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Note 7 - Long-Term Debt (Details) (USD $)
0 Months Ended 7 Months Ended 0 Months Ended 3 Months Ended 9 Months Ended 0 Months Ended
Mar. 15, 2012
sqft
Aug. 05, 2011
Sep. 30, 2013
Sep. 30, 2013
HSBC Bank [Member]
Revolving Credit Facility [Member]
Dec. 31, 2012
HSBC Bank [Member]
Revolving Credit Facility [Member]
Aug. 05, 2011
HSBC Bank [Member]
Revolving Credit Facility [Member]
Sep. 30, 2013
HSBC Bank [Member]
Five-Year Term Loan [Member]
Dec. 31, 2012
HSBC Bank [Member]
Five-Year Term Loan [Member]
Aug. 05, 2011
HSBC Bank [Member]
Five-Year Term Loan [Member]
Aug. 05, 2011
HSBC Bank [Member]
Mar. 15, 2012
LIBOR [Member]
HSBC Bank Mortgage Loan [Member]
Mar. 15, 2012
Prime Rate [Member]
HSBC Bank Mortgage Loan [Member]
Sep. 30, 2013
HSBC Bank Mortgage Loan [Member]
Mar. 15, 2012
HSBC Bank Mortgage Loan [Member]
Note 7 - Long-Term Debt (Details) [Line Items]                            
Line of Credit Facility, Maximum Borrowing Capacity           $ 7,000,000       $ 9,100,000        
Debt Instrument, Face Amount                 2,100,000         6,000,000
Line of Credit Facility, Remaining Borrowing Capacity       7,000,000 7,000,000                  
Loans Payable to Bank             1,225,000 1,540,000            
Debt Instrument, Maturity Date   Aug. 05, 2014                       Mar. 15, 2022
Debt Instrument, Interest Rate Terms   Interest on the unpaid principal balance on this facility accrues at either (i) the LIBOR plus 1.75% or (ii) the bank's prime rate minus 0.50%.                        
Debt Instrument, Periodic Payment, Principal   35,000                        
Debt Instrument, Interest Rate, Stated Percentage   3.045%                        
Debt Instrument, Collateral   Borrowings under this term loan were additionally collateralized by $1 million of restricted cash deposits, provided that, so long as no event of default has occurred and is then continuing, HSBC will release $200,000 of the collateral on each anniversary of the closing date.                        
Restricted Cash and Cash Equivalents     800,000                      
Area of Real Estate Property (in Square Feet) 120,000                          
Purchase Price for Property Exclusive of Closing Costs 7,200,000                          
Debt Instrument, Basis Spread on Variable Rate                     1.75% 0.50%    
Repayments of Notes Payable                         1,309,000  
Long-term Debt                         $ 4,240,508