Product Warranty (Tables)

3 Months Ended

Jun. 30, 2014

Changes in Carrying Amount of Accrued Product Warranty Costs

Changes in the carrying amount of accrued product warranty costs for the three month period ended June 30, 2014 are summarized as follows:

Balance at March 31, 2014	$	284
Warranty costs incurred		(49	)
Change in estimates to pre-existing warranties		—
Product warranty accrual		68
Balance at June 30, 2014	$	303