Schedule of pro forma financial information


	October 31,		October 31,
	2019		2018

Revenue	$	59,250	$	58,658
Net income		3,370		5,419

Earnings per share
Basic	$	0.36	$	0.60
Diluted	$	0.34	$	0.56

XML 20 R28.htm IDEA: XBRL DOCUMENT

Accrued expenses and other long-term liabilities (Tables)

12 Months Ended

Oct. 31, 2019

Accrued expenses and other long-term liabilities

Accrued expenses

Accrued expenses consist of the following (in thousands):


	2019		2018

Wages payable	$	1,591	$	1,705
Accrued receipts		1,683		1,271
Other current liabilities		379		401

Totals	$	3,653	$	3,377

XML 22 R39.htm IDEA: XBRL DOCUMENT

Business Acquisition - Additional Information (Details) - USD ($)		12 Months Ended
	Mar. 15, 2019	Oct. 31, 2019	Oct. 31, 2018
Revenues		$ 55,325,000	$ 50,196,000
C Enterprises Inc [Member]
Payments to Acquire Businesses, Gross	$ 600,000
Revenues		$ 7,200,000
Selling And General Expenses [Member] \| C Enterprises Inc [Member]
Business Combination, Acquisition Related Costs	$ 100,000

XML 24 R35.htm IDEA: XBRL DOCUMENT

Business activities and summary of significant accounting policies - Estimated amortization expense related to finite lived intangible assets (Detail) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Business activities and summary of significant accounting policies
2020	$ 275
2021	136
2022	89
2023	79
2024	79
Thereafter	434
Total	$ 1,092	$ 1,367

XML 25 R31.htm IDEA: XBRL DOCUMENT

Stock options (Tables)

12 Months Ended

Oct. 31, 2019

Stock options

Computation of Weighted Average Fair Value of Employee Stock Options using Black-Scholes Option Pricing Model Assumptions

The fair value of each option granted in 2019 and 2018 was estimated on the grant date using the Black-Scholes option pricing model with the following assumptions:


	2019			2018
Weighted average volatility		55.42	%		46.83	%
Expected dividends		0.98	%		3.28	%
Expected term (in years)		5.9			4.5
Risk-free interest rate		2.86	%		1.87	%
Weighted average fair value of options granted during the year	$	3.98		$	0.82
Weighted average fair value of options vested during the year	$	6.03		$	2.64

Summary of Status of Options Granted under Stock Option Plans and Changes in Options Outstanding

Additional information regarding all of the Company’s outstanding stock options at October 31, 2019 and 2018 and changes in outstanding stock options in 2019 and 2018 follows:


	2019				2018
	Shares or		Weighted		Shares or		Weighted
	Price Per		Average		Price Per		Average
	Share		Exercise Price		Share		Exercise Price
Outstanding at beginning of year		942,366	$	3.09		1,159,771	$	3.19
Options granted		124,097	$	8.16		269,635	$	2.44
Options exercised		(171,066)	$	3.86		(418,955)	$	2.66
Options canceled or expired		(5,250)	$	6.82		(68,085)	$	4.98
Options outstanding at end of year		890,147	$	3.62		942,366	$	3.09

Options exercisable at end of year		599,981	$	3.25		675,033	$	3.01

Options vested and expected to vest at end of year		889,088	$	3.63		940,144	$	3.09

Option price range at end of year		$1.90 - $8.69		—		$1.90 - $5.88

Aggregate intrinsic value of options exercised during year	$	317,827		—	$	1,207,148

XML 26 R1.htm IDEA: XBRL DOCUMENT

Document and Entity Information - USD ($) $ in Millions	12 Months Ended
Document and Entity Information - USD ($) $ in Millions	Oct. 31, 2019	Dec. 13, 2019	Apr. 30, 2019
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Entity Registrant Name	R F INDUSTRIES LTD
Entity Central Index Key	0000740664
Current Fiscal Year End Date	--10-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float			$ 47.1
Trading Symbol	RFIL
Entity Common Stock, Shares Outstanding		9,614,617
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Small Business	true

XML 27 R5.htm IDEA: XBRL DOCUMENT

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid-in Capital	Retained Earnings	Total
Balance at Oct. 31, 2017	$ 89	$ 19,654	$ 1,600	$ 21,343
Balance (in shares) at Oct. 31, 2017	8,872,246
Exercise of stock options	$ 4	1,109	0	1,113
Exercise of stock options (in shares)	418,955
Stock-based compensation expense	$ 0	211	0	211
Dividends	0	0	(730)	(730)
Net Income	0	0	5,846	5,846
Balance at Oct. 31, 2018	$ 93	20,974	6,716	27,783
Balance (in shares) at Oct. 31, 2018	9,291,201
Exercise of stock options	$ 2	658	0	660
Exercise of stock options (in shares)	171,066
Stock-based compensation expense	$ 0	317	0	317
Dividends	0	0	(748)	(748)
Net Income	0	0	3,521	3,521
Balance at Oct. 31, 2019	$ 95	$ 21,949	$ 9,489	$ 31,533
Balance (in shares) at Oct. 31, 2019	9,462,267

