Supplemental Balance Sheet Disclosures (Tables)

6 Months Ended

Mar. 31, 2013

Supplemental Balance Sheet Disclosures

Schedule of inventories

	March 31,		September 30,
	2013		2012
Raw materials	$	2,761,521	$	2,752,833
Work-in-process	860,724		555,495
Finished goods	289,886		493,219
	$	3,912,131	$	3,801,547

Schedule of prepaid expenses and other current assets

	March 31,		September 30,
	2013		2012
Revenue recognized not yet invoiced	$	4,001,505	$	1,595,436
Prepaid insurance	192,975		176,340
Other	210,693		259,868
	$	4,405,173	$	2,031,644

Schedule of property and equipment, net

	March 31,			September 30,
	2013			2012
Computer equipment	$	2,203,457		$	2,090,556
Corporate airplane	3,104,255			3,082,186
Furniture and office equipment	1,076,849			1,076,849
Manufacturing facility	5,616,422			5,605,616
Equipment	4,385,927			4,378,714
Land	1,021,245			1,021,245
	17,408,155			17,255,166
Less: Accumulated depreciation and amortization	(10,257,401		)	(10,040,788		)
	$	7,150,754		$	7,214,378

Schedule of other assets

	March 31,		September 30,
	2013		2012
Intangible assets, net of accumulated amortization of $470,437 and $441,637 at March 31, 2013 and September 30, 2012, respectively	$	129,800	$	158,600

Schedule of accrued expenses

	March 31,		September 30,
	2013		2012
Warranty	$	744,722	$	850,499
Salary, benefits and payroll taxes	598,501		531,862
Professional fees	411,091		330,858
Income taxes payable	326,568		132,980
Materials on order	125,266		43,374
Other	607,794		834,239
	$	2,813,942	$	2,723,812

Schedule of warranty cost and accrual information

	Three Months Ending			Six Months Ending
	March 31, 2013			March 31, 2013
Warranty accrual, beginning of period	$	799,748		$	850,499
Accrued expense for the three and six months ended March 31, 2013	(11,886		)	(24,817		)
Warranty cost for the three and six months ended March 31, 2013	(43,140		)	(80,960		)
Warranty accrual, end of period	$	744,722		$	744,722