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10 - NET INCOME(LOSS) PER SHARE (Details) - Schedule of Earnings Per Share, Basic and Diluted - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Schedule of Earnings Per Share, Basic and Diluted [Abstract]    
Net income available to common shareholders used in basic and diluted income per share (in Dollars) $ 1,378,000 $ 701,000
Weighted average number of common shares used in basic income per share (Class A and B shares) 5,597,555 5,550,847
Basic income per share (Class A and B shares) (in Dollars per share) $ 0.25 $ 0.13
Effect of dilutive securities:    
Options 109,000 94,000
Weighted average number of common shares and dilutive potential common shares used in diluted income per share (Class A and B shares) 5,706,555 5,644,847
Diluted income per share (in Dollars per share) $ 0.24 $ 0.12