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Note 6 - Note Receivable (Details) (USD $)
1 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2010
Jun. 30, 2013
Jun. 30, 2012
Dec. 31, 2012
Jun. 30, 2013
Building [Member]
Jun. 30, 2013
Building [Member]
Note 6 - Note Receivable (Details) [Line Items]            
Proceeds from Sale of Real Estate $ 200,000          
Notes, Loans and Financing Receivable, Gross, Noncurrent 2,100,000          
Note Receivable Interest Rate 7.00%          
Maturities of Note Receivable 1,900,000          
Deferred Gain, Sale Of Property 700,000          
Gain (Loss) on Disposition of Property Plant Equipment   (16,000) 4,000   1,800 3,600
Notes, Loans and Financing Receivable, Net, Noncurrent   $ 1,966,000   $ 1,979,000