Interface Security Systems 10-Q 15 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document	3 Months Ended
	Mar. 31, 2015	14-May-15
Document Information [Line Items]
Entity Registrant Name	INTERFACE SECURITY SYSTEMS HOLDINGS INC
Entity Central Index Key	1164255
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Common Class A [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		2,632,839.70
Common Class B [Member]
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		976,880.09

Unaudited_Consolidated_Balance

Unaudited Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets
Cash and cash equivalents	$1,586	$25,833
Accounts receivable, less allowance for doubtful accounts of $1,205 and $1,105	14,308	11,964
Inventories	14,612	21,655
Prepaid expenses, notes receivable and other assets	3,905	3,460
Total current assets	34,411	62,912
Property and equipment, net	35,893	27,718
Intangible assets, net	22,772	24,332
Goodwill	40,463	40,463
Deferred charges	6,158	6,654
Other assets	7,301	7,216
Total assets	146,998	169,295
Current liabilities
Current portion of capital leases and other obligations	2,517	2,126
Accounts payable	17,098	18,070
Accrued expenses	12,784	16,901
Customer deposits	1,823	2,375
Deferred revenue	3,629	3,419
Total current liabilities	37,851	42,891
Long-term deferred revenue	2,825	2,826
Deferred tax liability	8,255	8,088
Capital leases and other obligations	1,649	2,280
Long-term debt	262,000	262,000
Total liabilities	312,580	318,085
Mezzanine equity
Total mezzanine equity	163,399	163,399
Stockholders' deficit
Additional paid-in-capital	71,564	71,564
Accumulated deficit	-400,581	-383,789
Total stockholders' deficit	-328,981	-312,189
Total liabilities and stockholders' deficit	146,998	169,295
Redeemable Class A Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	110,284	110,284
Redeemable Class C Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	41,154	41,154
Convertible and Redeemable Class E Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	11,961	11,961
Common Class A [Member]
Stockholders' deficit
Value of common stock	26	26
Common Class B [Member]
Stockholders' deficit
Value of common stock	$10	$10

Unaudited_Consolidated_Balance1

Unaudited Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts	$1,205	$1,105
Redeemable Class A Preferred Stock [Member]
Mezzanine equity, par value (in dollars per share)	$1	$1
Mezzanine equity, shares authorized (in shares)	70,000	70,000
Mezzanine equity, shares outstanding (in shares)	39,398	39,398
Redeemable Class C Preferred Stock [Member]
Mezzanine equity, par value (in dollars per share)	$1	$1
Mezzanine equity, shares authorized (in shares)	60,000	60,000
Mezzanine equity, shares outstanding (in shares)	16,094	16,094
Convertible and Redeemable Class E Preferred Stock [Member]
Mezzanine equity, par value (in dollars per share)	$1	$1
Mezzanine equity, shares authorized (in shares)	50,000	50,000
Mezzanine equity, shares outstanding (in shares)	10,467	10,467
Common Class A [Member]
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized (in shares)	3,000,000	3,000,000
Common stock, shares outstanding (in shares)	2,632,840	2,632,840
Common Class B [Member]
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, shares authorized (in shares)	1,500,000	1,500,000
Common stock, shares outstanding (in shares)	976,880	976,880

Unaudited_Consolidated_Stateme

Unaudited Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenue
Services	$32,869	$25,705
Products	5,433	3,015
Total revenue	38,302	28,720
Costs and Expenses
Cost of services	32,915	19,754
Cost of products	5,059	3,772
General and administrative expenses	5,934	8,100
Amortization	1,560	2,372
Depreciation	3,018	2,450
Loss on sale of long-lived assets	226	479
Gain on sale of Transferred Assets	0	-39,715
Total costs and expenses	48,712	-2,788
(Loss) income from operations	-10,410	31,508
Interest expense	-6,164	-6,133
Interest income	0	4
(Loss) income before provision for income taxes	-16,574	25,379
Provision for income taxes	-218	2,311
Net (loss) income	-16,792	27,690
Net (loss) income attributable to common stockholders	-16,792	23,640
Redeemable Class A Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	0	-2,730
Redeemable Class C Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	0	-975
Convertible and Redeemable Class E Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	0	-312
Convertible and Redeemable Class F Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	0	-14
Redeemable Class G Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	$0	($19)

Unaudited_Consolidated_Stateme1

Unaudited Consolidated Statement of Changes in Stockholders' Deficit (USD $)	Total	Common Class A [Member]	Common Class B [Member]	Common Stock [Member]	Common Stock [Member]	Additional paid-in Capital [Member]	Accumulated Deficit [Member]
In Thousands, except Share data, unless otherwise specified	USD ($)			Common Class A [Member]	Common Class B [Member]	USD ($)	USD ($)
				USD ($)	USD ($)
Balances, beginning of period at Dec. 31, 2014	($312,189)			$26	$10	$71,564	($383,789)
Balances, beginning of period (in shares) at Dec. 31, 2014		2,632,840	976,880	2,633,000	977,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	-16,792						-16,792
Balances, end of period at Mar. 31, 2015	($328,981)			$26	$10	$71,564	($400,581)
Balances, end of period (in shares) at Mar. 31, 2015		2,632,840	976,880	2,633,000	977,000

Unaudited_Consolidated_Stateme2

Unaudited Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net (loss) income	($16,792)	$27,690
Adjustments to reconcile net loss to net cash used in operating activities
Amortization	1,560	2,372
Depreciation	3,018	2,450
Amortization of deferred charges	546	546
Deferred income tax	167	-1,099
Loss on sale of long-lived assets	226	479
Gain on sale of Transferred Assets	0	-39,715
Change in operating assets and liabilities
Accounts receivable	-2,344	342
Inventories	7,043	320
Prepaid expenses, notes receivable and other assets	-530	-1,640
Accounts payable	-1,005	-1,569
Accrued expenses	-4,117	-6,355
Customer deposits	-552	122
Deferred revenue	209	946
Net cash used in operating activities	-12,571	-15,111
Cash flows from investing activities
Capital expenditures, subscriber system assets	-11,214	-2,181
Capital expenditures, other	-179	-352
Proceeds from sale of property and equipment	7	92
Proceeds from sale of Transferred Assets	0	40,799
Change in restricted cash	0	-140
Net cash (used) provided by investing activities	-11,386	38,218
Cash flows from financing activities
Proceeds from Revolving Credit Facility	0	4,500
Payments on capital leases and other obligations	-240	-109
Dividends paid on preferred stock	0	-17,912
Redemption of preferred stock	0	-9,374
Deferred financing fees	-50	0
Net cash used by financing activities	-290	-22,895
Net (decrease) increase in cash	-24,247	212
Cash and cash equivalents
Beginning of period	25,833	361
End of period	1,586	573
Supplemental Disclosures
Cash paid for interest	10,965	10,390
Noncash items
Capital expenditures in accounts payable	242	112
Redeemable Class A Preferred Stock [Member]
Noncash items
Dividends accrued	0	-2,730
Redeemable Class C Preferred Stock [Member]
Noncash items
Dividends accrued	0	-975
Convertible and Redeemable Class E Preferred Stock [Member]
Noncash items
Dividends accrued	0	-312
Convertible and Redeemable Class F Preferred Stock [Member]
Noncash items
Dividends accrued	0	-14
Redeemable Class G Preferred Stock [Member]
Noncash items
Dividends accrued	$0	($19)

