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Note 12 - Transactions with Officers, Related Parties and Others (Details Textual)
12 Months Ended
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
PCG [Member] | Intercompany Services Agreement [Member]      
Related Party Transaction, Purchases from Related Party $ 0 $ 0 $ 42,000
Related Party Transaction, Other Revenues from Transactions with Related Party   21,000 70,000
PCG [Member]      
Revenue from Related Parties 0 0 $ 400,000
Accounts Receivable, Related Parties, Current $ 0 $ 0  
President and Chief Executive Officer [Member] | Employment Agreements [Member]      
Entitlement to Bonus   2  
Due to Officers or Stockholders   $ 650,000  
Target Bonus Percentage   100.00%  
Multiplier of Monthly Base Salary   24  
Period of Monthly Base Salary Paid in Installments   2 years  
Health Coverage Period on Termination of Employment   2 years  
Executive Officers [Member] | Employment Agreements [Member]      
Multiplier of Monthly Base Salary   12  
Multiplier of Difference Between Monthly Consolidated Omnibus Budget Reconciliation Act Coverage Premium and Monthly Employee Contribution   12