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

XML 28 R12.htm IDEA: XBRL DOCUMENT

Other current assets

12 Months Ended

Oct. 31, 2019

Other current assets

Other current assets

Note 6 - Other current assets

Other current assets consist of the following (in thousands):


	2019		2018

Prepaid taxes	$	—	$	335
Prepaid expense		346		228
Notes receivable, current portion		—		20
Other		339		245

Totals	$	685	$	828

XML 29 R9.htm IDEA: XBRL DOCUMENT

Discontinued operations

12 Months Ended

Oct. 31, 2019

Discontinued operations

Note 3 - Discontinued operations


	2018
Major line items constituting pretax income from discontinued operations:
Net sales	$	8,343
Cost of sales		(6,199)
Gross profit		2,144
Selling, general and administrative expense		(1,569)
Pretax income from discontinued operations		575
Pretax loss on sale of Comnet		(796)
Total pretax income (loss) from discontinued operations		(221)
Provision (benefit) for income taxes		(41)
Income (loss) from discontinued operations	$	(180)

XML 30 R16.htm IDEA: XBRL DOCUMENT

Stock options

12 Months Ended

Oct. 31, 2019

Stock options

Stock options

Note 10 - Stock options

Incentive and non-qualified stock option plans

Additional disclosures related to stock option plans

The fair value of each option granted in 2019 and 2018 was estimated on the grant date using the Black-Scholes option pricing model with the following assumptions:


	2019			2018
Weighted average volatility		55.42	%		46.83	%
Expected dividends		0.98	%		3.28	%
Expected term (in years)		5.9			4.5
Risk-free interest rate		2.86	%		1.87	%
Weighted average fair value of options granted during the year	$	3.98		$	0.82
Weighted average fair value of options vested during the year	$	6.03		$	2.64

Additional information regarding all of the Company’s outstanding stock options at October 31, 2019 and 2018 and changes in outstanding stock options in 2019 and 2018 follows:


	2019				2018
	Shares or		Weighted		Shares or		Weighted
	Price Per		Average		Price Per		Average
	Share		Exercise Price		Share		Exercise Price
Outstanding at beginning of year		942,366	$	3.09		1,159,771	$	3.19
Options granted		124,097	$	8.16		269,635	$	2.44
Options exercised		(171,066)	$	3.86		(418,955)	$	2.66
Options canceled or expired		(5,250)	$	6.82		(68,085)	$	4.98
Options outstanding at end of year		890,147	$	3.62		942,366	$	3.09

Options exercisable at end of year		599,981	$	3.25		675,033	$	3.01

Options vested and expected to vest at end of year		889,088	$	3.63		940,144	$	3.09

Option price range at end of year		$1.90 - $8.69		—		$1.90 - $5.88

Aggregate intrinsic value of options exercised during year	$	317,827		—	$	1,207,148

Weighted average remaining contractual life of options outstanding as of October 31, 2019: 4.16 years

Weighted average remaining contractual life of options exercisable as of October 31, 2019: 2.62 years

Weighted average remaining contractual life of options vested and expected to vest as of October 31, 2019: 4.15 years

Aggregate intrinsic value of options outstanding at October 31, 2019: $2,340,000

Aggregate intrinsic value of options exercisable at October 31, 2019: $1,735,000

Aggregate intrinsic value of options vested and expected to vest at October 31, 2019: $2,330,000

XML 31 R50.htm IDEA: XBRL DOCUMENT

Income tax provision - (Components Of Income Tax Expense Benefit) (Detail) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Income tax provision
Continuing operations	$ 1,036,000	$ 1,468,000
Discontinued operations	0	(41,000)
Net income	$ 1,036,000	$ 1,427,000

Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

Summary of Reconciliation Provision (Benefit) for Income taxes

XML 32 R54.htm IDEA: XBRL DOCUMENT

Income tax provision (Summary Of Income Tax Contingencies) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Income tax provision
Unrecognized Tax Benefits, Beginning Balance	$ 59	$ 0
Increase for tax positions related to the current year	23	24
Increase for tax positions related to prior years	3	29
Increase for interest and penalties	2	6
Statute of Limitations Expirations	(7)	0
Unrecognized Tax Benefits, Ending Balance	$ 80	$ 59