Organization_and_Basis_of_Pres

Organization and Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation
	Organization
	Interface Security Systems Holdings, Inc. (“Holdings”) is a Delaware corporation. Holdings is a technology company engaged in the sale, provisioning, installation, monitoring and maintenance of physical security, secure managed broadband, and digital Voice and Internet Protocol (“VoIP”) based applications to commercial and residential customers throughout the United States. Holdings is primarily owned by SunTx Capital Partners, L.P. and its affiliates (“SunTx Capital Partners”), which owns approximately 88% of the voting power of Holdings' parent company, Interface Master Holdings, Inc. (“Master Holdings”) on a fully diluted basis. Holdings owns 100% of the outstanding membership interests of its principal operating subsidiary, Interface Security Systems, L.L.C. (“Interface Systems”). Collectively, Holdings and Interface Systems are referred to herein as the “Company” or “Interface”.
	Basis of Presentation
	The consolidated financial statements include the accounts of the Company and its majority owned subsidiaries. All significant transactions and account balances between entities included in the consolidated financial statements have been eliminated in consolidation. The consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary to present a fair statement of the Company’s financial position as of March 31, 2015, and the results of operations for the three months ended March 31, 2015 and 2014. The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial information; accordingly, certain information and footnote disclosures typically included in the Company’s annual financial statements have been condensed or omitted from this report. In management’s opinion, all adjustments necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the periods disclosed have been made. These unaudited condensed financial statements should be read in conjunction with the financial statements and the notes thereto filed with the Company's Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 31, 2015. Information presented as of December 31, 2014 is derived from audited financial statements. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results expected for the full year.
	Significant Accounting Policies
	There have been no material changes to the Company’s significant accounting policies during the three months ended March 31, 2015, as compared to the significant accounting policies disclosed in Note 2 of the Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.
	Going Concern
	The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. These consolidated financial statements do not include any adjustments that might result from the occurrence of any of the uncertainties described in the Operating Model and Liquidity section below.
	Management believes that the Company’s current capital resources are adequate to continue operations, maintain its business strategy and grow recurring monthly revenue (“RMR”) for the next twelve months. Based on its current cash projections which includes our expected continued investment in RMR growth activities, the current Contracted Backlog of $1.0 million and new RMR created in 2014 from the Contracted Backlog which will begin to generate positive cash flow impact during 2015, the Company expects to be able to service its debt through the January 2016 interest payment. However, the Company cannot provide assurance that it will achieve positive cash flow during high volume net new RMR growth periods, that no longer investing in creating new RMR and replacing attrition (“Steady State”) will produce sufficient cash flow to meet all of its obligations or that it can raise additional debt and/or equity capital. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The consolidated financial statements do not include any adjustments that might result from the outcome of these uncertainties.
	The Company is engaged in discussions with potential customers for high volume net new RMR growth opportunities. To achieve positive cash flow during high volume RMR growth, management would have to address the cash flow requirements of the Company to complete these new opportunities for the next twelve months and beyond. The Company did not, however, secure any additional financing during the first quarter of 2015 from existing shareholders or otherwise.
	Operating Model and Liquidity
	The Company conducts business in one operating segment, which is identified by the Company based on how resources are allocated and operating decisions are made. A majority of the Company’s revenues are generated within the Unites States and a majority of the Company’s long-lived assets are located primarily within the United States. Management evaluates performance and allocates resources based on the Company as a whole. The Company’s business model is based on generating long-term contracts with customers to provide on-going monitoring, maintenance and related services that generate profitable RMR. The Company makes a one-time investment in sales and installation cost to create new customers internally and this investment is not capitalized. The Company generates substantial operating losses as a result of expensing the majority of its investment in subscriber RMR growth.
	The Company incurred direct costs of $25.3 million and $7.8 million to create new RMR of $1.1 million and $0.2 million for the three months ended March 31, 2015 and 2014, respectively. The Company's cash used for operations for the three months ended March 31, 2015 is primarily due to these investments.
	Security technology monitoring companies are generally valued based on a multiple of the RMR associated with the customer contracts and these purchase multiples do vary based on performance metrics, scale and market conditions. Management believes that there is significant value created for the Company’s stockholders resulting from the steady growth in the Company’s RMR at historical investment levels. The Company has demonstrated year-on-year increases in monitoring and managed service revenues from adding new RMR that generates high cash flow margins. As of March 31, 2015, the Company is actively billing approximately $9.3 million of RMR and has a Contracted Backlog of RMR contracts totaling $1.0 million with a majority expected to be installed in 2015.
	In February 2015, the Company successfully negotiated a contract term extension in connection with the SMB and VoIP services for one of the Company’s largest customers. The contract negotiations resulted in a three year term extension of the SMB and VoIP services through December 31, 2019 including a price increase of approximately $118,000 per month in consideration of upgrading the network speed across all stores.
	Throughout the course of the Company’s history, it has been able to adjust the level of RMR growth and related investment based on the capital available. If the Company were to cease its internal growth strategy and go into Steady State, it would likely generate future positive cash flows that could be used to pay down its outstanding debt. Steady State is a generally recognized financial metric often used by industry lenders, investment bankers, credit rating agencies and physical security companies to assess ongoing cash flow generating capabilities of a security company assuming that the company invests only in acquiring new customers to offset attrition and maintain a steady base of RMR.
	During high volume net new RMR growth periods, management cannot provide assurance that the Company will achieve positive cash flow or have the ability to raise additional debt and/or equity capital. In the event that sufficient funds cannot be obtained to grow RMR and pay interest payments, management could elect to operate in Steady State and scale back the RMR growth to a level that would significantly reduce its investment costs. A majority of the expenses related to the sales and marketing activity for new RMR opportunities that was spent in 2015 could be eliminated as well as other fixed overhead and operating costs associated with installing net new RMR and 2015 RMR backlog. Management believes that operating in Steady State would provide the resources necessary to service our debt through the January 2016 interest payment. However, the Company has not operated in Steady State and there is no assurance that moving to Steady State will produce sufficient cash flow to meet all of its obligations.
	In March 2015, the Company received a waiver of any default under its Revolving Credit Facility (as defined below) resulting from the going concern emphasis in the audit report for the year ended December 31, 2014. The Company also entered into a fourth amendment to the Revolving Credit Facility increasing the facility from $45.0 million to $50.0 million. The Company had $32.0 million drawn and $14.0 million available for borrowing under its Revolving Credit Facility at March 31, 2015. As of April 30, 2015, the Company had $34.0 million drawn and $13.4 million available for borrowing under its Revolving Credit Facility. See Note 7.
	The Company used $12.6 million and $15.1 million of cash for operations for the three months ended March 31, 2015 and 2014, respectively, and had negative working capital of $3.4 million as of March 31, 2015 and positive working capital of $20.0 million as of December 31, 2014. In addition, as of March 31, 2015, the Company had $262.0 million of total indebtedness.
	Other Comprehensive Income
	The Company did not recognize any other comprehensive income during the three months ended March 31, 2015 and 2014.

Inventories

Inventories	3 Months Ended
	Mar. 31, 2015
Inventory Disclosure [Abstract]
Inventories	Inventories
	Inventories consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Products	$	6,965	$	10,279
	Work-in-process	7,647		11,376
		$	14,612	$	21,655

Sale_of_Transferred_Assets

Sale of Transferred Assets	3 Months Ended
	Mar. 31, 2015
Discontinued Operations and Disposal Groups [Abstract]
Sale of Transferred Assets	Sale of Transferred Assets
	Pursuant to an Asset Purchase Agreement (the “Asset Purchase Agreement”), dated as of January 9, 2014 (the “Closing Date”), by and among My Alarm Center, LLC, d/b/a Alarm Capital Alliance (“Buyer”), and Interface Systems, the Company sold certain residential customer contracts and related assets and liabilities used exclusively in, or necessary to conduct, the alarm system sales, installation, repair, maintenance and monitoring services of the Company’s Hawk Security Services brand (“Hawk”) in the State of Texas (the “Transferred Assets”) to the Buyer. The total purchase price for the Transferred Assets was approximately $42.8 million of which approximately $40.7 million was paid in cash to the Company and $2.1 million was deposited in an escrow account on the Closing Date. Approximately $2.0 million was recorded as restricted cash on the balance sheet as of December 31, 2013. The funds remained in escrow for 6 months following the Closing Date with a 30 day settlement period and served as the exclusive source of recovery for customary indemnification obligations with respect to the Company’s representations, warranties and covenants under the Asset Purchase Agreement and certain adjustments to the purchase price in the event the customer attrition rate applicable to the Transferred Assets differed from specified targets. The Company agreed to provide Buyer with certain specified transition services to allow for the efficient transition of the Transferred Assets to Buyer for 6 months following the Closing Date with a 30 day settlement period, unless extended by mutual agreement. This escrow balance was released and received by the Company in August 2014. The Company continues to operate in the residential alarm monitoring business under the Interface brand and the Hawk branded services were not clearly distinguishable operationally or for financial reporting purposes. The Company used a portion of the net proceeds to redeem all of the issued and outstanding shares of its Class G Preferred Stock and Class F Preferred Stock and part of its Class E Preferred Stock and to pay a cash dividend in an aggregate amount of approximately $27.3 million to the stockholders as permitted under the indenture governing the Senior Secured Notes.

Property_and_Equipment

Property and Equipment	3 Months Ended
	Mar. 31, 2015
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment
	Property and equipment consists of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Subscriber system assets	$	47,423		$	36,880
	Equipment	2,886			2,809
	Vehicles	1,036			1,125
	Software	2,877			2,817
	Furniture and fixtures	544			543
	Leasehold improvements	955			933
		55,721			45,107
	Less: Accumulated depreciation	(19,828		)	(17,389		)
		$	35,893		$	27,718
	Depreciation expense was $3.0 million and $2.5 million for the three months ended March 31, 2015 and 2014, respectively.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	Activity for goodwill is set forth as below (in thousands):
	Balance at December 31, 2014	$	40,463
	Additions for current period	—
	Accumulated impairment losses	—
	Balance at March 31, 2015	$	40,463
	Intangible assets are recorded at cost or fair value if acquired in a purchase business combination and consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Alarm monitoring contracts	$	57,075		$	58,044
	Internally developed software	4,347			4,347
	Other	15			15
		61,437			62,406
	Less Accumulated amortization for:
	Alarm monitoring contracts	(36,035		)	(35,662		)
	Internally developed software	(2,618		)	(2,400		)
	Other	(12		)	(12		)
		(38,665		)	(38,074		)
		$	22,772		$	24,332
	Amortization of intangible assets was $1.6 million and $2.4 million for the three months ended March 31, 2015 and 2014, respectively. Amortization of intangible assets for the following five years, as of March 31, 2015, is as follows (in thousands):
	Nine months ending December 31, 2015	$	3,917
	2016	4,149
	2017	2,855
	2018	1,995
	2019	1,907
	2020	1,877

Accrued_Expenses

Accrued Expenses	3 Months Ended
	Mar. 31, 2015
Payables and Accruals [Abstract]
Accrued Expenses	Accrued Expenses
	Accrued expenses consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Payroll and benefit related accruals	$	4,209	$	3,885
	Interest	4,567		9,896
	Other	4,008		3,120
		$	12,784	$	16,901

