Supplemental Balance Sheet Disclosures (Details) (USD $)	3 Months Ended	9 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Sep. 30, 2013
Supplemental Balance Sheet Disclosures
Unbilled receivables, net of customer payments	$ 11,340,583		$ 11,340,583		$ 6,539,442
Inventories
Raw materials	4,609,075		4,609,075		3,126,592
Work-in-process	1,111,548		1,111,548		857,602
Finished goods	152,264		152,264		393,319
Inventory	5,872,887		5,872,887		4,377,513
Prepaid expenses and other current assets
Prepaid insurance	394,398		394,398		350,913
Other	324,632		324,632		291,297
Total	719,030		719,030		642,210
Unbilled receivables
Change in operating income resulting from revised estimates	(659,901)	(285,500)	(3,158,163)	(1,880,925)
Contracts Accounted For Under Percentage Of Completion [Member]
Unbilled receivables
Change in operating income resulting from revised estimates	$ 559,000	$ 161,000	$ 1,172,000	$ 364,000

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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