Debt Instruments (table)

3 Months Ended

Jun. 30, 2012

Line of Credit Facility [Abstract]

Schedule of Line of Credit Facilities [Table Text Block]

		First Quarter
	2013			2012
		(In thousands)
Reported end of period:
Outstanding borrowings	$	100,000		$	115,460
Weighted average interest rate		1.49	%		1.19	%
Reported during the period:
Maximum amount of borrowings	$	144,328		$	136,021
Average outstanding borrowings	$	111,481		$	116,980
Weighted average interest rate		1.58	%		1.23	%