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Supplemental Balance Sheet Disclosures (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2015	Sep. 30, 2014
Unbilled receivables
Change in operating income resulting from revised estimates	$ (308,733)	$ 166,315
Unbilled receivables, net	2,686,324		$ 3,920,209
Inventories valuation
Raw materials	3,626,433		3,346,778
Work-in-process	635,826		745,311
Finished goods	261,651		505,227
Inventory, Net, Total	4,523,910		4,597,316
Prepaid expenses and other current assets
Prepaid insurance	127,902		290,543
Income tax refund receivable	440,729		386,869
Other	359,713		544,305
Total	928,344		1,221,717
Delta
Unbilled receivables
Provision for loss on unbilled receivables			3,600,000
Unbilled receivables, net				$ 3,600,000
Inventories valuation
Inventory, Net, Total				$ 200,000
A Certain Customer
Unbilled receivables
Provision for loss on unbilled receivables	1,300,000
Contracts accounted for under percentage of completion
Unbilled receivables
Change in operating income resulting from revised estimates	$ (46,000)		$ (366,000)

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