Product Warranty (Tables)

3 Months Ended

Jun. 30, 2013

Product Warranties Disclosures [Abstract]

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, 2013 are summarized as follows:

Balance at March 31, 2013	$	221
Warranty costs incurred		(45	)
Change in estimates to pre-existing warranties		—
Product warranty accrual		19
Balance at June 30, 2013	$	195