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Warranty Accrual | 12 Months Ended
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Jun. 30, 2017
Product Warranties Disclosures [Abstract] |
Warranty Accrual | 6. Warranty Accrual Information relating to the accrual for warranty costs for the years ended June 30, 2017 and 2016 is as follows (in thousands):
|  | June 30, |
|  | 2017 |  |  | 2016 |
Balance at beginning of year |  | $ | 365 |  |  | $ | 261 |
Accruals during the year |  |  | 316 |  |  |  | 350 |
Change in estimates of prior period accruals |  |  | (224 | ) |  |  | (154 | )
Warranty amortization |  |  | (298 | ) |  |  | (92 | )
Balance at end of year |  | $ | 159 |  |  | $ | 365 |
Warranty expense relating to new product sales and changes to estimates was $92,000 and $196,000, respectively, for the fiscal years ended June 30, 2017 and 2016.

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- References No definition available. + Details
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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details
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