8. PRODUCT WARRANTIES

9 Months Ended

Feb. 28, 2015

Product Warranties Disclosures [Abstract]

8. PRODUCT WARRANTIES

8.  PRODUCT WARRANTIES

 The Company provides for the estimated cost of product warranties at the time the products are shipped.  While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure.  Should actual product failure rates, material usage or service delivery costs differ from the Company’s estimates, revisions to the estimated warranty liability would be required.

 The standard warranty period is ninety days for parts and service and one year for systems.

 Following is a summary of changes in the Company's liability for product warranties during the three and nine months ended February 28, 2015 and 2014 (in thousands):

	Three Months Ended						Nine Months Ended
	February 28,						February 28,
	2015			2014			2015			2014
Balance at the beginning of the period	$	149		$	208		$	223		$	222
Accruals for warranties issued during the period		47			34			145			188
Settlement made during the period (in cash or in kind)		(34	)		(46	)		(206	)		(214	)
Balance at the end of the period	$	162		$	196		$	162		$	196

 The accrued warranty balance is included in accrued expenses on the accompanying condensed consolidated balance sheets.