Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Agreement (Details)

Revolving Credit Agreement (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Sep. 30, 2012
Revolving Credit Agreement (Additional Textual) [Abstract]  
Minimum Eligible inventory $ 3.0
Revolving loans, interest rate LIBOR plus a spread of 2.25%, or an alternative base rate which is greater of prime rate or the Federal Funds rate less 0.25%
Maturity date Mar. 31, 2013
Debt 0
Revolving credit facility [Member]
Revolving Credit Agreement (Textual) [Abstract]  
Asset-based revolving credit facility maximum borrowing capacity 12.0
Asset-based revolving credit facility 80% of eligible accounts receivable plus lesser of 30% of eligible inventory or $3.0 million
Non-use fee on unused portion of revolving loans 0.20%
Payment of non-use fee A non-use fee of 0.2% per annum waived if maintains with the lender an average monthly non-interest bearing account balance of $5.0 million and an average monthly balance of $15.0 million consisting of other investments
Amount available under Credit Agreement $ 7.2