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ACCOUNTS RECEIVABLE AND ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts receivable $ 9,265,000 $ 8,559,000
Allowance for doubtful accounts (84,000) (82,000)
Accounts Receivable, Net, Current, Total $ 9,181,000 $ 8,477,000