
Accounts payable and accrued expenses	548	230
Deferred revenue	(17)	(69)
Deferred rent	4	10
Net cash (used in) provided by operating activities	(7,667)	17,257
Cash flows from investing activities:
Purchases of marketable securities	(5,843)	(3,287)
Maturities of marketable securities	5,305	250
Purchases of property and equipment	(36)	(28)
Net cash used in investing activities	(574)	(3,065)
Cash flows from financing activities:
Exercise of stock options	338	235
Net cash provided by financing activities	338	235
Effect of foreign exchange rate changes on cash and cash equivalents	(8)	(10)
Net (decrease) increase in cash and cash equivalents	(7,911)	14,417
Cash and cash equivalents at beginning of period	19,121	15,334
Cash and cash equivalents at end of period	$ 11,210	$ 29,751