Valuation and Qualifying Accounts (Tables)

12 Months Ended

Mar. 31, 2016

Valuation and Qualifying Accounts [Abstract]

Schedule of valuation and qualifying accounts

	Year Ended March 31,
	2016			2015			2014
Allowance for doubtful accounts:
Balance at beginning of period	$	8		$	7		$	5
Provision for doubtful accounts		260			94			95
Write-off of uncollectible accounts receivable		(255	)		(93	)		(93	)
Balance at end of year	$	13		$	8		$	7