Interest Rate Swap Agreements (Tables)

3 Months Ended

Jun. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of locations and amounts of (gains) losses recognized in income

	Three months ended June 30,
	(In thousands)
	2016			2015
Periodic change in fair value of interest rate swap agreements	$	(18	)	$	(44	)
Periodic settlement differentials included in interest expense		(63	)		(95	)
Loss recognized in income	$	(81	)	$	(139	)

Schedule of variable rates received and average fixed rates paid under the swap agreements

	Three months ended June 30,
	2016			2015
Variable rate received		0.44	%		0.18	%
Fixed rate paid		0.94	%		0.94	%