Inventories (Details) - USD ($)	Jun. 30, 2015	Mar. 31, 2015
Inventories [Abstract]
Raw materials	$ 3,377,000	$ 3,156,000
Work-in-process	658,000	527,000
Finished goods	834,000	1,143,000
Inventories	4,868,685	4,825,984
Inventory [Line Items]
Inventory adjustment		$ 240,000
Inventory adjustment remaining amount recorded in future	60,000
Cost of Goods Sold [Member]
Inventory [Line Items]
Inventory adjustment	$ 180,000