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Inventories
6 Months Ended
Sep. 30, 2012
Inventories [Abstract]  
Inventories
NOTE 6. INVENTORIES
Inventories consisted of the following:

September 30
2012
March 31
2012
Raw materials $ 1,435,977 $ 1,285,106
Work in process 1,582,155 1,658,467
Finished goods 789,356 585,803
3,807,488 3,529,376
Less inventory reserve (285,000 ) (300,000 )
Total inventories $ 3,522,488 $ 3,229,376