Valuation and Qualifying Accounts (Tables)

12 Months Ended

Mar. 31, 2015

Valuation and Qualifying Accounts [Abstract]

Schedule of valuation and qualifying accounts

	Year Ended March 31,
	2015			2014			2013
Allowance for doubtful accounts:
Balance at beginning of period	$	7		$	5		$	5
Provision for doubtful accounts		95			95			56
Write-off of uncollectible accounts receivable		(94	)		(93	)		(56	)
Balance at end of year	$	8		$	7		$	5