XML 69 R56.htm IDEA: XBRL DOCUMENT v3.8.0.1
Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Net long-term deferred assets and (liabilities) relating to:    
Accounts receivable and inventory reserves $ 318 $ 587
Warranty accrual 2,698 3,165
Other accruals 1,395 1,715
Share-based compensation 1,432 1,784
Donations 152 463
Other, net 698 738
Total deferred income tax assets 6,693 8,452
Property & equipment (14,670) (17,983)
Total deferred income tax liabilities (14,670) (17,983)
Net deferred income tax liabilities $ 7,977 $ 9,531