4. Inventories (Details) - Schedule of Inventory, Current - USD ($)	Mar. 31, 2015	Mar. 31, 2014
Schedule of Inventory, Current [Abstract]
Purchased parts	$ 2,746,671	$ 3,085,070
Work-in-process	1,514,356	1,134,714
Finished goods	334	10,607
Less: Allowance for obsolete inventory	(229,287)	(205,000)
	$ 4,032,074	$ 4,025,391