XML 33 R58.htm IDEA: XBRL DOCUMENT

Stock options - Additional Information (Detail) - USD ($)									3 Months Ended	12 Months Ended
	Jun. 07, 2019	Mar. 08, 2019	Dec. 03, 2018	Dec. 13, 2017	Dec. 13, 2017	Sep. 08, 2017	Sep. 04, 2015	Sep. 05, 2014	Jan. 31, 2019	Oct. 31, 2019	Oct. 31, 2018	Nov. 01, 2018	Mar. 09, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining life of options outstanding										4 years 1 month 28 days
Weighted average remaining contractual life of options exercisable										2 years 7 months 13 days
Weighted average life of options vested and expected to vest										4 years 1 month 24 days
Aggregate intrinsic value of options outstanding										$ 2,340,000
Aggregate intrinsic value of options exercisable										1,735,000
Aggregate intrinsic value of options vested and expected to vest										2,330,000
Non-vested stock-based arrangements yet to be recognized										$ 439,000
Stock based arrangements yet to be recognized, weighted average period expected to be recognized										5 years 3 months
Share-based compensation arrangement by share-based payment award, options, grants in period, gross									7,203
Non-employee director annual grant										$ 50,000
Fair value of stock option per share										$ 3.471
Stock based compensation expense										$ 317,000	$ 211,000
Share Based Goods And Non Employee Services Transaction Value Of Stock Option Issued										$ 25,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized													1,000,000
Nonqualified Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value of stock option per share	$ 3.245
Share Based Goods And Non Employee Services Transaction Value Of Stock Option Issued	$ 10,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period										5 years
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 7.50								$ 8.07
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued	3,082
Nonqualified Plan [Member] \| Board of Directors Chairman [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount Payable Annually for Services Rendered												$ 15,000
Incentive stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross					80,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares				8,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights				8,000
Incentive stock options \| One Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross		25,000	10,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares		5,000	2,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights		5,000	2,000
Incentive stock options \| Two Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross			25,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares			5,000
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights			5,000
Incentive stock options \| Nonqualified Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period				10 years
2010 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant										1,405,741
Incentive and Non-Qualified Stock Option Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additiona shares of common stock issued						1,000,000	500,000	500,000

XML 34 R34.htm IDEA: XBRL DOCUMENT

Business activities and summary of significant accounting policies - Intangible assets (Parenthetical) (Detail)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Customer relationships (estimated lives 7 - 15 years) \| Maximum [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years	15 years
Customer relationships (estimated lives 7 - 15 years) \| Minimum [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years	7 years
Patents (estimated life 14 years)
Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	14 years	14 years

XML 35 R30.htm IDEA: XBRL DOCUMENT

Income tax provision (Tables)

12 Months Ended

Oct. 31, 2019

Income tax provision

Reconciliation of provision (benefit) for income taxes for the years ended October 31, 2019 and 2018 are as follows (in thousands):


	2019		2018
Continuing operations	$	1,036	$	1,468
Discontinued operations		—		(41)
Net income	$	1,036	$	1,427

Schedule of components of income tax expense (benefit)

The provision (benefit) for income taxes for the fiscal years ended October 31, 2019 and 2018 consists of the following (in thousands):


	2019		2018
Current:
Federal	$	859	$	1,344
State		220		236
		1,079		1,580

Deferred:
Federal		(25)		(112)
State		(18)		—
		(43)		(112)

	$	1,036	$	1,468

Schedule of Effective Income Tax Rate and Amount Reconciliation

Income tax at the federal statutory rate is reconciled to the Company’s actual net provision for income taxes as follows (in thousands, except percentages):


	2019				2018
			% of Pretax				% of Pretax
	Amount		Income		Amount		Income

Income taxes at federal statutory rate	$	957	21.0	%	$	1,737	38.1	%
State tax provision, net of federal tax benefit		160	3.5	%		170	3.7	%
Nondeductible differences:
Rel-Tech earn-out		—	0.0	%		(6)	(0.1)	%
Qualified domestic production activities deduction		—	0.0	%		(141)	(3.1)	%
Stock options		21	0.5	%		(204)	(4.5)	%
Meals and entertainment		8	0.2	%		8	0.2	%
R&D credits		(119)	(2.6)	%		(111)	(2.4)	%
ASC 740-10 Liability		21	0.5	%		54	1.2	%
Tax Cut and Jobs Act		—	0.0	%		(34)	(0.7)	%
Other		(12)	(0.3)	%		(5)	(0.1)	%
	$	1,036	22.8	%	$	1,468	32.3	%

