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Note 18 - Subsequent Events (Details Textual) - Citizens Bank of Pennsylvania [Member] - USD ($)
$ in Millions
Aug. 09, 2018
Aug. 08, 2018
Jun. 30, 2018
Feb. 13, 2018
Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 40.0 $ 35.0
Letter of Credit [Member]        
Line of Credit Facility, Maximum Borrowing Capacity     $ 5.0  
Subsequent Event [Member] | Revolving Credit Facility [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 45.0 $ 40.0    
Line of Credit Facility, Expiration Date Aug. 08, 2023      
Line of Credit, Waivers from Certain Financial Covenant Calculations $ 1.4