XML 30 R19.htm IDEA: XBRL DOCUMENT v3.10.0.1
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
May 01, 2018
Jun. 30, 2018
USD ($)
item
Dec. 31, 2017
USD ($)
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES      
Common stock dividend declared, percentage of shares outstanding 5.00%    
Common stock dividend declared, ratio 0.05    
Number of notes receivable | item   1  
Allowance for doubtful accounts | $   $ 250,000 $ 250,000