Schedule of deferred tax assets and liabilities

The Company’s total deferred tax assets and deferred tax liabilities at October 31, 2019 and 2018 are as follows (in thousands):


	2019		2018

Deferred Tax Assets:
Reserves	$	172	$	276
Accrued vacation		97		116
Stock-based compensation awards		87		113
Uniform capitalization		64		78
Other		55		93
Total deferred tax assets		475		676

Deferred Tax Liabilities:
Amortization / intangible assets		(307)		(544)
Depreciation / equipment and furnishings		(125)		(132)
Total deferred tax liabilities		(432)		(676)

Total net deferred tax assets (liabilities)	$	43	$	—

Summary of Income Tax Contingencies [Table Text Block]

The Company’s adjustments to its uncertain tax positions in fiscal years ended October 31, 2019 and 2018 are as follows:


	2019		2018
Balance, at beginning of year	$	59	$	—
Increase for tax positions related to the current year		23		24
Increase for tax positions related to prior years		3		29
Increase for interest and penalties		2		6
Statute of Limitations Expirations		(7)		—
Balance, at end of year	$	80	$	59

XML 36 R38.htm IDEA: XBRL DOCUMENT

Business activities and summary of significant accounting policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Mar. 15, 2019
Business Activities And Summary Of Significant Accounting Policies [Line Items]
Amortization of Intangible Assets	$ 275,000	$ 275,000
Advertising Expense	231,000	236,000
Research and Development Expense	1,468,000	1,480,000
Stock based compensation expense	$ 317,000	$ 211,000
Shares excluded from computation of diluted per share amount	124,097	133,220
Present Value of Future Insurance Profits, Weighted Average Amortization Period	10 years 11 months 23 days
Income Tax Expense (Benefit)	$ 1,036,000	$ 1,468,000
Goodwill from business Acquisition	$ 1,340,000	$ 1,340,000
C Enterprises Inc [Member]
Business Activities And Summary Of Significant Accounting Policies [Line Items]
Goodwill from business Acquisition			$ 0
Maximum [Member]
Business Activities And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Minimum [Member]
Business Activities And Summary Of Significant Accounting Policies [Line Items]
Property, Plant and Equipment, Useful Life	3 years

XML 37 R13.htm IDEA: XBRL DOCUMENT

Accrued expenses and other long-term liabilities

12 Months Ended

Oct. 31, 2019

Accrued expenses and other long-term liabilities

Accrued expenses and other long-term liabilities

Note 7 - Accrued expenses and other long-term liabilities

Accrued expenses consist of the following (in thousands):


	2019		2018

Wages payable	$	1,591	$	1,705
Accrued receipts		1,683		1,271
Other current liabilities		379		401

Totals	$	3,653	$	3,377

Accrued receipts represent purchased inventory for which invoices have not been received.

XML 38 R8.htm IDEA: XBRL DOCUMENT

Business Acquisition

12 Months Ended

Oct. 31, 2019

Net Sales, Income Before Provision for Income Taxes and Other Related Segment Information

Business Acquisition

Note 2 – Business Acquisition

Pro forma financial information is presented in the following table:


	October 31,		October 31,
	2019		2018

Revenue	$	59,250	$	58,658
Net income		3,370		5,419

Earnings per share
Basic	$	0.36	$	0.60
Diluted	$	0.34	$	0.56

XML 39 R17.htm IDEA: XBRL DOCUMENT

Retirement plan	12 Months Ended
Retirement plan	Oct. 31, 2019
Retirement plan
Retirement plan	Note 11 - Retirement plan The Company has a 401(K) plan available to its employees. For the years ended October 31, 2019 and 2018, the Company contributed and recognized as an expense $181,000 and $159,000, respectively, which amount represented 3% of eligible employee earnings under its Safe Harbor Non-elective Employer Contribution Plan.

XML 40 R4.htm IDEA: XBRL DOCUMENT

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 55,325	$ 50,196
Cost of sales	39,688	33,096
Gross profit	15,637	17,100
Operating expenses:
Engineering	1,468	1,480
Selling and general	9,710	8,173
Total operating expenses	11,178	9,653
Operating income	4,459	7,447
Other income	98	47
Income from continuing operations before provision for income taxes	4,557	7,494
Provision for income taxes	1,036	1,468
Income from continuing operations	3,521	6,026
Loss from discontinued operations, net of tax	0	(180)
Consolidated net income	$ 3,521	$ 5,846
Earnings (loss) per share
Continuing operations	$ 0.38	$ 0.66
Discontinued operations	0.00	(0.02)
Net income per share	0.38	0.64
Earnings (loss) per share
Continuing operations	0.36	0.63
Discontinued operations	0.00	(0.02)
Net income per share	$ 0.36	$ 0.61
Weighted average shares outstanding
Basic	9,358,836	9,105,406
Diluted	9,854,604	9,593,066