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt
	Long-term debt consists of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Notes	$	230,000		$	230,000
	Revolving line of credit	32,000			32,000
		$	262,000		$	262,000
	In January 2013, the Company closed an offering of 9 1/4% Senior Secured Notes due 2018 (the “Notes”) in an aggregate principal amount of $230.0 million, the proceeds of which were used to repay its then-existing revolver balance, senior subordinated promissory note, subordinated notes payable and the fees and expenses associated with the offering. The Notes have a maturity date of January 15, 2018 and have an interest rate of 9.25% with semi-annual interest payments due on January 15th and July 15th. The Notes are jointly and severally guaranteed by each of the Company's future domestic restricted subsidiaries and are secured by substantially all of the Company’s and the guarantors’ existing and future tangible and intangible assets.
	In connection with the issuance of the Notes, the Company entered into a registration rights agreement with the initial purchasers of the Notes. The Registration Statement was filed pursuant to the Company's obligations under this registration rights agreement on July 9, 2014. The Registration Statement was declared effective on July 30, 2014. The exchange offer expired on August 27, 2014 and all of the Notes were tendered by the holders and exchanged.
	The Company also closed a $45.0 million Revolving Credit Facility in January 2013, senior to the Notes (the “Revolving Credit Facility”), which allows the Company to borrow the lesser of $45.0 million or up to 5 times RMR. The Revolving Credit Facility matures on January 15, 2018 and had $32.0 million drawn and availability of $14.0 million at March 31, 2015. The Revolving Credit Facility includes a $1.0 million sub-limit for the issuance of letters of credit, and the amount outstanding reduces the available borrowing capacity. As of March 31, 2015 and December 31, 2014, the Company had $0.1 million in letters of credit outstanding.
	Borrowings under the revolving line of credit bear interest at a floating rate per year equal to the higher of (A) the rate (adjusted for statutory reserve requirements for Eurocurrency liabilities) at which Eurodollar deposits are offered for a period equal to one, two, three, or six months, as quoted on Reuters Screen LIBOR01 Page (or any successor / similar page or service) as of 11:00 a.m., London time, on the day that is two London banking days preceding the applicable interest determination date and (B) 0.50%, plus 3.25% (3.75% as of March 31, 2015). The Revolving Credit Facility includes financial covenants, including: (i) a covenant not to exceed a revolving facility usage to eligible RMR ratio of 5.0 to 1.0, (ii) a covenant to maintain a minimum fixed charge coverage of 1.25 to 1.0, and (iii) a covenant not to exceed a maximum gross attrition rate of 13.0% at any time. The Revolving Credit Facility is secured by a first priority perfected lien on all of the same assets that secure the Notes. The Revolving Credit Facility also provides that, upon the occurrence of certain events of default, the Company’s obligations thereunder may be accelerated and any lending commitments terminated. Such events of default include payment defaults to the lenders, material inaccuracies of representations and warranties, covenant defaults, cross‑defaults to other material indebtedness, voluntary and involuntary bankruptcy proceedings, material money judgments, certain change of control events and other customary events of default. As of March 31, 2015, the Company was in compliance with all of the restrictive and financial covenants.
	On May 16, 2014, the Company entered into a waiver, consent and second amendment to its Revolving Credit Facility with the lender, which (i) amended the Revolving Credit Facility to permit, and in which the lender consented to, certain events in connection with certain reorganization transactions; (ii) amended the Revolving Credit Facility to provide that a ‘‘change of control’’ in the indenture governing the 12.50% / 14.50% Senior Contingent Cash Pay Notes of Master Holdings (the ‘‘Master Holding Notes”) will constitute a ‘‘change in control’’ under the Revolving Credit Facility; and (iii) waived any defaults in connection with the Company’s prior substantial doubt about its ability to continue as a going concern. On August 15, 2014, the Company entered into a third amendment to its Revolving Credit Facility with the lender, which increased the amount of capital leases, mortgage financings or purchase money obligations, in each case, incurred for the purpose of financing all or any part of the purchase price or cost of design, construction, installation or improvement of property, plant or equipment used in the business, in an aggregate principal amount, including all new indebtedness incurred to renew, refund, refinance, replace, defease or discharge any existing indebtedness incurred not to exceed $5,000,000 at any time outstanding, less the outstanding amount of any capital leases.
	On March 30, 2015, the Company received a waiver of any default under its Revolving Credit Facility resulting from the going concern emphasis in the audit report for the year ended December 31, 2014. On March 30, 2015, the Company entered into a fourth amendment to the Revolving Credit Facility increasing the facility from $45.0 million to $50.0 million.
	Based upon outstanding indebtedness as of March 31, 2015, aggregate annual maturities on the total borrowings under all debt agreements as of March 31, 2015 are as follows (in thousands):
	Year		Amount
	2015		$	—
	2016		—
	2017		—
	2018		262,000
	2019		—
			$	262,000
	At March 31, 2015, the Notes traded at a range of 100.25 to 101.25 based upon available market information. The range of the estimated fair value of the Company's Notes was $230.6 million to $232.9 million as of March 31, 2015 and $230.0 million to $234.6 million as of December 31, 2014 and is classified with Level 2 of the valuation hierarchy. The carrying amount of debt outstanding under the Company's Revolving Credit Facility approximates fair value as interest rates on these borrowings approximate terms currently offered by the Company, which are considered Level 2. The Company does not have any assets categorized as Level 1 or Level 3 in the fair value hierarchy and there were no transfers made into or out of the Company's Level 2 financial assets during the three months ended March 31, 2015 and 2014. See Note 8.
	Costs related to borrowings are deferred and amortized to interest expense over the terms of the related borrowing. Deferred charges consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Deferred financing fees	$	10,971		$	10,921
	Accumulated amortization	(4,813		)	(4,267		)
		$	6,158		$	6,654
	Amortization of deferred financing costs was $0.5 million and $0.5 million for the three months ended March 31, 2015 and 2014, respectively, which is included in interest expense in the accompanying unaudited consolidated statement of operations.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments
	The Company has established a process for determining fair value of its financial assets and liabilities using available market information or other appropriate valuation methodologies. Fair value is based upon quoted market prices, where available. If such valuation methods are not available, fair value is based on internally or externally developed models using market-based or independently-sourced market parameters, where available. Fair value may be subsequently adjusted to ensure that those assets and liabilities are recorded at fair value. The use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value estimate as of the Company’s reporting date.
	Fair value guidance establishes a three-level hierarchy for disclosure of fair value measurements, based upon the transparency of inputs to the valuation of an asset or liability as of the measurement date, as follows:
	•	Level 1 – inputs to the valuation methodology are quoted prices (unadjusted) for identical assets or liabilities in active markets.
	•	Level 2 – inputs to the valuation methodology include quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset and liability, either directly or indirectly, for substantially the full term of the financial instrument.
	•	Level 3 – inputs to the valuation methodology are unobservable and significant to the fair value measurement.
	The carrying amounts of cash, receivables and payables approximate fair value because of the short maturity of those instruments.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The Company recognized income tax expense of $0.2 million and income tax benefit of $2.3 million for the three months ended March 31, 2015 and 2014, respectively, resulting in an effective tax rate of 1.32% and (9.10)% for the three months ended March 31, 2015 and 2014, respectively, In each period, income tax expense includes i) the effects of a valuation allowance maintained for federal and state deferred tax assets including net operating loss carry forwards and ii) expense for certain jurisdictions where the tax liability is determined based on non-income related activities, such as gross sales. In addition, the Company determines it estimated annual effective tax rate based on its projected operating losses for the year and applies this rate to each period in accordance with requirements for accounting for income taxes under ASC 740-270.

