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4. EARNINGS PER SHARE COMPUTATION (Details Narrative) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Earnings Per Share Computation Details Narrative        
Weighted average common shares outstanding 5,823,345 6,299,914 5,886,977 6,402,647
Dilutive effect of stock based awards 41,482 66,118 38,700 78,922
Antidilutive stock option excluded from earnings per share 0 32,448 0 32,448