Property and Equipment (Details) (USD $)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Mar. 31, 2014
Components of Property and Equipment
Property and equipment, gross	$ 19,242,000		$ 17,442,000
Accumulated depreciation	(8,569,000)		(7,845,000)
Property and equipment, net	10,673,000		9,597,000
Depreciation	700,000	600,000
Machinery
Components of Property and Equipment
Property and equipment, gross	3,241,000		1,927,000
Computer equipment and software
Components of Property and Equipment
Property and equipment, gross	9,310,000		8,923,000
Furniture and fixtures
Components of Property and Equipment
Property and equipment, gross	1,957,000		1,858,000
Leasehold improvements
Components of Property and Equipment
Property and equipment, gross	$ 4,734,000		$ 4,734,000