XML 62 R51.htm IDEA: XBRL DOCUMENT v3.5.0.2
Note 9 - Basic and Diluted Earnings Per Common Share (Details Textual) - shares
3 Months Ended 6 Months Ended 18 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2016
Stock Repurchase [Member]        
Stock Repurchased and Retired During Period, Shares 209,698 25,413 308,416 239,502
Tender Offer [Member]        
Stock Repurchased and Retired During Period, Shares   193,907    
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 76,800   126,800