Note 7

Other Accrued Liabilities:

	September 30, 2018		December 31, 2017

Accrued warranty, current	$	146	$	109
Accrued compensation, including commissions and vacation		1,196		785
Accrued sales and other taxes		869		904
Distributor rights liability, current		-		85
Accrued professional fees and other accrued liabilities		486		477
Total other accrued liabilities	$	2,697	$	2,360

Included in accrued sales and other taxes are certain estimated sales and use taxes and related penalties and interest currently assessed but not adjudicated by taxing authorities. All the Company's tax positions are subject to audit. The Company has been subject to audits performed by the taxing authorities. The Company uses estimates when accruing its sales and use tax liability, including interest and penalties. While the Company believes all its estimates and assumptions are reasonable and will be sustained upon audit, actual liabilities and credits may differ significantly. The Company believes its accruals cover all probable payments relating to sales and use taxes.

Accrued Warranty Costs

The Company offers a standard warranty on product sales generally for a one to two-year period, however, the Company has offered longer warranty periods, ranging from three to four years, in order to meet competition or meet customer demands. The Company provides for the estimated cost of the future warranty claims on the date the product is sold. Total accrued warranty is included in Other Accrued Liabilitiesand Other liabilitieson the condensed consolitated balance sheet. The activity in the warranty accrual during the nine months ended September 30, 2018 and 2017 is summarized as follows:

	September 30, 2018			December 31, 2017

Balance at beginning of period	$	178		$	115
Additions charged to warranty expense		91			161
Expiring warranties/claimed satisfied		(19	)		(98	)
Balance at end of period	$	250		$	178