Capital Lease Obligations (Details) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Machinery and computer equipment under agreements accounted for as capital leases [Abstract]
Cost	$ 863,000	$ 1,606,000
Less: accumulated amortization	(466,000)	(776,000)
Total	397,000	830,000
Future minimum lease payments for capital leases [Abstract]
2014	279,000
2015	46,000
2016	35,000
2017	35,000
2018	28,000
Total minimum lease payments	423,000
Less amount representing interest	(25,000)
Present value of future minimum lease payment	398,000
Less current portion	(266,000)
Capital lease obligations, less current portion	$ 132,000