Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2014

Intangible Assets [Abstract]

Schedule of Carrying Value of Intangible Assets

The following table sets forth the carrying value of intangible assets :

(in thousands)	As of December 31, 2014							As of September 30, 2014
	Gross Assets		Accumulated Amortization			Net Assets		Gross Assets		Accumulated Amortization			Net Assets
Fiber Optics:
Patents	4,697		(4,621		)	76		4,697		(4,615		)	82
Total	$	4,697	$	(4,621	)	$	76	$	4,697	$	(4,615	)	$	82

Schedule of Estimated Future Amortization Expense

Based on the carrying amount of our intangible assets as of December 31, 2014, the estimated future amortization expense is as follows:

Estimated Future Amortization Expense
(in thousands)
Nine months ended September 30, 2015	$	18
Fiscal year ended September 30, 2016	25
Fiscal year ended September 30, 2017	33
Fiscal year ended September 30, 2018	—
Fiscal year ended September 30, 2019 and thereafter	—
Total	$	76