Valuation And Qualifying Accounts

12 Months Ended

Dec. 31, 2015

Valuation And Qualifying Accounts [Abstract]

Valuation And Qualifying Accounts

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

FOR THE YEARS ENDED DECEMBER 31, 2015 AND 2014

			Additions
	Balance at		Charged to
	Beginning of		Cost and				Balance at the
	Year		Expenses		Deductions		End of Year
Allowance for doubtful accounts and returns:
Year ended December 31, 2015	$	131,464	$	(9,463)	$	(28,523)	$	93,478
Year ended December 31, 2014	$	383,077	$	48,742	$	(300,355)	$	131,464
Allowance for inventories valuation:
Year ended December 31, 2015	$	59,634	$	42,258	$	(81,921)	$	19,971
Year ended December 31, 2014	$	80,213	$	6,970	$	(27,549)	$	59,634