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CONTRACT ASSETS AND CONTRACT LIABILITIES (Tables)
 3 Months Ended
Mar. 31, 2018
Contract Assets and Contract Liabilities [Abstract]  
Contract with Customer, Asset and Liability [Table Text Block]
Net contract assets (liabilities) consisted of the following:
 
March 31, 2018
 
December 30, 2017
 
$ Change
 
% Change
Contract assets—current
$
2,479,062

 
$
704,863

 
$
1,774,199

 
252
 %
Contract assets—noncurrent
400,000

 
—

 
400,000

 
—
 %
Contract liabilities—current
(384,073
)
 
(896,479
)
 
512,406

 
(57
)%
Contract liabilities—noncurrent
(262,207
)
 
(374,171
)
 
111,964

 
(30
)%
Net contract assets (liabilities)
$
2,232,782

 
$
(565,787
)
 
$
2,798,569

 
(495
)%