Mezzanine_Equity

Mezzanine Equity	3 Months Ended
	Mar. 31, 2015
Temporary Equity Disclosure [Abstract]
Mezzanine Equity	Mezzanine Equity
	Mezzanine equity in the consolidated balance sheets as of March 31, 2015 and December 31, 2014 is comprised of the Company’s Class A, Class C, Class E, Class F and Class G preferred stock, including accrued dividends.
	In May 2014, the Company completed a corporate reorganization with Master Holdings in connection with the closing of a $115.0 million offering of the Master Holdings Notes. The Master Holding Notes are not guaranteed by any of Master Holdings subsidiaries, including Holdings and Interface Systems. Pursuant to the reorganization, each of SunTx Capital Partners and certain of its affiliates, Michael T. Shaw, Michael J. McLeod, Kenneth Obermeyer and certain other stockholders of Holdings exchanged all of their shares of each class of common stock of Holdings and each class of preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings with substantially similar terms as the shares of Holdings. In addition, Master Holdings used $71.6 million of the proceeds of the offering to purchase shares of Class A common stock and Class B common stock of Holdings. Immediately following the consummation of these transactions, Master Holdings owned approximately 99% of each class of common stock of Holdings and at least 99% of each class of preferred stock. Subsequent to these transactions, the remaining stockholders of Holdings exchanged all of their shares of each class of common stock and preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings. As a result, Master Holdings now owns 100% of the common stock and preferred stock of Holdings. In May 2014, the Company adopted an amended and restated certificate of incorporation authorizing 70,000 shares of Class A preferred stock with a par value of $1.00 per share, 60,000 shares of Class C preferred stock with a par value of $1.00 per share, and 50,000 shares of Class E preferred stock with a par value of $1.00 per share. Pursuant to the Company’s amended and restated certificate of incorporation, none of the classes of preferred stock are entitled to receive any dividends.
	The Company adopted an amended and restated certificate of incorporation on May 29, 2014 authorizing 70,000 shares of Class A preferred stock with a par value of 1.00 per share, 60,000 shares of Class C preferred stock with a par value of 1.00 per share, and 50,000 shares of Class E preferred stock with a par value of 1.00 per share. Pursuant to the Company’s amended and restated certificate of incorporation, none of the classes of preferred stock are entitled to receive any dividends.
	Prior to adopting the amended and restated certificate of incorporation, the Company’s certificate of incorporation, as amended (the “Prior Charter”), also authorized 50,000 shares of Class F preferred stock with a par value of $1.00 per share and 5,000 shares of Class G preferred stock with a par value of $1.00 per share. In addition, each share of Class E preferred stock was convertible into one share of Class A common stock and one share of Class C preferred stock at any time at the option of the stockholder. Pursuant to the Prior Charter, each series of the preferred stock accrued dividends cumulatively on a daily basis at the rate of 10% per annum (12.9% for the Class F preferred stock), due and payable upon a liquidation event (as defined in the prior charter). Dividends ceased to accrue upon adoption of the Company’s amended and restated certificate of incorporation.
	The Company’s preferred stock each contain an optional redemption that allows the Company to redeem the preferred shares at its option, and a mandatory redemption upon a Disposition Event (as defined in the Company’s amended and restated certificate of incorporation), in each case, at their stated redemption value plus all accrued and unpaid dividends. Since SunTx Capital Partners and its affiliates control the appointment of the directors of Holdings through its ownership of the substantial majority of the voting power of Master Holdings, SunTx Capital Partners could require the Company to redeem the preferred shares or otherwise force a Disposition Event. As such, the Company considers the preferred stock and associated dividends to be payable at the option of the holder and not solely within the Company’s control. Accordingly, the Company’s preferred stock is recorded as redeemable and / or convertible securities (outside of permanent equity) in the accompanying consolidated balance sheets.
	Class C and Class E have liquidation preference rights over Class A preferred stock. The distribution of any liquidation is set forth in Holdings’ amended and restated certificate of incorporation.
	In January 2014, the Company used a portion of the net proceeds from the sale of the Transferred Assets to redeem all of the issued and outstanding shares of the Company’s Class G preferred stock and Class F preferred stock and part of the Company’s Class E preferred stock and to pay a cash dividend in an aggregate amount of approximately $27.3 million to the stockholders as permitted under the indenture governing the Notes. There was no change in mezzanine equity from December 31, 2014.
	Stockholders’ Equity
	Holdings’ amended and restated certificate of incorporation authorizes 3,000,000 shares of Class A common stock with a par value of $0.01 per share, and 1,500,000 shares of Class B common stock with a par value of $0.01 per share. See consolidated statement of changes in stockholder’s equity (deficit) for details of shares issued and outstanding. In addition, each share of Class A common stock is convertible into one share of Class B common stock at any time at the option of the stockholder.
	On December 13, 2001 (date of inception), members of Company management purchased shares of Holdings’ stock at prices determined by the Board of Directors of the Company. The purchase price for such shares was paid to Holdings with an aggregate of $250,000 in recourse promissory notes payable to the Company, with the shares pledged as collateral. In April 2014, all of the promissory notes issued by management were paid in full and terminated.

Stockholders_Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Stockholders' Equity	Mezzanine Equity
	Mezzanine equity in the consolidated balance sheets as of March 31, 2015 and December 31, 2014 is comprised of the Company’s Class A, Class C, Class E, Class F and Class G preferred stock, including accrued dividends.
	In May 2014, the Company completed a corporate reorganization with Master Holdings in connection with the closing of a $115.0 million offering of the Master Holdings Notes. The Master Holding Notes are not guaranteed by any of Master Holdings subsidiaries, including Holdings and Interface Systems. Pursuant to the reorganization, each of SunTx Capital Partners and certain of its affiliates, Michael T. Shaw, Michael J. McLeod, Kenneth Obermeyer and certain other stockholders of Holdings exchanged all of their shares of each class of common stock of Holdings and each class of preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings with substantially similar terms as the shares of Holdings. In addition, Master Holdings used $71.6 million of the proceeds of the offering to purchase shares of Class A common stock and Class B common stock of Holdings. Immediately following the consummation of these transactions, Master Holdings owned approximately 99% of each class of common stock of Holdings and at least 99% of each class of preferred stock. Subsequent to these transactions, the remaining stockholders of Holdings exchanged all of their shares of each class of common stock and preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings. As a result, Master Holdings now owns 100% of the common stock and preferred stock of Holdings. In May 2014, the Company adopted an amended and restated certificate of incorporation authorizing 70,000 shares of Class A preferred stock with a par value of $1.00 per share, 60,000 shares of Class C preferred stock with a par value of $1.00 per share, and 50,000 shares of Class E preferred stock with a par value of $1.00 per share. Pursuant to the Company’s amended and restated certificate of incorporation, none of the classes of preferred stock are entitled to receive any dividends.
	The Company adopted an amended and restated certificate of incorporation on May 29, 2014 authorizing 70,000 shares of Class A preferred stock with a par value of 1.00 per share, 60,000 shares of Class C preferred stock with a par value of 1.00 per share, and 50,000 shares of Class E preferred stock with a par value of 1.00 per share. Pursuant to the Company’s amended and restated certificate of incorporation, none of the classes of preferred stock are entitled to receive any dividends.
	Prior to adopting the amended and restated certificate of incorporation, the Company’s certificate of incorporation, as amended (the “Prior Charter”), also authorized 50,000 shares of Class F preferred stock with a par value of $1.00 per share and 5,000 shares of Class G preferred stock with a par value of $1.00 per share. In addition, each share of Class E preferred stock was convertible into one share of Class A common stock and one share of Class C preferred stock at any time at the option of the stockholder. Pursuant to the Prior Charter, each series of the preferred stock accrued dividends cumulatively on a daily basis at the rate of 10% per annum (12.9% for the Class F preferred stock), due and payable upon a liquidation event (as defined in the prior charter). Dividends ceased to accrue upon adoption of the Company’s amended and restated certificate of incorporation.
	The Company’s preferred stock each contain an optional redemption that allows the Company to redeem the preferred shares at its option, and a mandatory redemption upon a Disposition Event (as defined in the Company’s amended and restated certificate of incorporation), in each case, at their stated redemption value plus all accrued and unpaid dividends. Since SunTx Capital Partners and its affiliates control the appointment of the directors of Holdings through its ownership of the substantial majority of the voting power of Master Holdings, SunTx Capital Partners could require the Company to redeem the preferred shares or otherwise force a Disposition Event. As such, the Company considers the preferred stock and associated dividends to be payable at the option of the holder and not solely within the Company’s control. Accordingly, the Company’s preferred stock is recorded as redeemable and / or convertible securities (outside of permanent equity) in the accompanying consolidated balance sheets.
	Class C and Class E have liquidation preference rights over Class A preferred stock. The distribution of any liquidation is set forth in Holdings’ amended and restated certificate of incorporation.
	In January 2014, the Company used a portion of the net proceeds from the sale of the Transferred Assets to redeem all of the issued and outstanding shares of the Company’s Class G preferred stock and Class F preferred stock and part of the Company’s Class E preferred stock and to pay a cash dividend in an aggregate amount of approximately $27.3 million to the stockholders as permitted under the indenture governing the Notes. There was no change in mezzanine equity from December 31, 2014.
	Stockholders’ Equity
	Holdings’ amended and restated certificate of incorporation authorizes 3,000,000 shares of Class A common stock with a par value of $0.01 per share, and 1,500,000 shares of Class B common stock with a par value of $0.01 per share. See consolidated statement of changes in stockholder’s equity (deficit) for details of shares issued and outstanding. In addition, each share of Class A common stock is convertible into one share of Class B common stock at any time at the option of the stockholder.
	On December 13, 2001 (date of inception), members of Company management purchased shares of Holdings’ stock at prices determined by the Board of Directors of the Company. The purchase price for such shares was paid to Holdings with an aggregate of $250,000 in recourse promissory notes payable to the Company, with the shares pledged as collateral. In April 2014, all of the promissory notes issued by management were paid in full and terminated.

Benefit_Plan

Benefit Plan	3 Months Ended
	Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Benefit Plan	Benefit Plan
	The Company sponsors a 401(k) savings plan (the “Plan”) covering substantially all employees who are at least age 21 and have completed six months of service with the Company. The Company, at its discretion, may make employer contributions to the Plan. During the three months ended March 31, 2015, the Company made a contribution of $0.2 million to the Plan. The Company did not make a contribution to the Plan during the three months ended March 31, 2014.

