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Note 9 - Commitments and Contingencies (Details) (USD $)
12 Months Ended 0 Months Ended 12 Months Ended 1 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Jan. 04, 2007
First Three Renewal Options [Member]
Bedford, Massachusetts [Member]
Jan. 04, 2007
Final Renewal Option [Member]
Bedford, Massachusetts [Member]
Jan. 04, 2007
Bedford, Massachusetts [Member]
Dec. 31, 2013
Bedford, Massachusetts [Member]
sqft
Dec. 30, 2009
Abano Terme, Italy [Member]
sqft
Note 9 - Commitments and Contingencies (Details) [Line Items]                
Area of Leased Space (in Square Feet)             134,000 28,000
Lessee Leasing Arrangements, Operating Leases, Term of Contract           11 years   6 years
Option to Extend Operating Lease Term, Number of Periods           4    
Lessee Leasing Arrangements, Operating Leases, Renewal Term       5 years 6 years      
Operating Leases, Rent Expense (in Dollars) $ 1,400,120 $ 2,486,849 $ 3,479,632