4. Inventories (Details) - Schedule of Inventory, Current (USD $)	Mar. 31, 2014	Mar. 31, 2013
Schedule of Inventory, Current [Abstract]
Purchased parts	$ 3,085,070	$ 4,418,989
Work-in-process	1,134,714	1,636,325
Finished goods	10,607	385,867
Less: Allowance for obsolete inventory	(205,000)	(200,000)
	$ 4,025,391	$ 6,241,181