Lease_Commitments_and_Other_Ob

Lease Commitments and Other Obligations	3 Months Ended
	Mar. 31, 2015
Leases [Abstract]
Lease Commitments and Other Obligations	Lease Commitments and Other Obligations
	The Company is party to various noncancelable operating leases for equipment, building rent, computer systems and various vehicles with terms of one year or greater. At March 31, 2015, the future minimum rental payments required under such leases are as follows (in thousands):
	Nine months ending December 31, 2015	$	2,403
	2016	2,460
	2017	1,693
	2018	1,215
	2019 and thereafter	1,754
		$	9,525
	Rental expense for equipment, building rent, computer systems and vehicles for the three months ended March 31, 2015 and 2014 was $2.1 million and $1.5 million, respectively.
	In addition to the operating leases above, the Company has equipment leases that are accounted for as capital leases. At March 31, 2015, the future minimum lease payments under such leases are as follows (in thousands):
	Nine months ending December 31, 2015	$	224
	2016	240
	2017 and thereafter	9
		473
	Less: current portion	(301		)
		$	172
	Capital leases for equipment had a book value of $2.1 million and $2.2 million and accumulated depreciation of $1.5 million and $1.5 million at March 31, 2015 and December 31, 2014, respectively.
	The Company has entered into financing arrangements for the purchase of inventory. The financing arrangements are non-interest bearing and range from 24 to 36 months in duration. The total amount of these borrowings, including current portion, was $3.7 million and $3.9 million at March 31, 2015 and December 31, 2014, respectively. The current portion of these borrowings was $2.2 million and $1.8 million at March 31, 2015 and December 31, 2014, respectively. The imputed interest on the financing arrangements was not significant based on the lender's borrowing rate.
	In March 2015, the Company entered into a financing arrangement for the purchase of inventory and managed support services in the amount of $0.9 million. At March 31, 2015, the Company has the right, but not the obligation to satisfy the loan until deliver and acceptance has occurred. The financing arrangement is non-interest bearing and payable over 24 months.

Concentrations_of_Credit_Risk_

Concentrations of Credit Risk and Significant Customers	3 Months Ended
	Mar. 31, 2015
Risks and Uncertainties [Abstract]
Concentrations of Credit Risk and Significant Customers	Concentrations of Credit Risk and Significant Customers
	The Company provides services and sells its products to a wide range of customers including commercial businesses and private residences. The Company performs ongoing credit evaluations of its customers and generally does not require collateral. The Company maintains reserves for potential credit losses, and such losses have historically been within management’s expectations.
	The Company had concentrations of credit risk with two customers, representing 20.6% and 15.8%, respectively, of total revenues for the three months ended March 31, 2015. The associated accounts receivable from these two customers as a percentage of the Company’s accounts receivable, net, were 32.5% and 16.3%, respectively, as of March 31, 2015. For the three months ended March 31, 2014, the Company's two largest customers accounted for 19.1% and 6.9%, respectively, of total revenues and represented 20.5% and 5.3%, respectively, of the Company’s total accounts receivable, net, as of March 31, 2014.
	Purchases from a specific vendor that provides subcontract labor in the security alarm and managed services industry totaled $7.5 million and $1.5 million for the three months ended March 31, 2015 and 2014, respectively. At March 31, 2015 and March 31, 2014, the Company had an accounts payable balance of $2.8 million and $0.7 million, respectively, due to the vendor. Purchases from this vendor represented 23.6% and 6.4% of the Company’s total purchases for the three months ended March 31, 2015 and 2014, respectively. Additionally, purchases of equipment from another vendor totaled $1.7 million and $2.4 million for the three months ended March 31, 2015 and 2014, respectively. At March 31, 2015 and March 31, 2014, the Company had an accounts payable balance of $3.0 million and $2.0 million, respectively, due to the vendor. Purchases from this vendor represented 5.4% and 10.1% of the Company’s total purchases for the three months ended March 31, 2015 and 2014, respectively. Although approximately 29.0% and 16.5% of the Company’s total purchases were purchased from these vendors for the three months ended March 31, 2015 and 2014, respectively, the Company continues to maintain strong relationships with other vendors in the industry and has the ability to purchase the necessary equipment and services from these other vendors to continue its operations, if needed.

Related_Party

Related Party	3 Months Ended
	Mar. 31, 2015
Related Party Transactions [Abstract]
Related Party	Related Party
	Management Agreement
	In April 2010, the Company entered into a Management Services Agreement (the “Management Agreement”) with SunTx Capital Management Corp. (“SunTx Management”), the general partner of SunTx Capital Partners. Pursuant to the Management Agreement, SunTx Management provides certain management services to the Company. The term of the Management Agreement is ten years, which may be terminated by SunTx Management upon 90 days written notice to the Company. The Company pays SunTx Management, on a monthly basis, SunTx Management’s customary fees for rendering the management services, as set forth in a statement delivered to the Company from time to time. These fees are anticipated under the Management Agreement not to exceed $500,000 on an annual basis. The Company also reimburses SunTx Management for all out-of-pocket expenses and payroll costs of in-house legal counsel incurred by SunTx Management in connection with the management services and pays all taxes resulting from its purchase or use of the management services. In addition to the management services fee, in connection with any acquisitions, dispositions or debt or equity financings by Interface Systems or any of its affiliates, Interface Systems will pay SunTx Management a fee which shall not exceed an amount equal to 2% of the total enterprise value involved in the transaction. The total enterprise value is determined by the board of directors of Interface Systems. Under the indenture for the Master Holdings Notes, the Company is not permitted to pay the fees to SunTx Management under the Management Agreement unless, among other requirements, the Company is permitted to incur at least $1.00 of additional indebtedness pursuant to the fixed charge coverage ratio test set forth in the indenture for the Notes. The Company was not permitted to incur such $1.00 of additional indebtedness, excluding permitted indebtedness under the revolving credit line, for the trailing four quarters ended March 31, 2015 and therefore, no fees were paid to SunTx Management during the period from June 2014 to March 2015. Fees paid to SunTx Management were $0.1 million for the three months ended March 31, 2014.
	Registration Rights Agreement
	On December 13, 2001, Holdings entered into a registration rights agreement (the “Registration Rights Agreement”) with certain of its stockholders, including, among others, SunTx Interface, Michael T. Shaw, Michael J. McLeod and Kenneth Obermeyer (together with Mr. Shaw and Mr. McLeod, the “Management Investors”). In connection with the Reorganization Transactions, Master Holdings succeeded to all of the rights under the Registration Rights Agreement of SunTx, the Management Investors and the other investors with respect to the shares of common stock they transferred to Master Holdings. Subsequent to the Reorganization Transactions, the remaining stockholders of Holdings exchanged all of their shares of each class of common stock and preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings. As a result, Master Holdings now owns 100% of the common stock and preferred stock of Holdings, and on June 30, 2014, the Registration Rights Agreement was terminated.
	Stockholder Agreement
	On July 16, 2007, Holdings entered into a stockholder agreement, as amended on May 5, 2010 and on January 14, 2013, and amended and restated on May 30, 2014 (the “Stockholder Agreement”), among certain of its stockholders, including SunTx Interface and the Management Investors. In connection with the Reorganization Transactions, Master Holdings succeeded to all of the rights under the Stockholder Agreement of SunTx, the Management Investors and the other investors with respect to the shares of common stock and preferred stock they transferred to Master Holdings. The Stockholder Agreement, among other things, contained agreements among the investors with respect to the election of Holdings’ board of directors, voting and other restrictions on the transfer of Holdings’ stock, other special corporate governance provisions, prohibitions of certain actions, a right of first purchase, and certain pre-emptive rights.
	Subsequent to the Reorganization Transactions, the remaining stockholders of Holdings exchanged all of their shares of each class of common stock and preferred stock of Holdings for an equal number of shares of common stock and preferred stock of Master Holdings. As a result, Master Holdings now owns 100% of the common stock and preferred stock of Holdings, and on June 30, 2014, the Stockholder Agreement was terminated.
	Other Related Party Transactions
	In March 2014, the Company entered into a settlement and advance agreement with a former employee of the Company and shareholder of Master Holdings. The agreement releases all current and future claims against the Company in return for a non-interest bearing loan of $500,000 to the former employee and shareholder. The loan is secured by a promissory note and a pledge agreement securing 50% of the 2,074.02 shares of Master Holdings' common stock (representing 7.0% of the total outstanding common stock) owned by the former employee and shareholder.
	In January 2015, the Company entered into a fee based compensation agreement with a former senior executive employee and current shareholder to pay a sales commission in the amount of $1.2 million solely related to the successful negotiation of a contract term extension in connection with the SMB and VoIP services for one of the Company’s largest customers. The agreement is non-interest bearing and payable within one year. In February 2015, these contract negotiations resulted in a 3 year term extension of the SMB and VoIP services through December 31, 2019 including a price increase of approximately $118,000 per month in consideration of upgrading the network speed across all stores. The successful negotiation of this three year term extension was assisted by the former executive and current shareholder of the Company who was also instrumental in negotiating the initial contract with Dollar General in 2010. The Company has paid $0.4 million to the shareholder through the end of March 31, 2015.

Contingencies

Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies
	From time to time, the Company is involved in litigation and regulatory proceedings arising out of its operations. Management believes that the Company is not currently a party to any legal or regulatory proceedings, the adverse outcome of which, individually or in the aggregate, would materially adversely affect the Company's business, financial position, results of operations or liquidity.

