Marketable Securities (Tables)

3 Months Ended

Sep. 30, 2014

Marketable Securities

Summary of the fair value, the amortized cost and unrealized holding gains (losses) on marketable securities

The following table summarizes the fair value, the amortized cost and unrealized holding gains (losses) on our marketable securities as of September 30, 2014 and June 30, 2014:

	Fair Value		Cost		Unrealized Gains		Unrealized Losses
	(Dollars in Thousands)
September 30, 2014:
U.S. corporate bonds	$	72,352	$	72,356	$	20	$	(24	)
Total short-term marketable securities	$	72,352	$	72,356	$	20	$	(24	)
U.S. corporate bonds	$	23,635	$	23,680	$	—	$	(45	)
Total long-term marketable securities	$	23,635	$	23,680	$	—	$	(45	)
June 30, 2014:
U.S. corporate bonds	$	67,619	$	67,587	$	39	$	(7	)
Total short-term marketable securities	$	67,619	$	67,587	$	39	$	(7	)
U.S. corporate bonds	$	31,270	$	31,290	$	1	$	(21	)
Total long-term marketable securities	$	31,270	$	31,290	$	1	$	(21	)