Annual report pursuant to Section 13 and 15(d)

VALUATION AND QUALIFYING ACCOUNTS (Details)

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VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Allowance for Deferred Tax Asset [Member]      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning balance $ 376,037 $ 376,037 $ 446,919
Charged (credited) to earnings 0 0 (122,500)
Deductions 0 0 51,618
Ending balance 376,037 376,037 376,037
Allowance for Doubtful Accounts [Member]      
Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning balance 210,000 210,000 210,000
Charged (credited) to earnings 183,339 0 0
Deductions (93,339) 0 0
Ending balance $ 210,000 $ 210,000 $ 210,000