|
Statements of Income (USD $)
|
12 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2013
|
Mar. 31, 2012
|
Mar. 31, 2011
|
|
| Revenue | |||
| Product sales | $ 24,434,823 | $ 25,151,822 | $ 26,024,823 |
| Contract research and development | 2,598,596 | 3,427,398 | 5,172,240 |
| Total revenue | 27,033,419 | 28,579,220 | 31,197,063 |
| Cost of sales | 7,025,181 | 9,325,511 | 9,783,698 |
| Gross profit | 20,008,238 | 19,253,709 | 21,413,365 |
| Expenses | |||
| Selling, general , and administrative | 2,240,563 | 2,380,603 | 2,474,468 |
| Research and development | 2,570,821 | 2,600,058 | 1,269,127 |
| Total expenses | 4,811,384 | 4,980,661 | 3,743,595 |
| Income from operations | 15,196,854 | 14,273,048 | 17,669,770 |
| Interest income | 2,359,603 | 2,350,191 | 2,021,426 |
| Income before taxes | 17,556,457 | 16,623,239 | 19,691,196 |
| Provision for income taxes | 5,727,619 | 5,242,144 | 6,330,251 |
| Net income | $ 11,828,838 | $ 11,381,095 | $ 13,360,945 |
| Net income per share - basic | $ 2.44 | $ 2.37 | $ 2.83 |
| Net income per share - diluted | $ 2.43 | $ 2.34 | $ 2.76 |
| Weighted average shares outstanding | |||
| Basic | 4,839,810 | 4,796,227 | 4,729,035 |
| Diluted | 4,863,546 | 4,863,471 | 4,844,266 |