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Note 7 - Short and Long-Term Debt Oustanding (Details) - USD ($)
Dec. 31, 2015
Dec. 31, 2014
Line of Credit [Member]    
Revolving Credit Facility (due 2017) $ 5,000,000
The 2010 Term Loan [Member]    
Revolving Credit Facility (due 2017) 4,725,000 $ 5,775,000
The 2015 6-year Term Loan [Member]    
Revolving Credit Facility (due 2017) 4,594,000
The 2015 20-Year Term Loan [Member]    
Revolving Credit Facility (due 2017) 5,133,000
BOH [Member]    
Revolving Credit Facility (due 2017) 20,000
Bridge Loan [Member]    
2015 Bridge Loan (due 2017) (1) [1] 2,835,000
Excluding Bridge Loan [Member]    
Current portion of long-term debt 2,202,000 $ 1,050,000
Current portion of long-term debt 2,202,000 1,050,000
Total short-term debt outstanding 2,202,000 1,050,000
Revolving Credit Facility (due 2017) 22,307,000 5,775,000
Total long-term debt outstanding $ 20,105,000 $ 4,725,000
[1] Maturity date for the 2015 Bridge Loan may be earlier than 2017. See description of the 2015 Bridge Loan below.