Fair Value (Tables)

6 Months Ended

Dec. 31, 2018

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis

At December 31, 2018 and June 30, 2018, our assets and liabilities measured at fair value on a recurring basis were as follows:

	December 31, 2018								June 30, 2018
	Fair Value Measurements Using Input Types								Fair Value Measurements Using Input Types
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
	(in thousands)
Assets
Money market funds (cash and cash equivalents)	$	1,756	$	—	$	—	$	1,756	$	154	$	—	$	—	$	154
Available for sale securities - Debt
U.S. Corporate	$	—	$	991	$	—	$	991	$	—	$	3,467	$	—	$	3,467
Government - U.S.		—		7,424		—		7,424		—		6,480		—		6,480
Total available for sale securities	$	—	$	8,415	$	—	$	8,415	$	—	$	9,947	$	—	$	9,947
Short-term derivative interest rate swap	$	—	$	562	$	—	$	562	$	—	$	407	$	—	$	407
Long-term derivative interest rate swap	$	—	$	917	$	—	$	917	$	—	$	2,183	$	—	$	2,183

Marketable Securities by Major Security Type

The table below presents information regarding our marketable securities by major security type as of December 31, 2018 and June 30, 2018.

	December 31, 2018						June 30, 2018
	Held to Maturity		Available for Sale		Total		Held to Maturity		Available for Sale		Total
	(in thousands)
Marketable securities:
Corporate and other debt securities	$	62	$	8,415	$	8,477	$	65	$	9,947	$	10,012
Total marketable securities	$	62	$	8,415	$	8,477	$	65	$	9,947	$	10,012

Estimated Fair Value of Our Investments in Available for Sale Marketable Securities Classified

The following table summarizes the estimated fair value of our investments in available for sale marketable securities classified by the contractual maturity date of the securities:

	December 31, 2018
	(in thousands)
Due within 1 year	$	8,415
Due in 1 year through 5 years		—
Total	$	8,415

Summary of Gross Unrealized Losses and Fair Values of Available for Sale Investments

The following table presents the aggregate fair values and gross unrealized losses for those available for sale investments that were in an unrealized loss position as of December 31, 2018 and June 30, 2018, respectively, aggregated by investment category and the length of time that individual securities have been in a continuous loss position:

	At December 31, 2018					At June 30, 2018
	Less than 12 Months
	Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
	(in thousands)
Government—U.S.	$	3,476	$	(3	)	$	6,480	$	(6	)
Total	$	3,476	$	(3	)	$	6,480	$	(6	)