Expiration date of warrants held.

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Related Party Transactions - Additional Information (Detail) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014	Dec. 22, 2014 Individual	Sep. 30, 2014	Dec. 18, 2014
Related Party Transaction [Line Items]
Fees incurred to law firm	$ 42	$ 59	$ 76	$ 149
Accrued liabilities for unbilled services	20		20			30
Outstanding loan amount	26		26			26
Common stock, shares issued	4,363,919us-gaap_CommonStockSharesIssued		4,363,919us-gaap_CommonStockSharesIssued			4,276,470us-gaap_CommonStockSharesIssued
Common stock restriction period			2 years
Common Stock [Member]
Related Party Transaction [Line Items]
Common stock price per share					$ 7.68		$ 8.36
Number of days to calculate average price of common stock			20 days
Warrant [Member]
Related Party Transaction [Line Items]
Number of individual issued warrants					2
Warrants issued to individuals					74,802
Warrants exercise price					$ 14.00
Warrants expiration date					Dec. 22, 2019
Board of Directors Chairman [Member] \| Common Stock [Member]
Related Party Transaction [Line Items]
Common stock, shares issued					35,905
Board of Directors Chairman [Member] \| Warrant [Member]
Related Party Transaction [Line Items]
Warrants issued to individuals					35,905
Majority Shareholder [Member] \| Common Stock [Member]
Related Party Transaction [Line Items]
Common stock, shares issued					38,897
Majority Shareholder [Member] \| Warrant [Member]
Related Party Transaction [Line Items]
Warrants issued to individuals					38,897
MediaMission Holding B.V. [Member]
Related Party Transaction [Line Items]
Amount payable, total	$ 167		$ 167			$ 370