Supplemental Balance Sheet Disclosures (Tables)

3 Months Ended

Dec. 31, 2018

Supplemental Balance Sheet Disclosures

Schedule of inventories

	December 31,		September 30,
	2018		2018
Raw materials	$	3,153,742	$	2,892,366
Work-in-process		716,059		817,051
Finished goods		426,187		570,691
	$	4,295,988	$	4,280,108

Schedule of prepaid expenses and other current assets

	December 31,		September 30,
	2018		2018
Prepaid insurance	$	376,586	$	258,015
Income tax refund receivable		2,056		1,578
Other		251,689		284,641
	$	630,331	$	544,234

Schedule of property and equipment, net

	December 31,		September 30,
	2018		2018
Land	$	1,021,245	$	2,268,969
Computer equipment		2,273,709		5,601,039
Corporate airplanes		5,601,039		1,033,779
Furniture and office equipment		1,033,779		5,733,313
Manufacturing facility		5,733,313		5,580,083
Equipment		5,615,118		1,021,245
		21,278,203		21,238,428
Less: accumulated depreciation and amortization		(12,558,954)		(12,451,691)
	$	8,719,249	$	8,786,737

Schedule of other assets

	December 31,		September 30,
	2018		2018
Intangible assets, net of accumulated amortization of $538,837 and $531,637 at December 31, 2018 and September 30, 2018, respectively	$	61,400	$	68,600
Other non-current assets		111,778		113,393
	$	173,178	$	181,993

Schedule of accrued expenses

	December 31,		September 30,
	2018		2018
Warranty	$	837,317	$	854,952
Salary, benefits and payroll taxes		314,563		143,183
Professional fees		271,204		203,823
Other		326,604		261,063
	$	1,749,688	$	1,463,021

Schedule of warranty cost and accrual information

	Three Months Ending
	December 31, 2018
Warranty accrual, beginning of period	$	854,952
Accrued expense		2,600
Warranty cost		(20,235)
Warranty accrual, end of period	$	837,317