Recently_Issued_Accounting_Sta

Recently Issued Accounting Standards	3 Months Ended
	Mar. 31, 2015
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards
	In April 2015, the FASB issued ASU No. 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs (“ASU 2015-03”), as part of its initiative to reduce complexity in accounting standards (the Simplification Initiative). The Board received feedback that having different balance sheet presentation requirements for debt issuance costs and debt discount and premium creates unnecessary complexity. Recognizing debt issuance costs as a deferred charge (that is, an asset) also is different from the guidance in International Financial Reporting Standards, which requires that transaction costs be deducted from the carrying value of the financial liability and not recorded as separate assets. Additionally, the requirement to recognize debt issuance costs as deferred charges conflicts with the guidance in FASB Concepts Statement No. 6, “Elements of Financial Statements,” which states that debt issuance costs are similar to debt discounts and in effect reduce the proceeds of borrowing, thereby increasing the effective interest rate. FASB Concepts Statement No. 6 further states that debt issuance costs cannot be an asset because they provide no future economic benefit. To simplify presentation of debt issuance costs, the amendments in this ASU require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this ASU. For public business entities, the amendments in this ASU are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. Application of this new accounting guidance will result in the reclassification of our debt issuance costs At March 31, 2015, the Company had $6.2 million of unamortized debt issue costs classified within deferred charges.
	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), (“ASU 2014-09”). ASU 2014-09 outlines a new, single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. This new revenue recognition model provides a five-step analysis in determining when and how revenue is recognized. The new model will require revenue recognition to depict the transfer of promised goods or services to customers in an amount that reflects the consideration a company expects to receive in exchange for those goods or services. The pronouncement is effective for fiscal years, and interim periods within those years, beginning after December 15, 2017, and early adoption is not permitted. The Company is currently assessing the impact that adopting this new accounting guidance will have on its consolidated financial statements and footnote disclosures.
	In August 2014, the FASB issued ASU No. 2014-15, Presentation of Financial Statements – Going Concern (Subtopic 205-40): Disclosure of Uncertainties about an Entity's Ability to Continue as a Going Concern, (“ASU 2014-15”). ASU 2014-15 is intended to provide guidance about management's responsibility to evaluate whether there is substantial doubt about an entity's ability to continue as a going concern and to provide related footnote disclosures. Management is required under the new guidance to evaluate whether there are conditions or events, considered in the aggregate, that raise substantial doubt about the entity's ability to continue as a going concern within one year after the date the financial statements are issued when preparing financial statements for each interim and annual reporting period. If conditions or events are identified, the ASU specifies the process that must be followed by management and also clarifies the timing and content of going concern footnote disclosures in order to reduce diversity in practice. The amendments are effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is permitted. The Company does not expect the adoption of ASU 2014-15 to have a material impact on its consolidated financial statements and footnote disclosures.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	3 Months Ended
	Mar. 31, 2015
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Financial Information	Condensed Consolidating Financial Information
	In January 2013, Holdings and Interface Systems, as co-issuers, issued $230.0 million aggregate principal amount of Notes (see Note 7). Pursuant to the indenture governing the Notes, such notes are fully and unconditionally and jointly and severally guaranteed by each of the Company's future domestic restricted subsidiaries and are secured by substantially all of the Company's and the guarantors' existing and future tangible and intangible assets. Separate condensed consolidating information is not included because Interface Systems is a wholly-owned subsidiary and co-issuer of the Notes and Holdings has no independent assets or operations. There are no significant restrictions on the ability of Holdings to obtain funds from its subsidiary. Based on these facts, and in accordance with Securities and Exchange Commission Regulation S-X Rule 3-10, “Financial statements of guarantors and issuers of guaranteed securities registered or being registered,” the Company is not required to provide condensed consolidating financial information for its subsidiary. All consolidated amounts in the Company's financial statements are representative of its subsidiary.

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Policies)	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation
	The consolidated financial statements include the accounts of the Company and its majority owned subsidiaries. All significant transactions and account balances between entities included in the consolidated financial statements have been eliminated in consolidation. The consolidated financial statements reflect all adjustments that are, in the opinion of management, necessary to present a fair statement of the Company’s financial position as of March 31, 2015, and the results of operations for the three months ended March 31, 2015 and 2014. The accompanying consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) and the rules and regulations of the Securities and Exchange Commission (the “SEC”) for interim financial information; accordingly, certain information and footnote disclosures typically included in the Company’s annual financial statements have been condensed or omitted from this report. In management’s opinion, all adjustments necessary for a fair presentation of the Company’s financial position, results of operations and cash flows for the periods disclosed have been made. These unaudited condensed financial statements should be read in conjunction with the financial statements and the notes thereto filed with the Company's Annual Report on Form 10-K for the year ended December 31, 2014, which was filed with the U.S. Securities and Exchange Commission (the “SEC”) on March 31, 2015. Information presented as of December 31, 2014 is derived from audited financial statements. The results of operations for the three months ended March 31, 2015 are not necessarily indicative of the results expected for the full year.
Going Concern	Going Concern
	The accompanying consolidated financial statements have been prepared assuming that the Company will continue as a going concern, which contemplates continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. These consolidated financial statements do not include any adjustments that might result from the occurrence of any of the uncertainties described in the Operating Model and Liquidity section below.
	Management believes that the Company’s current capital resources are adequate to continue operations, maintain its business strategy and grow recurring monthly revenue (“RMR”) for the next twelve months. Based on its current cash projections which includes our expected continued investment in RMR growth activities, the current Contracted Backlog of $1.0 million and new RMR created in 2014 from the Contracted Backlog which will begin to generate positive cash flow impact during 2015, the Company expects to be able to service its debt through the January 2016 interest payment. However, the Company cannot provide assurance that it will achieve positive cash flow during high volume net new RMR growth periods, that no longer investing in creating new RMR and replacing attrition (“Steady State”) will produce sufficient cash flow to meet all of its obligations or that it can raise additional debt and/or equity capital. These factors raise substantial doubt about the Company’s ability to continue as a going concern. The consolidated financial statements do not include any adjustments that might result from the outcome of these uncertainties.
	The Company is engaged in discussions with potential customers for high volume net new RMR growth opportunities. To achieve positive cash flow during high volume RMR growth, management would have to address the cash flow requirements of the Company to complete these new opportunities for the next twelve months and beyond. The Company did not, however, secure any additional financing during the first quarter of 2015 from existing shareholders or otherwise.
Operating Model and Liquidity	Operating Model and Liquidity
	The Company conducts business in one operating segment, which is identified by the Company based on how resources are allocated and operating decisions are made. A majority of the Company’s revenues are generated within the Unites States and a majority of the Company’s long-lived assets are located primarily within the United States. Management evaluates performance and allocates resources based on the Company as a whole. The Company’s business model is based on generating long-term contracts with customers to provide on-going monitoring, maintenance and related services that generate profitable RMR. The Company makes a one-time investment in sales and installation cost to create new customers internally and this investment is not capitalized. The Company generates substantial operating losses as a result of expensing the majority of its investment in subscriber RMR growth.
	The Company incurred direct costs of $25.3 million and $7.8 million to create new RMR of $1.1 million and $0.2 million for the three months ended March 31, 2015 and 2014, respectively. The Company's cash used for operations for the three months ended March 31, 2015 is primarily due to these investments.
	Security technology monitoring companies are generally valued based on a multiple of the RMR associated with the customer contracts and these purchase multiples do vary based on performance metrics, scale and market conditions. Management believes that there is significant value created for the Company’s stockholders resulting from the steady growth in the Company’s RMR at historical investment levels. The Company has demonstrated year-on-year increases in monitoring and managed service revenues from adding new RMR that generates high cash flow margins. As of March 31, 2015, the Company is actively billing approximately $9.3 million of RMR and has a Contracted Backlog of RMR contracts totaling $1.0 million with a majority expected to be installed in 2015.
	In February 2015, the Company successfully negotiated a contract term extension in connection with the SMB and VoIP services for one of the Company’s largest customers. The contract negotiations resulted in a three year term extension of the SMB and VoIP services through December 31, 2019 including a price increase of approximately $118,000 per month in consideration of upgrading the network speed across all stores.
	Throughout the course of the Company’s history, it has been able to adjust the level of RMR growth and related investment based on the capital available. If the Company were to cease its internal growth strategy and go into Steady State, it would likely generate future positive cash flows that could be used to pay down its outstanding debt. Steady State is a generally recognized financial metric often used by industry lenders, investment bankers, credit rating agencies and physical security companies to assess ongoing cash flow generating capabilities of a security company assuming that the company invests only in acquiring new customers to offset attrition and maintain a steady base of RMR.
	During high volume net new RMR growth periods, management cannot provide assurance that the Company will achieve positive cash flow or have the ability to raise additional debt and/or equity capital. In the event that sufficient funds cannot be obtained to grow RMR and pay interest payments, management could elect to operate in Steady State and scale back the RMR growth to a level that would significantly reduce its investment costs. A majority of the expenses related to the sales and marketing activity for new RMR opportunities that was spent in 2015 could be eliminated as well as other fixed overhead and operating costs associated with installing net new RMR and 2015 RMR backlog. Management believes that operating in Steady State would provide the resources necessary to service our debt through the January 2016 interest payment. However, the Company has not operated in Steady State and there is no assurance that moving to Steady State will produce sufficient cash flow to meet all of its obligations.
	In March 2015, the Company received a waiver of any default under its Revolving Credit Facility (as defined below) resulting from the going concern emphasis in the audit report for the year ended December 31, 2014. The Company also entered into a fourth amendment to the Revolving Credit Facility increasing the facility from $45.0 million to $50.0 million. The Company had $32.0 million drawn and $14.0 million available for borrowing under its Revolving Credit Facility at March 31, 2015. As of April 30, 2015, the Company had $34.0 million drawn and $13.4 million available for borrowing under its Revolving Credit Facility. See Note 7.
	The Company used $12.6 million and $15.1 million of cash for operations for the three months ended March 31, 2015 and 2014, respectively, and had negative working capital of $3.4 million as of March 31, 2015 and positive working capital of $20.0 million as of December 31, 2014. In addition, as of March 31, 2015, the Company had $262.0 million of total indebtedness.

