Thanks, Bob. Third quarter 2013 end user net revenues were $8.7 million or 88% of net revenues, compared with second quarter end user net revenues of $9.9 million. OEM net revenues were $1.2 million or 12% of net revenues, compared with second quarter OEM net revenues of $1.2 million. As Bob noted earlier, net revenues from markets outside of semiconductor test were $3.6 million or 37% of net revenues, compared with $2.5 million or 22% of net revenues in the fourth quarter.
The Company's gross margin for the third quarter was $4.8 million or 48%, as compared with $5.5 million or 49% in the second quarter. The reduction in the gross margin was primarily driven by a less favorable absorption of our fixed manufacturing cost on the third quarter on lower revenue levels, which increased from 13% of net revenues in the second quarter to 16% of net revenues in the third quarter. Also contributing to the reduction in our Q3 gross margin was an increase in our fixed manufacturing cost, which increased from $1.4 million in Q2 to $1.5 million in Q3. The increase in our fixed manufacturing cost as a percentage of net revenues in the third quarter was partially offset by a decrease in our consolidated material cost, which decreased from 35.5% in the second quarter to 33% in the third quarter.
Our Electrical Product segment experienced an increase in its component material costs quarter over quarter, increasing from 36.8% in Q2 to 41.3% in Q3, while our Thermal and Mechanical Product segment saw declines in their component material cost. The increase in our Electrical Product segment was driven by changes in customer mix. Our Thermal Product segment component material cost decreased from 29.5% in Q2 to 28.2% in Q3 due to product mix, while our Mechanical Product segment decreased from 44% in Q2 to 38.7% in Q3 due to both product and customer mix.
I will now discuss the breakdown of operating expenses for the quarter. Selling expense for the third quarter was $1.3 million, compared with $1.5 million for the second quarter, a decrease of 273,000 or 18%. The decrease was primarily due to reduced levels of sales commission expense on lower levels of revenues, as well as reduced accruals for product warranty costs. Engineering and product development expense was $945,000 for the Q3 compared to $925,000 for Q2, an increase of $20,000 or 2%, driven primarily by increased spending on product development initiatives.
General and administrative expense for the third quarter was $1.5 million, relatively unchanged from the level in the second quarter, with costs declining $54,000 or 4%. The decrease was primarily driven by reduced spending on investor relations and professional fees.
Other income was $27,000 for the third quarter compared to the other expense of $2,000 for the second quarter, driven primarily by foreign exchange transaction gains in the third quarter compared to losses in the second quarter, as well as a gain on the sale from the disposition of certain fixed assets no longer being used.
We accrued income tax expense of $24,000 during the third quarter, compared to $484,000 booked in the second quarter. Our effective tax rate of 2.2% in the third quarter declined significantly from the 33% recorded in the second quarter. The decline in the tax rate in the third quarter was primarily driven by the impact of booking the favorable results of the completion of the tax authority audit of our German deferred tax assets, where we had a significant valuation allowance. To a lesser extent, we had a tax credit true-up based upon the finalization of our 2012 tax return. We expect our effective tax rate will be in the mid to upper 20% range during the fourth quarter of 2013, and at September 30, 2013, we had total deferred tax assets of $2.2 million, up $220,000 from June 30, 2013.
Third quarter net income, as Bob mentioned earlier, was $1.1 million or $0.10 per diluted share, compared with second quarter net income of $1.0 million or $0.10 per diluted share. Q3 was a heavy $0.10 per share versus Q2 being a light $0.10 per share.
Average shares outstanding were 10,421,000 at September 30, 2013, up 27,000 shares from the level at June 30, 2013.
Amortization and depreciation expense was $214,000 for the third quarter and EBITDA was $1.3 million for the third quarter.
For the nine months ended September 30, 2013, net revenues were $30.1 million, a reduction of $5.0 million or 14% from the comparable prior period, due to the softness in the semiconductor market in 2013 compared to 2012. However, due to an improved margin in 2013, 48% versus 44% in 2012, and a $1.3 million reduction in operating expenses year-over-year, which had been inflated in the first half of 2012 due to the acquisition of Thermonics and costs related to the move of our Silicon Valley operation, our net income for the first nine months of 2013 of $2.4 million or $0.23 per diluted share was $430,000 or $0.04 per share greater than the comparable prior period.
Consolidated headcount at the end of September, which includes temporary staff, was 131, a decrease of one individual during the third quarter.
I'll now turn to our balance sheet. Cash and cash equivalents at the end of the third quarter were $16.8 million, up $719,000 from June 30, 2013. We currently expect cash and cash equivalents to increase in the fourth quarter of 2013. Accounts receivable increased slightly to $7.4 million at September 30, 2013, up $165,000 from June. Inventory also increased slightly by $66,000 to $3.5 million at the end of September. And capital expenditures during the third quarter were $162,000, compared to $51,000 in the second quarter and $44,000 in the first quarter. The additions were in our Thermal Product segment, primarily, and represented additions to our leased systems as Bob mentioned earlier in the call. Bob provided the consolidated and segment booking data earlier in the call and the backlog at the end of September was $3.2 million, up from $2.7 million at the end of June.
In terms of our financial outlook, as noted in our earnings release, due to the seasonally down demand we typically experience in the fourth quarter of each year, we expect that net revenues for the quarter ended December 31, 2013, will be in the range of $8.5 to $9.5 million, with net earnings ranging from $0.02 to $0.06 per diluted share. We currently expect that our Q4 2013 product mix will be slightly less favorable than Q3 and that Q4 gross margin will range from 45 to 47%. As we noted in our earnings release, we currently expect that our orders in the second half of 2013 will be stronger than those of the first half. Please note that our outlook is based on the Company's current views with respect to operating and market conditions and customer forecasts, which are subject to change.
Operator, that concludes our formal remarks. We can now take questions.