Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)		3 Months Ended		12 Months Ended
	Dec. 22, 2014 USD ($) Individual $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($)	Sep. 30, 2015 USD ($)
Basis of Presentation and Significant Accounting Policies [Line Items]
Estimated economic life of the product		3 years
Total amortization expense of software development costs		$ 45,000	$ 45,000
Capitalized internal and external development costs, gross		$ 533,000		$ 533,000
Legal contingency settlement terms		The key terms of the agreement were 1) a grant of a non-revocable license of Astute patents to the Company; 2) a grant of a fully paid, non-refundable license of certain Sonic Foundry patents to Astute; 3) both Astute and our customer agreed to identify three meetings they currently capture that the other party will not seek or respond to any request for proposal; and 4) a payment of $1.35 million to Astute.
Legal contingencies amount		$ 0	0
Weighted average grant date fair value of options granted (in usd per share) | $ / shares		$ 2.79
Unrecognized non vested stock based compensation		$ 959,000
Estimated forfeitures for unrecognized non vested stock based compensation		$ 759,000
Expected weighted average life of forfeited cost		2 years 9 months 25 days
Stock-based compensation		$ 334,000	317,000
Tax benefits realized for tax deductions from option exercises		$ 0	0
Expected shares issued | shares		150,000
Shares available to issue | shares		31,516
Stock-based compensation		$ 7,000	6,000
Selling and Marketing Expenses
Basis of Presentation and Significant Accounting Policies [Line Items]
Stock-based compensation		205,000	196,000
General and Administrative Expenses
Basis of Presentation and Significant Accounting Policies [Line Items]
Stock-based compensation		36,000	84,000
Product Development Expenses
Basis of Presentation and Significant Accounting Policies [Line Items]
Stock-based compensation		$ 93,000	$ 37,000
Warrant
Basis of Presentation and Significant Accounting Policies [Line Items]
Warrants issued to individuals (in shares) | shares	74,802
Number of individual issued warrants | Individual	2
Warrants expiration period	5 years
Exercise price of warrant (in usd per share) | $ / shares	$ 14.00
Remaining contractual life of warrants outstanding		3 years 11 months 23 days
Fair value of warrants	$ 133,000