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CONSOLIDATED BALANCE SHEETS PARENTHETICALS - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Parentheticals    
Allowance for doubtful accounts on trade accounts receivable $ 29,598,703 $ 28,644,398
Allowance for doubtful accounts on other receivables 78,558 74,400
Allowance for obsolescence of inventory 6,696,224 8,417,095
Accumulated depreciation on Property and equipment 10,286,937 9,442,912
Accumulated amortization on Intangible assets $ 4,456,837 $ 4,360,004
Preferred stock, par value $ 0.001 $ 0.001
Preferred stock, shares authorized 5,000,000 5,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 95,000,000 95,000,000
Common stock, shares issued 43,579,557 43,579,557
Common stock, shares outstanding 43,579,557 43,579,557