XML 41 R59.htm IDEA: XBRL DOCUMENT

Retirement plan (Details) - USD ($)	12 Months Ended
Retirement plan (Details) - USD ($)	Oct. 31, 2019	Oct. 31, 2018
Retirement plan
Pension and Other Postretirement Benefit Contributions	$ 181,000	$ 159,000
Percentage Of Employee Contribution Paid	3.00%

XML 42 R51.htm IDEA: XBRL DOCUMENT

Income tax provision - Provision (benefit) for income taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Current:
Federal	$ 859	$ 1,344
State	220	236
Current income tax expense (benefit)	1,079	1,580
Deferred:
Federal	(25)	(112)
State	(18)	0
Deferred Federal, State and Local, Tax Expense (Benefit), Total	(43)	(112)
Income Tax Expense (Benefit), Total	$ 1,036	$ 1,468

XML 43 R55.htm IDEA: XBRL DOCUMENT

Income tax provision - Additional Information (Detail) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Dec. 31, 2017	Oct. 31, 2017
Income Taxes [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	38.10%	35.00%
Unrecognized tax benefits, inclusive of interest and penalties	$ 2,000	$ 6,000
Unrecognized tax benefits	$ 80,000	$ 59,000		$ 0
Provision For Income Tax Expense Percent	22.70%	19.60%
Income Tax Expense (Benefit)	$ 1,036,000	$ 1,468,000
US federal and California [Member]
Income Taxes [Line Items]
Unrecognized tax benefits	$ 72,000	$ 53,000

XML 44 R63.htm IDEA: XBRL DOCUMENT

Commitments - Minimum lease payments operating lease (Details) $ in Thousands	Oct. 31, 2019 USD ($)
Commitments
2020	$ 829
2021	744
2022	465
2023	155
2024	0
Total	$ 2,193

XML 45 R44.htm IDEA: XBRL DOCUMENT

Inventories and major vendors - Components of Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Inventories and major vendors
Raw materials and supplies	$ 3,576	$ 2,711
Work in process	791	603
Finished goods	3,878	3,799
Totals	$ 8,245	$ 7,113

XML 46 R40.htm IDEA: XBRL DOCUMENT

Business Acquisition - Pro forma financial information (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Business Acquisition
Revenue	$ 59,250	$ 58,658
Net income	$ 3,370	$ 5,419
Earnings per share
Basic	$ 0.36	$ 0.60
Diluted	$ 0.34	$ 0.56

XML 47 R48.htm IDEA: XBRL DOCUMENT

Segment information - Sales by geographic area (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Revenue, Major Customer [Line Items]
Sales revenue	$ 55,325	$ 50,196
United States
Revenue, Major Customer [Line Items]
Sales revenue	54,365	49,534
Foreign countries, total
Revenue, Major Customer [Line Items]
Sales revenue	960	662
Canada
Revenue, Major Customer [Line Items]
Sales revenue	592	547
Mexico
Revenue, Major Customer [Line Items]
Sales revenue	109	39
All other
Revenue, Major Customer [Line Items]
Sales revenue	$ 259	$ 76

XML 48 R29.htm IDEA: XBRL DOCUMENT

Segment information (Tables)

12 Months Ended

Oct. 31, 2019

Segment information

Sales by Geographic Area

The following table presents the sales of the Company by geographic area for the years ended October 31, 2019 and 2018 (in thousands):


	2019		2018

United States	$	54,365	$	49,534
Foreign Countries:
Canada		592		547
Mexico		109		39
All Other		259		76
		960		662

Totals	$	55,325	$	50,196

Net sales, income from continuing operations before provision for income taxes and other related segment information for the years ended October 31, 2019 and 2018 are as follows (in thousands):


	RF Connector		Custom Cabling
	and		Manufacturing and
	Cable Assembly		Assembly		Corporate		Total
2019
Net sales	$	13,704	$	41,621	$	—	$	55,325

Income from continuing operations before provision for income taxes		868		3,591		98		4,557

Depreciation and amortization		170		393		—		563

Total assets		7,081		17,282		13,337		37,700

2018
Net sales	$	11,846	$	38,350	$	—	$	50,196

Income from continuing operations before provision for income taxes		107		7,340		47		7,494

