ALLOWANCE FOR DOUBTFUL ACCOUNTS:

12 Months Ended

Mar. 31, 2015

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

ALLOWANCE FOR DOUBTFUL ACCOUNTS:

10.ALLOWANCE FOR DOUBTFUL ACCOUNTS:

A summary of the activity of the allowance for doubtful accounts, returns and credits is as follows (dollars in thousands):

	Balance at beginning of period		Additions charged to costs and expenses		Other changes			Bad debts written off, net of amounts recovered			Balance at end of period
2013:
Allowance for doubtful accounts, returns and credits	$	4,876	$	902	$	(112	)	$	(1,525	)	$	4,141
2014:
Allowance for doubtful accounts, returns and credits	$	4,141	$	1,058	$	117		$	(405	)	$	4,911
2015:
Allowance for doubtful accounts, returns and credits	$	4,911	$	731	$	(288	)	$	(895	)	$	4,459

Other changes in the table above result primarily from the effects of exchange rates.