Inventories_Tables

Inventories (Tables)	3 Months Ended
	Mar. 31, 2015
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Products	$	6,965	$	10,279
	Work-in-process	7,647		11,376
		$	14,612	$	21,655

Property_and_Equipment_Tables

Property and Equipment (Tables)	3 Months Ended
	Mar. 31, 2015
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	Property and equipment consists of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Subscriber system assets	$	47,423		$	36,880
	Equipment	2,886			2,809
	Vehicles	1,036			1,125
	Software	2,877			2,817
	Furniture and fixtures	544			543
	Leasehold improvements	955			933
		55,721			45,107
	Less: Accumulated depreciation	(19,828		)	(17,389		)
		$	35,893		$	27,718

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Activity for goodwill is set forth as below (in thousands):
	Balance at December 31, 2014	$	40,463
	Additions for current period	—
	Accumulated impairment losses	—
	Balance at March 31, 2015	$	40,463
Schedule of Intangible Assets	Intangible assets are recorded at cost or fair value if acquired in a purchase business combination and consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Alarm monitoring contracts	$	57,075		$	58,044
	Internally developed software	4,347			4,347
	Other	15			15
		61,437			62,406
	Less Accumulated amortization for:
	Alarm monitoring contracts	(36,035		)	(35,662		)
	Internally developed software	(2,618		)	(2,400		)
	Other	(12		)	(12		)
		(38,665		)	(38,074		)
		$	22,772		$	24,332
Schedule of Future Amortization of Intangible Assets	Amortization of intangible assets for the following five years, as of March 31, 2015, is as follows (in thousands):
	Nine months ending December 31, 2015	$	3,917
	2016	4,149
	2017	2,855
	2018	1,995
	2019	1,907
	2020	1,877

Accrued_Expenses_Tables

Accrued Expenses (Tables)	3 Months Ended
	Mar. 31, 2015
Payables and Accruals [Abstract]
Schedule of Accrued Expenses	Accrued expenses consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Payroll and benefit related accruals	$	4,209	$	3,885
	Interest	4,567		9,896
	Other	4,008		3,120
		$	12,784	$	16,901

LongTerm_Debt_Tables

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt consists of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Notes	$	230,000		$	230,000
	Revolving line of credit	32,000			32,000
		$	262,000		$	262,000
Schedule of Debt Maturities	Based upon outstanding indebtedness as of March 31, 2015, aggregate annual maturities on the total borrowings under all debt agreements as of March 31, 2015 are as follows (in thousands):
	Year		Amount
	2015		$	—
	2016		—
	2017		—
	2018		262,000
	2019		—
			$	262,000
Schedule of Deferred Charges	Deferred charges consist of the following at March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Deferred financing fees	$	10,971		$	10,921
	Accumulated amortization	(4,813		)	(4,267		)
		$	6,158		$	6,654

Lease_Commitments_and_Other_Ob1

Lease Commitments and Other Obligations (Tables)	3 Months Ended
	Mar. 31, 2015
Leases [Abstract]
Schedule of Future Minimum Rental Payments Under Operating Leases	At March 31, 2015, the future minimum rental payments required under such leases are as follows (in thousands):
	Nine months ending December 31, 2015	$	2,403
	2016	2,460
	2017	1,693
	2018	1,215
	2019 and thereafter	1,754
		$	9,525
Schedule of Future Minimum Lease Payments Under Capital Leases	At March 31, 2015, the future minimum lease payments under such leases are as follows (in thousands):
	Nine months ending December 31, 2015	$	224
	2016	240
	2017 and thereafter	9
		473
	Less: current portion	(301		)
		$	172

Organization_and_Basis_of_Pres2

Organization and Basis of Presentation (Details) (USD $)	1 Months Ended	3 Months Ended
	Feb. 28, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Mar. 30, 2015	Jan. 31, 2013	Apr. 30, 2015
		segment
Variable Interest Entity [Line Items]
Backlog of RMR contracts		$1,000,000
Number of operating segments		1
Direct costs of recurring monthly revenue		25,300,000	7,800,000
Recurring monthly revenue (RMR)		1,100,000	200,000
Active billing of RMR		9,300,000
Extension of Contractual Services, Period of Time	3 years
Increase (Decrease) in Monthly Revenue, Contractual Agreement	118,000
Net cash used in operating activities		-12,571,000	-15,111,000
Working capital		-3,400,000		20,000,000
Long-term debt, including current portion		262,000,000		262,000,000
Revolving Credit Facility [Member]
Variable Interest Entity [Line Items]
Maximum borrowing capacity				45,000,000	50,000,000	45,000,000
Line of Credit [Member]
Variable Interest Entity [Line Items]
Amount drawn		32,000,000
Amount available for borrowing		14,000,000
Line of Credit [Member] | Subsequent Event [Member]
Variable Interest Entity [Line Items]
Amount drawn							34,000,000
Amount available for borrowing							$13,400,000
SunTx Capital Partners, L.P. [Member] | Interface Master Holdings, Inc. [Member]
Variable Interest Entity [Line Items]
Voting power owned		88.00%
Interface Systems [Member]
Variable Interest Entity [Line Items]
Percent ownership in Interface Systems		100.00%

Inventories_Details

Inventories (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]
Products	$6,965	$10,279
Work-in-process	7,647	11,376
Inventory, net	$14,612	$21,655

Sale_of_Transferred_Assets_Det

Sale of Transferred Assets (Details) (USD $)	0 Months Ended	3 Months Ended
	Jan. 09, 2014	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments of dividends	$27,300,000	$0	$17,912,000
Hawk Security Services Asset Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total purchase price	42,800,000
Purchase price paid in cash	40,700,000
Settlement period	30 days
Hawk Security Services Asset Sale [Member] | Restricted Cash [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price deposited in escrow	$2,100,000			$2,000,000

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$55,721		$45,107
Less: Accumulated depreciation	-19,828		-17,389
Property and equipment, net	35,893		27,718
Depreciation expense	3,018	2,450
Subscriber system assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	47,423		36,880
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,886		2,809
Leased vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,036		1,125
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,877		2,817
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	544		543
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$955		$933

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Activity for Goodwill (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Goodwill [Roll Forward]
Beginning balance	$40,463
Additions for current period	0
Accumulated impairment losses	0
Ending balance	$40,463

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Intangible Assets (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$61,437		$62,406
Intangible assets, accumulated amortization	-38,665		-38,074
Intangible assets, net	22,772		24,332
Amortization	1,560	2,372
Alarm monitoring contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	57,075		58,044
Intangible assets, accumulated amortization	-36,035		-35,662
Internally developed software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	4,347		4,347
Intangible assets, accumulated amortization	-2,618		-2,400
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	15		15
Intangible assets, accumulated amortization	($12)		($12)

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Future Amortization of Intangible Assets (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
Nine months ending December 31, 2015	$3,917
2016	4,149
2017	2,855
2018	1,995
2019	1,907
2020	$1,877

Accrued_Expenses_Details

Accrued Expenses (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Payables and Accruals [Abstract]
Payroll and benefit related accruals	$4,209	$3,885
Interest	4,567	9,896
Other	4,008	3,120
Accrued expenses	$12,784	$16,901

LongTerm_Debt_Schedule_of_Long

Long-Term Debt - Schedule of Long-term Debt (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term debt	$262,000
Long-term debt, including current portion	262,000	262,000
Senior secured notes [Member]
Debt Instrument [Line Items]
Long-term debt	230,000	230,000
Revolving line of credit [Member]
Debt Instrument [Line Items]
Long-term debt	$32,000	$32,000

LongTerm_Debt_Schedule_of_Debt

Long-Term Debt - Schedule of Debt Maturities (Details) (USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Contractual Obligation, Fiscal Year Maturity Schedule
2015	$0
2016	0
2017	0
2018	262,000
2019	0
Long-term debt, including current portion	$262,000

LongTerm_Debt_Schedule_of_Defe

Long-Term Debt - Schedule of Deferred Charges (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
Deferred financing fees	$10,971	$10,921
Accumulated amortization	-4,813	-4,267
Deferred financing fees, net	$6,158	$6,654

