|
Inventories (Details) (USD $)
|
Dec. 31, 2012
|
Mar. 31, 2012
|
|---|---|---|
| Inventories [Abstract] | ||
| Raw materials | $ 1,555,721 | $ 1,285,106 |
| Work in process | 1,713,369 | 1,658,467 |
| Finished goods | 771,433 | 585,803 |
| Inventory, Gross, Total | 4,040,523 | 3,529,376 |
| Less inventory reserve | (285,000) | (300,000) |
| Total inventories | $ 3,755,523 | $ 3,229,376 |