Three Months Ended June 30, 2022 Compared to the Three Months Ended June 30, 2021
Net sales. Net sales were $6,935,976 for the three months ended June 30, 2022 compared to $6,180,183 for the three months ended June 30, 2021, an increase of 12.2%. Product sales increased $596,467 and customer service sales increased $358,048 in the three months ended June 30, 2022 compared to the year ago quarter. This increase in product sales for the three months ended June 30, 2022 was primarily the result of additional shipments of displays for retrofit programs to commercial air transport customers as well as additional volume sold to Pilatus under the Company’s PC-24 contract.
Cost of sales. Cost of sales increased $53,781, or 1.9%, to $2,879,462, or 41.5% of net sales, in the three months ended June 30, 2022, compared to $2,825,681 or 45.7% of net sales, in the three months ended June 30, 2021. The increase in cost of sales was primarily the result of an increase in product sales volume for the three months ended June 30, 2022 compared to the three months ended June 30, 2021. The Company’s overall gross margin was 58.5% and 54.3% for the three months ended June 30, 2022 and 2021, respectively. The increase in gross margin percentage for the three months ended June 30, 2022 is attributable to favorable leveraging of fixed costs resulting from the increased sales and production volume, lower FTE’s, and a favorable product mix.
Research and development. R&D expense decreased $29,586, or 4.6%, to $676,381 in the three months ended June 30, 2022 from $646,795 in the three months ended June 30, 2021. As a percentage of net sales, R&D expense decreased to 9.8% of net sales in the three months ended June 30, 2022 from 10.5% of net sales in the three months ended June 30, 2021 reflecting increased net sales in the current quarter. The increase in R&D expense in the quarter was primarily the result of a slight decrease in payroll and payroll related benefits.
Selling, general and administrative. Selling, general and administrative expense increased by $182,095 or 12.0% to $1,694,233 in the three months ended June 30, 2022 from $1,512,138 in the three months ended June 30, 2021. As a percentage of net sales, selling, general and administrative expenses remained consistent on a quarterly basis to prior year. The overall increase in selling, general and administrative expense in the quarter was primarily the result of an increase in professional fees.
Interest income. Interest income increased by $10,322 to $10,429 in the three months ended June 30, 2022 from $107 in the three months ended June 30, 2021, mainly a result of increased cash balance in the current year period compared to the same period in the prior year.
Other income. Other income is mainly composed of royalties earned and increased by $4,377 to $21,608 in the three months ended June 30, 2022 compared to the same period in the prior year.
Income tax expense. The income tax expense for the three months ended June 30, 2022 was $358,763 as compared to an income tax benefit of $1,473,014 for the three months ended June 30, 2021. This difference was the result of the release of valuation allowances against deferred tax assets in the prior year.
The effective tax rate for the three-month period ended June 30, 2022 was 20.9% and differs from the statutory tax rate primarily due to permanent items and state taxes.
The effective tax benefit rate for the three-month period ended June 30, 2021 was 121.4% and differs from the statutory tax rate primarily due to the release of the valuation allowance for deferred tax assets. This release both increased the deferred tax asset and removed the valuation allowance.
Net income. The Company reported net income for the three months ended June 30, 2022 of $1,359,174 compared to net income of $2,685,921 for the three months ended June 30, 2021. On a diluted basis, the net income per share was $0.08 for the three months ended June 30, 2022 compared to net income per share of $0.16 for the three months ended June 30, 2021.
Nine Months Ended June 30, 2022 Compared to the Nine Months Ended June 30, 2021
Net sales. Net sales were $20,477,574 for the nine months ended June 30, 2022 compared to $16,171,680 for the nine months ended June 30, 2021, an increase of 26.6%. Product sales increased $3,618,631, customer service increased $773,773 and EDC sales decreased ($86,510) in the nine months ended June 30, 2022 compared to the same period in the prior year. This increase in product sales for the nine months ended June 30, 2022 primarily resulted from increased shipments of displays for retrofit programs to commercial air transport customers as well as increased shipments to Pilatus under the Company’s PC-24 contract.