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Recent Accounting Pronouncements (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Oct. 01, 2018
Deferred Revenue, Revenue Recognized	$ 115,000
Impact of Restatement on Opening Retained Earnings, Net of Tax				$ 22,000
Revenue, Performance Obligation, Description of Payment Terms	cost-plus contracts, the customer generally pays during the performance period for 80%-90% of the actual costs incurred.
Innovation and Development Segment [Member]
Revenue, Remaining Performance Obligation, Amount	$ 33,300,000
Optics [Member]
Revenue, Remaining Performance Obligation, Amount	$ 4,000,000
Scenario, Forecast [Member] \| Innovation and Development Segment [Member]
Revenue, Remaining Performance Obligation, Percentage		25.00%	61.00%
Scenario, Forecast [Member] \| Optics [Member]
Revenue, Remaining Performance Obligation, Percentage		4.00%	96.00%