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Consolidated Statements of Shareholders' Equity - USD ($)
Common Class A [Member]
Common Stock [Member]
Common Class A [Member]
Common Class B [Member]
Common Stock [Member]
Common Class B [Member]
Additional Paid-in Capital [Member]
AOCI Attributable to Parent [Member]
Retained Earnings [Member]
Noncontrolling Interest [Member]
Total
Balance at Dec. 31, 2014 $ 5,000   $ 1,000   $ 10,684,000 $ 158,000 $ 4,832,000 $ 110,000 $ 15,790,000
Balance (in Shares) at Dec. 31, 2014 4,777,144   762,612            
Net loss             (587,000)   (587,000)
Foreign currency translation adjustment           1,000     1,000
Amortization of stock based compensation         16,000       16,000
Stock repurchasing         (8,000)       (8,000)
Stock repurchasing (in Shares) (8,909)                
Noncontrolling interest in subsidary               (6,000) (6,000)
Balance at Dec. 31, 2015 $ 5,000   $ 1,000   10,692,000 159,000 4,245,000 104,000 15,206,000
Balance (in Shares) at Dec. 31, 2015 4,768,235 4,768,235 762,612 762,612          
Net loss             (3,111,000)   (3,111,000)
Foreign currency translation adjustment           (3,000)     (3,000)
Amortization of stock based compensation         9,000       9,000
Cash dividends             (414,000)   (414,000)
Noncontrolling interest in subsidary                 0
Balance at Dec. 31, 2016 $ 5,000   $ 1,000   $ 10,701,000 $ 156,000 $ 720,000 $ 104,000 $ 11,687,000
Balance (in Shares) at Dec. 31, 2016 4,768,235 4,768,235 762,612 762,612