XML 73 R62.htm IDEA: XBRL DOCUMENT v3.5.0.2
Note 13 - Stockholders' Equity (Details Textual) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Feb. 09, 2016
Feb. 11, 2015
Stock Buyback Program 2016 [Member]            
Stock Repurchase Program, Authorized Amount         $ 40,000,000  
Stock Repurchased and Retired During Period, Shares 209,698   308,416      
Stock Repurchased and Retired During Period, Value $ 5,000,000   $ 7,200,000      
Stock Buyback Program 2015 [Member]            
Stock Repurchase Program, Authorized Amount           $ 20,000,000
Stock Repurchased and Retired During Period, Shares   25,413 0 239,502    
Stock Repurchased and Retired During Period, Value   $ 500,000   $ 4,500,000    
Tender Offer [Member]            
Stock Repurchased and Retired During Period, Shares       193,907    
Stock Repurchased and Retired During Period, Value       $ 3,600,000    
Treasury Stock Acquired, Average Cost Per Share       $ 18.50    
Stock Repurchased Transaction Costs       $ 70,000    
Stock Repurchased and Retired During Period, Value $ 4,999,978   $ 7,180,257