Note 8 - Credit Facility (Detail) (USD $)
3 Months Ended
Jun. 30, 2012
Mar. 31, 2012
Line of Credit Facility, Maximum Borrowing Capacity $ 6,000,000  
Line of Credit Facility, Description The Receivables Financing Facility may be drawn in amounts up to $2.0 million in the aggregate, subject to a minimum borrowing base requirement equal to 80% of the Company's eligible accounts receivable as determined under the 2011 Credit Facility.The Working Capital Facility may be drawn in such amounts as requested by the Company, not to exceed $4.0 million in the aggregate.The Credit Facility terminates on September 29, 2012, provided, however, that in the event of an early termination by the Company, a penalty of 1.0% of the total credit facility would be triggered. All amounts borrowed under the Credit Facility are secured by a general security interest on the assets of the Company and are subject to a 1.75 Current Ratio of (i)cash and cash equivalents plus all eligible receivables in relation to (ii)the Company's current liabilities excluding current deferred revenue.  
Line of Credit Facility, Interest Rate Description Except as otherwise set forth in the Credit Facility, borrowings made under the Receivables Financing Facility will bear interest at a rate equal to the prime rate or 3.25%, whichever is greater, plus 0.25%, and borrowings made under the Working Capital Facility will bear interest at a rate equal to the financial institution's certificate of deposit 30-day rate plus 200 basis points, with the total minimum monthly interest to be charged being $2,000.  
Line of Credit Facility, Amount Outstanding 6,000,000 6,000,000
Receivable Financing Facility [Member]
   
Line of Credit Facility, Maximum Borrowing Capacity 2,000,000  
Working Capital Facility [Member]
   
Line of Credit Facility, Maximum Borrowing Capacity $ 4,000,000