Depreciation and amortization		172		341		—		513

Total assets		6,529		8,763		17,210		32,502

XML 49 R21.htm IDEA: XBRL DOCUMENT

Subsequent events	12 Months Ended
Subsequent events	Oct. 31, 2019
Subsequent events
Subsequent event	Note 15 - Subsequent events On November 4, 2019, the Company purchased 100% of the voting equity interest of Schroff Technologies International, Inc. ("Schrofftech"), a Rhode Island-based manufacturer and marketer of intelligent thermal control systems used by telecommunications companies across the U.S. and Canada, and shrouds for small cell integration and installation. The Company paid $4,000,000 in cash at the closing, of which $900,000 was deposited into two separate escrow accounts for a period of one year and two years, respectively, as security for any indemnification claims the Company may have against the seller. In addition to the cash paid at the closing, the Company agreed to pay up to an additional $2,400,000 as an earn-out payment if Schrofftech achieves certain adjusted earnings before interest, taxes, depreciation and amortization (“EBITDA”) targets during the two-year period following the closing. The acquisition is in line with the Company's business strategy to diversify products and solution offerings and customer base. On November 27, 2019, the Company entered into an agreement for a line of credit ("LOC") in the amount of $5.0 million. Amounts outstanding under the LOC shall bear interest at a rate of 2.0% plus LIBOR Daily Floating Rate ("base interest rate"), with interest payable on the last day of each month. Borrowings under the LOC are secured by a security interest in certain assets of the Company. The LOC contains certain loan covenants as described in the agreement. Failure to maintain the loan covenants shall constitute an event of default resulting in all outstanding amounts of principal and interest becoming immediately due and payable. On December 13, 2019, the Board of Directors of the Company declared a quarterly dividend of $0.02 per share payable on January 15, 2020 to stockholders of record on December 31, 2019.

XML 50 R25.htm IDEA: XBRL DOCUMENT

Discontinued operations (Tables)

12 Months Ended

Oct. 31, 2019

Summary Constituting the income (loss) of Discontinued Operations

The major line items constituting the loss of discontinued operations of Comnet are as follows (in thousands):


	2018
Major line items constituting pretax income from discontinued operations:
Net sales	$	8,343
Cost of sales		(6,199)
Gross profit		2,144
Selling, general and administrative expense		(1,569)
Pretax income from discontinued operations		575
Pretax loss on sale of Comnet		(796)
Total pretax income (loss) from discontinued operations		(221)
Provision (benefit) for income taxes		(41)
Income (loss) from discontinued operations	$	(180)

XML 51 R11.htm IDEA: XBRL DOCUMENT

Inventories and major vendors

12 Months Ended

Oct. 31, 2019

Inventories and major vendors

Inventories and major vendors

Note 5 - Inventories and major vendors


	2019		2018

Raw materials and supplies	$	3,576	$	2,711
Work in process		791		603
Finished goods		3,878		3,799

Totals	$	8,245	$	7,113

XML 52 R15.htm IDEA: XBRL DOCUMENT

Income tax provision

12 Months Ended

Oct. 31, 2019

Income tax provision

Income tax provision

Note 9 - Income tax provision

Reconciliation of provision (benefit) for income taxes for the years ended October 31, 2019 and 2018 are as follows (in thousands):


	2019		2018
Continuing operations	$	1,036	$	1,468
Discontinued operations		—		(41)
Net income	$	1,036	$	1,427

The provision (benefit) for income taxes for the fiscal years ended October 31, 2019 and 2018 consists of the following (in thousands):


	2019		2018
Current:
Federal	$	859	$	1,344
State		220		236
		1,079		1,580

Deferred:
Federal		(25)		(112)
State		(18)		—
		(43)		(112)

	$	1,036	$	1,468

Income tax at the federal statutory rate is reconciled to the Company’s actual net provision for income taxes as follows (in thousands, except percentages):


	2019				2018
			% of Pretax				% of Pretax
	Amount		Income		Amount		Income

Income taxes at federal statutory rate	$	957	21.0	%	$	1,737	38.1	%
State tax provision, net of federal tax benefit		160	3.5	%		170	3.7	%
Nondeductible differences:
Rel-Tech earn-out		—	0.0	%		(6)	(0.1)	%
Qualified domestic production activities deduction		—	0.0	%		(141)	(3.1)	%
Stock options		21	0.5	%		(204)	(4.5)	%
Meals and entertainment		8	0.2	%		8	0.2	%
R&D credits		(119)	(2.6)	%		(111)	(2.4)	%
ASC 740-10 Liability		21	0.5	%		54	1.2	%
Tax Cut and Jobs Act		—	0.0	%		(34)	(0.7)	%
Other		(12)	(0.3)	%		(5)	(0.1)	%
	$	1,036	22.8	%	$	1,468	32.3	%

