Warranty Liability (Tables)

9 Months Ended

Sep. 30, 2018

Warranty Liability

Schedule of rollforward of Company's warranty liability

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2018		2017		2018		2017
Balance at the beginning of the period	$	5,176	$	5,575	$	5,677	$	6,160
Establish warranty provision for Arrowhead		-		-		-		65
Warranty provision		1,050		615		2,821		2,178
Claims paid/settlements		(472)		(373)		(2,744)		(2,586)
Balance at the end of the period	$	5,754	$	5,817	$	5,754	$	5,817