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Note 5 - Credit Facility (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
May. 21, 2015
Sep. 30, 2015
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
The Home Savings and Loan Company [Member] | Prime Rate [Member] | Line of Credit [Member]          
Debt Instrument, Basis Spread on Variable Rate 0.25%        
The Home Savings and Loan Company [Member] | Line of Credit [Member]          
Debt Instrument, Interest Rate During Period   3.50% 3.16%    
Debt Instrument, Interest Rate, Effective Percentage   3.50% 3.50%    
The Home Savings and Loan Company [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 9,000,000        
Line of Credit, Current   $ 7,600,000 $ 7,600,000    
Line of Credit Facility, Remaining Borrowing Capacity   1,400,000 1,400,000    
Deferred Finance Costs, Net   17,000 17,000    
Huntington National Bank [Member]          
Repayments of Lines of Credit     5,000,000    
Long-term Line of Credit, Noncurrent       $ 2,900,000  
Line of Credit, Current   $ 7,600,000 7,600,000  
Repayments of Lines of Credit     $ 5,000,000  
Long-term Line of Credit, Noncurrent     $ 3,800,000
Interest Costs Capitalized   $ 20,000 $ 97,000