The Company’s total deferred tax assets and deferred tax liabilities at October 31, 2019 and 2018 are as follows (in thousands):


	2019		2018

Deferred Tax Assets:
Reserves	$	172	$	276
Accrued vacation		97		116
Stock-based compensation awards		87		113
Uniform capitalization		64		78
Other		55		93
Total deferred tax assets		475		676

Deferred Tax Liabilities:
Amortization / intangible assets		(307)		(544)
Depreciation / equipment and furnishings		(125)		(132)
Total deferred tax liabilities		(432)		(676)

Total net deferred tax assets (liabilities)	$	43	$	—

The Company’s adjustments to its uncertain tax positions in fiscal years ended October 31, 2019 and 2018 are as follows:


	2019		2018
Balance, at beginning of year	$	59	$	—
Increase for tax positions related to the current year		23		24
Increase for tax positions related to prior years		3		29
Increase for interest and penalties		2		6
Statute of Limitations Expirations		(7)		—
Balance, at end of year	$	80	$	59

XML 53 R2.htm IDEA: XBRL DOCUMENT

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
CURRENT ASSETS
Cash and cash equivalents	$ 12,540	$ 16,334
Trade accounts receivable, net of allowance for doubtful accounts of $32 and $88, respectively	12,190	4,255
Inventories	8,245	7,113
Other current assets	685	828
TOTAL CURRENT ASSETS	33,660	28,530
Property and equipment:
Equipment and tooling	3,602	3,210
Furniture and office equipment	998	822
Property, Plant and Equipment, Gross	4,600	4,032
Less accumulated depreciation	3,761	3,473
Total property and equipment	839	559
Goodwill	1,340	1,340
Amortizable intangible assets, net	1,092	1,367
Non-amortizable intangible assets	657	657
Other assets	112	49
TOTAL ASSETS	37,700	32,502
CURRENT LIABILITIES
Accounts payable	2,406	1,342
Accrued expenses	3,653	3,377
Income taxes payable	21	0
TOTAL CURRENT LIABILITIES	6,080	4,719
Other long-term liabilities	87	0
TOTAL LIABILITIES	6,167	4,719
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Common stock - authorized 20,000,000 shares of $0.01 par value; 9,462,267 and 9,291,201 shares issued and outstanding at October 31, 2019 and October 31, 2018, respectively	95	93
Additional paid-in capital	21,949	20,974
Retained earnings	9,489	6,716
TOTAL STOCKHOLDERS' EQUITY	31,533	27,783
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 37,700	$ 32,502

XML 54 R6.htm IDEA: XBRL DOCUMENT

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	Oct. 31, 2019	Oct. 31, 2018
OPERATING ACTIVITIES:
Consolidated net income	$ 3,521,000	$ 5,846,000
Loss from discontinued operations	0	(180,000)
Income from continuing operations	3,521,000	6,026,000
Adjustments to reconcile consolidated net income to net cash provided by (used in) operating activities:
Bad debt expense	21,000	8,000
Depreciation and amortization	563,000	513,000
Gain on sale of fixed assets	0	(1,000)
Stock-based compensation expense	317,000	211,000
Deferred income taxes	(43,000)	(79,000)
Changes in operating assets and liabilities:
Trade accounts receivable	(6,640,000)	(1,360,000)
Inventories	(657,000)	(1,570,000)
Other current assets	218,000	(321,000)
Other long-term assets	(1,000)	21,000
Accounts payable	106,000	306,000
Accrued expenses	(211,000)	1,516,000
Income tax payable	21,000	0
Other long-term liabilities	75,000	0
Net cash provided by (used in) operating activities from continuing operations	(2,710,000)	5,270,000
Net cash provided by operating activities from discontinued operations	0	945,000
INVESTING ACTIVITIES:
Proceeds from landlord for tenant improvements	0	34,000
Proceeds from sale of fixed assets	0	1,000
Capital expenditures	(538,000)	(266,000)
Proceeds from sale of Comnet	0	4,200,000
Purchase of C Enterprises, net of cash acquired ($143)	(458,000)	0
Net cash provided by (used in) investing activities from continuing operations	(996,000)	3,969,000
Net cash used in investing activities from discontinued operations	0	(272,000)
FINANCING ACTIVITIES:
Proceeds from exercise of stock options	660,000	1,113,000
Dividends paid	(748,000)	(730,000)
Net cash provided by (used in) financing activities	(88,000)	383,000
Net increase (decrease) in cash and cash equivalents	(3,794,000)	10,295,000
Cash and cash equivalents of continuing operations, beginning of year	16,334,000	5,208,000
Cash and cash equivalents of discontinued operations, beginning of year	0	831,000
Cash and cash equivalents, beginning of year	16,334,000	6,039,000
Cash and cash equivalents, end of year	12,540,000	16,334,000
Supplemental cash flow information - income taxes paid	739,000	1,826,000
Supplemental schedule of noncash investing and financing activities:
Disposal of fully depreciated property and equipment	0	(90,000)
Write off of deferred rent from sale of Comnet	$ 0	$ 9,000

