Acquisition of MSKK - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Jan. 14, 2014	Sep. 30, 2014
Business Acquisition [Line Items]
Goodwill	$ 10,828,000		$ 10,828,000			$ 11,185,000
Contributed revenue	8,106,000	8,878,000	16,847,000	16,084,000
Net income (loss) for acquisition period	(1,350,000)	(871,000)	(2,382,000)	(1,561,000)
Mediasite KK [Member]
Business Acquisition [Line Items]
Total purchase price					5,721,000
Business acquisition, cash paid					1,900,000
Business acquisition, number of shares issued					189,222
Percentage of minority interest					26.00%
Non cash gain		1,400,000
Tax expense associated with non cash gain		901,000		901,000
Goodwill					2,900,000
Amortization period for customer relationship intangible			10 years
Contributed revenue	1,700,000	2,200,000	2,700,000
Net income (loss) for acquisition period	$ 313,000	$ 300,000	$ 100,000
Mediasite KK [Member] | Income Approach Valuation Technique [Member]
Business Acquisition [Line Items]
Fair value assumptions discount rate					30.00%
Estimated effective tax rate					35.50%
Estimated customer attrition rate					15.00%
Mediasite KK [Member] | Subordinated Note Payable [Member]
Business Acquisition [Line Items]
Notes payable interest rate					5.00%
Subordinated note payable maturity period					1 year