LongTerm_Debt_Narrative_Detail

Long-Term Debt - Narrative (Details) (USD $)	3 Months Ended		1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Jan. 31, 2013	Mar. 30, 2015	Dec. 31, 2014	Aug. 15, 2014	16-May-14
Debt Instrument [Line Items]
Amortization of financing fees	$546,000	$546,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			45,000,000	50,000,000	45,000,000
Revolving Credit Facility [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Covenant terms, recurring monthly revenue ratio			5
Covenant terms, fixed-charge coverage ratio			1.25
Covenant, maximum gross attrition rate			13.00%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Line of credit, interest rate at period end	3.75%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Initial Spread [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on LIBOR	0.50%
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Additional Spread [Member] | Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on LIBOR	3.25%
Line of Credit [Member]
Debt Instrument [Line Items]
Amount drawn	32,000,000
Amount available for borrowing	14,000,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			1,000,000
Amount drawn	100,000				100,000
Senior secured notes [Member]
Debt Instrument [Line Items]
Senior secured notes, bid price	100.25
Senior secured notes, ask price	101.25
Senior secured notes [Member] | Fair Value, Inputs, Level 2 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Fair value of debt	230,600,000				230,000,000
Senior secured notes [Member] | Fair Value, Inputs, Level 2 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Fair value of debt	232,900,000				234,600,000
Senior secured notes [Member] | Senior Secured Notes Due 2018 [Member]
Debt Instrument [Line Items]
Face amount of debt issued			230,000,000
Stated interest rate			9.25%
Senior secured notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						$5,000,000
Senior secured notes [Member] | Revolving Credit Facility [Member] | Senior Contingent Cash Pay Notes of Master Holdings, 12.50% [Member]
Debt Instrument [Line Items]
Stated interest rate							12.50%
Payment in Kind (PIK) Note [Member] | Revolving Credit Facility [Member] | Senior Contingent Cash Pay Notes of Master Holdings, 14.50% [Member]
Debt Instrument [Line Items]
Stated interest rate							14.50%

Income_Taxes_Details

Income Taxes (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$218	($2,311)
Effective income tax rate	1.32%	-9.10%

Mezzanine_Equity_Details

Mezzanine Equity (Details) (USD $)	0 Months Ended		3 Months Ended		5 Months Ended
	30-May-14	Jan. 09, 2014	Mar. 31, 2015	Mar. 31, 2014	29-May-14	Dec. 31, 2014	31-May-14	Jun. 30, 2014
Temporary Equity [Line Items]
Proceeds of issuance from common stock	$71,600,000
Preferred stock dividends accrued at the annual rate					10.00%
Payments of dividends		27,300,000	0	17,912,000
Redeemable Class A Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)			70,000		70,000	70,000
Mezzanine equity, par value (in dollars per share)			$1		1	$1
Redeemable Class C Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)			60,000		60,000	60,000
Mezzanine equity, par value (in dollars per share)			$1		1	$1
Number of shares of Class A common stock to be issued upon conversion					1
Number of shares of Class C preferred stock to be issued upon conversion					1
Convertible and Redeemable Class E Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)			50,000		50,000	50,000
Mezzanine equity, par value (in dollars per share)			$1		1	$1
Convertible and Redeemable Class F Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)					50,000
Mezzanine equity, par value (in dollars per share)					1
Preferred stock dividends accrued at the annual rate					12.90%
Redeemable Class G Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)					5,000
Mezzanine equity, par value (in dollars per share)					1
Interface Master Holdings, Inc. [Member] | Common Stock [Member]
Temporary Equity [Line Items]
Ownership percentage by parent							99.00%
Interface Master Holdings, Inc. [Member] | Preferred Stock [Member]
Temporary Equity [Line Items]
Ownership percentage by parent							99.00%
Interface Master Holdings, Inc. [Member] | All Classes of Common and Preferred Stock [Member]
Temporary Equity [Line Items]
Ownership percentage by parent			100.00%					100.00%
Senior secured notes [Member] | Interface Master Holdings, Inc. [Member]
Temporary Equity [Line Items]
Face amount of debt issued	$115,000,000

Stockholders_Equity_Details

Stockholders' Equity (Details) (USD $)	Dec. 13, 2001	Mar. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Notes receivable, related party	$250,000
Common Class A [Member]
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		3,000,000	3,000,000
Common stock, par value (in dollars per share)		$0.01	$0.01
Common Class B [Member]
Class of Stock [Line Items]
Common stock, shares authorized (in shares)		1,500,000	1,500,000
Common stock, par value (in dollars per share)		$0.01	$0.01

Benefit_Plan_Details

Benefit Plan (Details) (Plan [Member], USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
	age
Plan [Member]
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Age Requirement	21
Defined Contribution Plan, Requisite Service Period	6 months
Defined Contribution Plan, Employer Discretionary Contribution Amount	$0.20	$0

Lease_Commitments_and_Other_Ob2

Lease Commitments and Other Obligations (Details) (USD $)	3 Months Ended		0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 19, 2015	Dec. 31, 2014
Operating Leases, Future Minimum Rental Payments Due
Nine months ending December 31, 2015	$2,403,000
2016	2,460,000
2017	1,693,000
2018	1,215,000
2019 and thereafter	1,754,000
Operating leases, future minimum rental payments due	9,525,000
Operating leases, rent expense	2,100,000	1,500,000
Capital Leases, Future Minimum Rental Payments Due
Nine months ending December 31, 2015	224,000
2016	240,000
2017 and thereafter	9,000
Capital leases, future minimum rental payments due	473,000
Less: current portion	-301,000
Capital leases, future minimum payments, less current portion	172,000
Capital leases for equipment and vehicles	2,100,000			2,200,000
Accumulated depreciation for capital leased assets	1,500,000			1,500,000
Purchase of Inventory and Managed Support Services [Member]
Debt Instrument [Line Items]
Face amount of debt issued			900,000
Debt Instrument, Term			24 months
Notes Payable, Other Payables [Member] | Non-Interest Bearing [Member]
Debt Instrument [Line Items]
Financing arrangement for purchase of inventory	3,700,000			3,900,000
Financing arrangement for purchase of inventory, current portion	$2,200,000			$1,800,000
Minimum [Member]
Debt Instrument [Line Items]
Long-term Purchase Commitment, Period	24 months
Maximum [Member]
Debt Instrument [Line Items]
Long-term Purchase Commitment, Period	36 months

Concentrations_of_Credit_Risk_1

Concentrations of Credit Risk and Significant Customers (Details) (USD $)	3 Months Ended	12 Months Ended	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Concentration Risk [Line Items]
Number of Major Customers	2		2
Vendor Concentration Risk [Member] | Purchases [Member]
Concentration Risk [Line Items]
Concentration risk percentage	29.00%	16.50%
Vendor Concentration Risk, Subscriber System Assets [Member]
Concentration Risk [Line Items]
Payments to suppliers	7.5		$1.50
Accounts payable	2.8		0.7
Vendor Concentration Risk, Subscriber System Assets [Member] | Purchases [Member]
Concentration Risk [Line Items]
Concentration risk percentage	23.60%	6.40%
Vendor Concentration Risk, Security Alarm and Managed Services Industry [Member]
Concentration Risk [Line Items]
Payments to suppliers	1.7		2.4
Accounts payable	3		$2
Vendor Concentration Risk, Security Alarm and Managed Services Industry [Member] | Purchases [Member]
Concentration Risk [Line Items]
Concentration risk percentage	5.40%		10.10%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member] | Customer One [Member]
Concentration Risk [Line Items]
Concentration risk percentage	20.60%		19.10%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member] | Customer Two [Member]
Concentration Risk [Line Items]
Concentration risk percentage	15.80%		6.90%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member]
Concentration Risk [Line Items]
Concentration risk percentage	32.50%		20.50%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]
Concentration Risk [Line Items]
Concentration risk percentage	16.30%		5.30%

Related_Party_Details

Related Party (Details) (USD $)	1 Months Ended	3 Months Ended		1 Months Ended	2 Months Ended
	Feb. 28, 2015	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2015	Jan. 20, 2015	Jun. 30, 2014
Related Party Transaction [Line Items]
Extension of Contractual Services, Period of Time	3 years
Increase (Decrease) in Monthly Revenue, Contractual Agreement	$118,000
SunTx Management [Member]
Related Party Transaction [Line Items]
Term of management agreement		10 years
Notice period for termination of management agreement		90 days
Annual management services fees to be paid under Management Agreement		500,000			500,000
Equity transaction fee to be paid under Management Agreement, as a percentage of the total enterprise value involved in the transaction		2.00%
Management Agreement, Requirements, Minimum Amount of Additional Indebtedness Allowed		1			1
SunTx Management [Member] | Fees Paid Under Management Agreement [Member]
Related Party Transaction [Line Items]
Related party transactions, expenses			100,000
Former employee and shareholder [Member] | Settled Litigation [Member]
Related Party Transaction [Line Items]
Non-interest bearing loan to former employee and shareholder			500,000	500,000
Percentage of common stock owned by related party secured by pledge agreement				50.00%
Number of shares of common stock owned by related party			2,074.02	2,074.02
Percentage of common stock outstanding owned by related party			7.00%	7.00%
Former Senior Executive and Current Shareholder [Member]
Related Party Transaction [Line Items]
Contractual Obligation						1,200,000
Sales Commissions and Fees					$400,000
Interface Master Holdings, Inc. [Member] | All Classes of Common and Preferred Stock [Member]
Related Party Transaction [Line Items]
Ownership percentage by parent		100.00%			100.00%		100.00%

Recently_Issued_Accounting_Sta1

Recently Issued Accounting Standards - Narrative (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounting Changes and Error Corrections [Abstract]
Deferred charges	$6,158	$6,654

Condensed_Consolidating_Financ1

Condensed Consolidating Financial Information (Details) (Senior Secured Notes Due 2018 [Member], Senior secured notes [Member], USD $)	Jan. 31, 2013
Senior Secured Notes Due 2018 [Member] | Senior secured notes [Member]
Condensed Balance Sheet Statements, Captions [Line Items]
Face amount of debt issued	$230,000,000