Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

Valuation And Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

(In thousands)	Balance at Beginning of Period		Charged to Costs & Expenses		Deductions		Balance at End of Period
Year ended December 31, 2018
Allowance for Doubtful Accounts	$	—		128		—	$	128
Inventory Reserve	$	23,355		7,006		352	$	30,009
Warranty Liability	$	9,724		7,392		8,493	$	8,623
Deferred Tax Asset Valuation Allowance	$	6,006		—		190	$	5,816
Year ended December 31, 2017
Allowance for Doubtful Accounts	$	—		—		—	$	—
Inventory Reserve	$	25,249		6,406		8,300	$	23,355
Warranty Liability	$	8,548		6,951		5,775	$	9,724
Deferred Tax Asset Valuation Allowance	$	6,149		18		161	$	6,006
Year ended December 31, 2016
Allowance for Doubtful Accounts	$	19		—		19	$	—
Inventory Reserve	$	26,675		3,303		4,729	$	25,249
Warranty Liability	$	8,739		8,561		8,752	$	8,548
Deferred Tax Asset Valuation Allowance	$	7,250		69		1,170	$	6,149