Thank you, Lou. As Lou mentioned, sales for the first quarter were slightly higher than the first quarter of 2020, with the increase being about 2%. Gross profit for the quarter was a little disappointing. Gross profit declined by about $400,000 compared to last year, and it was about 13% of sales. Now this was caused by several factors: first, we had increases in manufacturing overhead costs, in particular, costs for employee benefits and depreciation. Employee benefits, and here is principally health insurance, increased a new plan year began in January. And depreciation increased because we spent $4 million on new equipment.
Gross profit as a percentage of sales were also depressed due to the cancellation of the commercial aircraft order, which Lou alluded to, where we just recovered our cost and had no profit but had revenue. Also, as Lou said, we've had difficulty finding help. We have fewer production employees in 2021 than we did in the prior year. So this reduced total production hours in the shop. And for the quarter, we were about 5,000 less this year than last year in 2020.
So the good news is the sales increased with fewer hours. The bad news, each of these hours carried a higher overhead burden. So hopefully, when the special incentives to remain unemployment end, we can fully staff up. And then hours should return to levels in 2020 and additional hours should absorb the increased cost.
The decline in gross profit was more than offset by lower operating costs. Operating costs for the quarter were about $500,000 less than in 2020. So gross profit was down $400,000, operating cost down by $500,000, with a net gain of $100,000 for the quarter. As a result, operating profit increased by $108,000 as we had an operating profit in the first quarter this year compared to a loss in Q1 of last year.
For the quarter, we had a small net loss of $152,000. And this compared to a profit in 2020. However, the profit in 2020 was entirely due to a COVID legislation-related tax benefit of about $1.4 million. Without this, our net loss last year would have been $356,000. So in 2021, we reduced the loss by more than 1/2.
So for the quarter, we had EBITDA of $1.2 million. Generated positive cash flow was out of $500,000. We reduced our bank debt by $160,000. Our cash on hand and accounts receivable increased by [ $360,000 ]. And accounts payable and accrued expenses declined by close to $50,000. So as a result, our liquidity position remains more than adequate.
And with that, I'll turn the call back to Lou, and I look forward to any questions you might have. Lou, you're up.