Notes Payable - Additional Information (Detail)				1 Months Ended						3 Months Ended	9 Months Ended		12 Months Ended
	Aug. 15, 2018 USD ($)	Jan. 31, 2018 USD ($) $ / shares shares	Dec. 22, 2016 USD ($)	Oct. 31, 2018 USD ($)	Sep. 30, 2018 USD ($) PromissoryNote $ / shares	Aug. 31, 2018 USD ($)	Jul. 31, 2018 USD ($) Payment	Apr. 30, 2018 USD ($)	Feb. 28, 2018	Sep. 30, 2018 USD ($) $ / shares	Sep. 30, 2018 USD ($) $ / shares	Sep. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)	Nov. 30, 2018 USD ($)	Jun. 01, 2018 $ / shares shares	Oct. 31, 2017
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	$ 0
Unamortized discount		$ 271,000			$ 60,000					$ 60,000	$ 60,000		$ 26,000
Notes payable, outstanding amount					$ 6,107,000					$ 6,107,000	$ 6,107,000		8,940,000
Convertible notes converted into shares of common stock | shares		570,287
Warrants exercisable into shares of common stock | shares		570,287													1,183,116
Exercise price of warrants, per share | $ / shares		$ 9.15			$ 3.66					$ 3.66	$ 3.66				$ 3.02
Debt value					$ 400,000					$ 400,000	$ 400,000		3,756,000
Amortization period of interest expense		3 years
Aggregate principal amount of converted notes to common stock											8,180,000
Accretion of discount											(461,000)	$ (194,000)
Notes payable, amount repaid											2,014,000	$ 2,998,000
Notes payable					3,059,000					3,059,000	3,059,000		$ 3,374,000
Convertible Notes and Warrants [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount	275,000
Notes payable, interest rate		0.00%
Convertible notes amount		$ 1,000,000
Convertible notes term		3 years
Warrants value		$ 127,000
Conversion feature value		144,000
Debt value		$ 729,000
Aggregate principal amount of converted notes to common stock	725,000
Accretion of discount											39,000
Convertible Notes and Warrants [Member] | Interest Expense [Member]
Debt Instrument [Line Items]
Gain (loss) on extinguishment of debt	163,000
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Price Volatility [Member]
Debt Instrument [Line Items]
Fair value assumption		105
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Risk Free Interest Rate [Member]
Debt Instrument [Line Items]
Fair value assumption		2.20
Warrants [Member] | Valuation Technique, Option Pricing Model [Member] | Measurement Input, Entity Credit Risk [Member]
Debt Instrument [Line Items]
Fair value assumption		7.70
0% Convertible Notes Due January 2021 [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 275,000					$ 275,000	$ 275,000
0% Convertible Notes Due January 2021 [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Unamortized discount	163,000
Notes payable, outstanding amount	$ 725,000
Notes payable, interest rate	0.00%				0.00%					0.00%	0.00%		0.00%
Notes payable, maturity date											Jan. 31, 2021		Jan. 31, 2021
8% Convertibe Promissory Note [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate			8.00%
Notes payable, issued amount			$ 250,000
Notes payable, maturity date			Jun. 22, 2017
Minimum gross proceeds from qualified financing			$ 2,000,000
Notes payable, extended maturity date									Mar. 31, 2019
8% Secured Promissory Notes [Member] | OneClick Acquisitions [Member]
Debt Instrument [Line Items]
Notes payable, interest rate																8.00%
Notes payable repayment month year											2018-11
0% Promissory Notes Due May 2018 In Default [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 218,000					$ 218,000	$ 218,000		$ 261,000
0% Promissory Notes Due May 2018 In Default [Member] | OneClick Acquisitions [Member]
Debt Instrument [Line Items]
Notes payable, interest rate																0.00%
Notes payable repayment month year											2018-11
0% Promissory Notes Due May 2018 In Default [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate					0.00%					0.00%	0.00%		0.00%
Notes payable, maturity date											May 31, 2018		May 31, 2018
4.02% Promissory Note Due April 2021 [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate								4.02%
Notes payable, issued amount								$ 1,000,000
Notes payable, maturity date								Apr. 30, 2021
Annual principal payments,2018								$ 159,000
Annual principal payments,2019								296,000
Annual principal payments,2020								359,000
Annual principal payments,2021								$ 186,000
0% Promissory Note Due November 2018 [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 789,000					$ 789,000	$ 789,000
0% Promissory Note Due November 2018 [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 789,000					$ 789,000	$ 789,000
Notes payable, interest rate					0.00%					0.00%	0.00%		0.00%
Notes payable, issued amount							$ 1,439,000
Notes payable, maturity date											Nov. 30, 2018		Nov. 30, 2018
Number of specified payments | Payment							5
Notes payable, amount repaid										$ 650,000
0% Promissory Note Due November 2018 [Member] | Notes Payable [Member] | Subsequent Events [Member]
Debt Instrument [Line Items]
Notes payable				$ 350,000										$ 389,000
0% Promissory Note Due April 2019 [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 868,000					$ 868,000	$ 868,000
0% Promissory Note Due April 2019 [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate					0.00%					0.00%	0.00%		0.00%
Notes payable, maturity date											Apr. 30, 2019		Apr. 30, 2019
0% Promissory Note Due April 2019 [Member] | Notes Payable [Member] | Unitron Assets [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount						$ 418,000
Notes payable, interest rate						0.00%
Notes payable, maturity date						Apr. 30, 2019
Assumption of debt under merger consideration						$ 868,000
Notes payable, maturity date, description						$450,000 paid in October 2018 and $418,000 due in April 2019
0% Promissory Note Due October 2018 [Member] | Notes Payable [Member] | Unitron Assets [Member]
Debt Instrument [Line Items]
Notes payable, interest rate						0.00%
Notes payable, maturity date						Oct. 31, 2018
0% Promissory Note Due October 2018 [Member] | Notes Payable [Member] | Subsequent Events [Member] | Unitron Assets [Member]
Debt Instrument [Line Items]
Notes payable, amount repaid				$ 450,000
8% Promissory Note Due March 2021 [Member]
Debt Instrument [Line Items]
Notes payable, outstanding amount					$ 2,107,000					$ 2,107,000	$ 2,107,000
8% Promissory Note Due March 2021 [Member] | Notes Payable [Member]
Debt Instrument [Line Items]
Notes payable, interest rate					8.00%					8.00%	8.00%		8.00%
Notes payable, issued amount					$ 2,107,000					$ 2,107,000	$ 2,107,000
Notes payable, maturity date											Mar. 31, 2021		Mar. 31, 2021
Number of promissory notes | PromissoryNote					12