J. ACCRUED LIABILITIES (Tables)

12 Months Ended

Dec. 31, 2017

Payables and Accruals [Abstract]

Schedule of accrued liabilities

Accrued liabilities consisted of the following for the periods indicated (in thousands):

	As of December 31,
	2017		2016
Accrued payroll	$	11,693	$	9,231
Accrued rent		1,180		959
Accrued employee benefits		2,035		1,572
Accrued state and local taxes		951		607
Advance payments		441		252
Accrued product warranty		1,118		705
Accrued commission expenses		425		205
Accrued professional fees		181		163
Accrued other		1,079		758
	$	19,103	$	14,452