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14. Share RepurchaseProgram (Detail Narrative) - USD ($)
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Number of shares authorized to be repurchased 250,000  
Amount of shares authorized to be repurchased $ 3,500,000  
Amount remaining available under the repurchase plan 1,220,000  
Stock repurchased during period, amount $ 738,000 $ 1,542,000
Treasury Stock, Common [Member]    
Stock repurchased during period, shares 69,000 136,000
Stock repurchased during period, amount $ 738,000 $ 1,542,000