Quarterly report pursuant to Section 13 or 15(d)

Revolving Credit Agreement and Debt (Details Textual)

Revolving Credit Agreement and Debt (Details Textual) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Debt Disclosure (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
Borrowings 0
Revolving Credit Facility [Member]
Debt Disclosure (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
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 $ 6.7