Acquisition of MediaMission Holding B.V. - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		0 Months Ended	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Dec. 16, 2013	Dec. 31, 2014	Sep. 30, 2014
Business Acquisition [Line Items]
Subordinated note payable issuance for purchase of MediaMission				$ 2,567,000
Common stock issued for purchase of MediaMission				2,306,000
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)
MediaMission Holding B.V. [Member]
Business Acquisition [Line Items]
Total purchase price					1,493,000
Common stock issued for purchase of MediaMission					348,000
Business acquisition, cash paid					458,000
Business acquisition, number of shares issued					37,608
Ownership percentage					100.00%
Goodwill					932,000
Amortization period for customer relationship intangible						10 years
Contributed revenue	155,000	136,000	392,000	227,000
Net income (loss) for acquisition period	(75,000)	(240,000)	(198,000)	(197,000)
MediaMission Holding B.V. [Member] | Income Approach Valuation Technique [Member]
Business Acquisition [Line Items]
Fair value assumptions discount rate					28.00%
Estimated effective tax rate					20.00%
Estimated customer attrition rate					15.00%
MediaMission Holding B.V. [Member] | Subordinated Note Payable [Member]
Business Acquisition [Line Items]
Subordinated note payable issuance for purchase of MediaMission					$ 687,000
Notes payable interest rate					6.50%
Subordinated note payable maturity period					3 years