Schedule II - Valuation and Qualifying Accounts

12 Months Ended

Mar. 31, 2013

Schedule II - Valuation and Qualifying Accounts [Abstract]

Schedule II - Valuation and Qualifying Accounts

Schedule II: Valuation and Qualifying Accounts

For the fiscal years ended:

	2013			2012			2011
Allowance for doubtful accounts:
Balance, beginning of period	$	998,800		$	1,616,500		$	1,516,600
Provision for bad debts		1,197,300			458,700			1,050,500
Write-offs and other adjustments		(921,400	)		(1,076,400	)		(950,600	)
Balance, end of period	$	1,274,700		$	998,800		$	1,616,500

	2013			2012			2011
Inventory Reserve:
Balance, beginning of period	$	3,268,900		$	4,183,200		$	3,461,700
Inventory reserve expense		2,581,200			3,494,800			4,759,000
Write-offs and other adjustments		(2,513,400	)		(4,409,100	)		(4,037,500	)
Balance, end of period	$	3,336,700		$	3,268,900		$	4,183,200