XML 55 R19.htm IDEA: XBRL DOCUMENT

Cash dividend and declared dividends	12 Months Ended
Cash dividend and declared dividends	Oct. 31, 2019
Cash dividend and declared dividends
Cash dividend and declared dividends	Note 13 - Cash dividend and declared dividends The Company paid quarterly dividends of $0.02 per share during fiscal year 2019 for a total of $748,000. The Company paid quarterly dividends of $0.02 per share during fiscal year 2018 for a total of $730,000.

XML 56 R36.htm IDEA: XBRL DOCUMENT

Business activities and summary of significant accounting policies - Computation of Basic and Diluted Weighted Average Shares Outstanding (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Numerators:
Consolidated net income (A)	$ 3,521	$ 5,846
Denominators:
Weighted average shares outstanding for basic earnings per share (B)	9,358,836	9,105,406
Add effects of potentially dilutive securities - assumed exercise of stock options	495,768	487,660
Weighted average shares outstanding for diluted earnings per share (C)	9,854,604	9,593,066
Basic earnings per share (A)/(B)	$ 0.38	$ 0.64
Diluted earnings per share (A)/(C)	$ 0.36	$ 0.61

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

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+ Details

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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+ Details

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

Minimum Lease Payments, Operating Leases

XML 57 R32.htm IDEA: XBRL DOCUMENT

Commitments (Tables)

12 Months Ended

Oct. 31, 2019

Commitments

Minimum lease payments under these non-cancelable operating leases in each of the years subsequent to October 31, 2019 are as follows (in thousands):


Year ending
October 31,	Amount

2020	$	829
2021		744
2022		465
2023		155
2024		—
Total	$	2,193

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Income tax provision - Total of deferred tax assets and deferred tax liabilities (Detail) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Deferred Tax Assets:
Reserves	$ 172	$ 276
Accrued vacation	97	116
Stock-based compensation awards	87	113
Uniform capitalization	64	78
Other	55	93
Total deferred tax assets	475	676
Deferred Tax Liabilities:
Amortization / intangible assets	(307)	(544)
Depreciation / equipment and furnishings	(125)	(132)
Total deferred tax liabilities	(432)	(676)
Total net deferred tax assets (liabilities)	$ 43	$ 0

XML 60 R57.htm IDEA: XBRL DOCUMENT

Stock options - Summary of status of options granted under stock option plans and changes in options outstanding (Detail) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Shares
Option price lower range	$ 1.90	$ 1.90
Option price upper range	$ 8.69	$ 5.88
Stock Option
Shares
Outstanding at beginning of year	942,366	1,159,771
Options granted	124,097	269,635
Options exercised	(171,066)	(418,955)
Options canceled or expired	(5,250)	(68,085)
Options outstanding at end of year	890,147	942,366
Options exercisable at January 31, 2019	599,981	675,033
Options vested and expected to vest at end of year	889,088	940,144
Aggregate intrinsic value of options exercised during year	$ 317,827	$ 1,207,148
Weighted Average Exercise Price
Outstanding at beginning of year	$ 3.09	$ 3.19
Options granted	8.16	2.44
Options exercised	3.86	2.66
Options canceled or expired	6.82	4.98
Options outstanding at end of year	3.62	3.09
Options exercisable at end of year	3.25	3.01
Options vested and expected to vest at end of year	$ 3.63	$ 3.09

XML 61 R46.htm IDEA: XBRL DOCUMENT

Other current assets (Details) - USD ($) $ in Thousands	Oct. 31, 2019	Oct. 31, 2018
Other current assets
Prepaid taxes	$ 0	$ 335
Prepaid expense	346	228
Notes receivable, current portion	0	20
Other	339	245
Totals	$ 685	$ 828

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Discontinued operations - Additional Information (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Business Acquisition
Business Combination, Consideration Transferred		$ 4,200,000
Discontinued Operation, Tax Effect of Discontinued Operation	$ 0	41,000
Discontinued Operation, Amount of Adjustment to Prior Period Gain (Loss) on Disposal, before Income Tax		$ 221,000
Issued And Outstanding Shares Percentage for sold of subsidiary		100.00%