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Note 7 - Long-Term Debt (Details) (USD $)
0 Months Ended 7 Months Ended 9 Months Ended 9 Months Ended
Sep. 30, 2014
Aug. 05, 2011
HSBC Bank [Member]
Revolving Credit Facility [Member]
London Interbank Offered Rate (LIBOR) [Member]
Aug. 05, 2011
HSBC Bank [Member]
Revolving Credit Facility [Member]
Prime Rate [Member]
Aug. 05, 2011
HSBC Bank [Member]
Revolving Credit Facility [Member]
Sep. 30, 2014
HSBC Bank [Member]
Revolving Credit Facility [Member]
Dec. 31, 2013
HSBC Bank [Member]
Revolving Credit Facility [Member]
Aug. 05, 2011
HSBC Bank [Member]
Revolving Credit Facility [Member]
Aug. 05, 2011
HSBC Bank [Member]
Five-Year Term Loan [Member]
Sep. 30, 2014
HSBC Bank [Member]
Five-Year Term Loan [Member]
Dec. 31, 2013
HSBC Bank [Member]
Five-Year Term Loan [Member]
Sep. 30, 2014
HSBC Bank [Member]
HSBC Bank Mortgage Loan [Member]
London Interbank Offered Rate (LIBOR) [Member]
Sep. 30, 2014
HSBC Bank [Member]
HSBC Bank Mortgage Loan [Member]
Dec. 31, 2013
HSBC Bank [Member]
HSBC Bank Mortgage Loan [Member]
Mar. 15, 2012
HSBC Bank [Member]
HSBC Bank Mortgage Loan [Member]
Aug. 05, 2011
HSBC Bank [Member]
Note 7 - Long-Term Debt (Details) [Line Items]                              
Line of Credit Facility, Maximum Borrowing Capacity             $ 7,000,000               $ 9,100,000
Debt Instrument, Term               5 years              
Debt Instrument, Face Amount               2,100,000           6,000,000  
Debt Instrument, Collateral Amount               1,000,000              
Debt Instrument, Collateral Release Amount               200,000              
Restricted Cash and Cash Equivalents 400,000                            
Debt Instrument, Periodic Payment                 35,000     25,000      
Loans Payable to Bank                 805,000 1,120,000          
Debt Instrument, Interest Rate, Stated Percentage               3.045%       1.9036% 1.9166%    
Long-term Line of Credit         0 0                  
Debt Instrument, Maturity Date       Aug. 05, 2015                      
Debt Instrument, Basis Spread on Variable Rate   1.75% 0.50%               1.75%        
Long-term Debt                       $ 3,941,000