Interface Security Systems 10-K 31 Mar 15 2014 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information Document (USD $)	12 Months Ended
	Dec. 31, 2014	Jun. 30, 2014
Document Information [Line Items]
Entity Registrant Name	INTERFACE SECURITY SYSTEMS HOLDINGS INC
Entity Central Index Key	1164255
Document Type	10-K
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Document Period End Date	31-Dec-14
Amendment Flag	FALSE
Current Fiscal Year End Date	-19
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Public Float		$0
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
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

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$25,833,000	$361,000
Restricted cash	0	2,000,000
Accounts receivable, less allowance for doubtful accounts of $1,105 and $955	11,964,000	10,504,000
Inventories	21,655,000	6,881,000
Prepaid expenses and other assets	3,460,000	1,694,000
Assets held for sale	0	4,233,000
Total current assets	62,912,000	25,673,000
Property and equipment, net	27,718,000	20,506,000
Intangible assets, net	24,332,000	32,848,000
Goodwill	40,463,000	40,463,000
Deferred charges	6,654,000	8,838,000
Other assets	7,216,000	0
Total assets	169,295,000	128,328,000
Current liabilities
Current portion of capital leases and other obligations	2,126,000	279,000
Accounts payable	18,070,000	13,625,000
Accrued expenses	16,901,000	15,199,000
Customer deposits	2,375,000	2,431,000
Deferred revenue	3,419,000	3,084,000
Liabilities held for sale	0	1,355,000
Total current liabilities	42,891,000	35,973,000
Long-term deferred revenue	2,826,000	2,863,000
Deferred tax liability	8,088,000	7,494,000
Capital leases and other obligations	2,280,000	39,000
Long-term debt	262,000,000	256,500,000
Total liabilities	318,085,000	302,869,000
Mezzanine equity
Total mezzanine equity	163,399,000	183,956,000
Stockholders’ deficit
Related party notes receivable	0	-100,000
Additional paid-in-capital	71,564,000	0
Accumulated deficit	-383,789,000	-358,397,000
Total stockholders’ deficit	-312,189,000	-358,497,000
Total liabilities and stockholders’ deficit	169,295,000	128,328,000
Redeemable Class A Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	110,284,000	105,720,000
Redeemable Class C Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	41,154,000	39,524,000
Convertible and Redeemable Class E Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	11,961,000	25,073,000
Convertible and Redeemable Class F Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	0	4,995,000
Redeemable Class G Preferred Stock [Member]
Mezzanine equity
Total mezzanine equity	0	8,644,000
Common Class A [Member]
Stockholders’ deficit
Value of common stock	26,000	0
Common Class B [Member]
Stockholders’ deficit
Value of common stock	$10,000	$0

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Allowance for doubtful accounts	$1,105	$955
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	11,060
Convertible and Redeemable Class F Preferred Stock [Member]
Mezzanine equity, par value (in dollars per share)		$1
Mezzanine equity, shares authorized (in shares)		5,000
Mezzanine equity, shares outstanding (in shares)		2,455
Redeemable Class G Preferred Stock [Member]
Mezzanine equity, par value (in dollars per share)		$1
Mezzanine equity, shares authorized (in shares)		5,000
Mezzanine equity, shares outstanding (in shares)		1,711
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	21,677
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	8,043

Consolidated_Statement_of_Oper

Consolidated Statement of Operations (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Revenue
Services	$106,501	$111,520	$98,192
Products	16,346	15,222	12,253
Total revenue	122,847	126,742	110,445
Costs and Expenses
Cost of services	94,273	86,902	65,961
Cost of products	14,333	15,659	12,545
General and administrative expenses	26,946	25,776	24,739
Amortization	8,516	10,761	10,016
Depreciation	9,879	10,121	7,898
Loss on extinguishment of debt	0	572	0
Loss on sale of long-lived assets	1,719	109	16
Gain on sale of Transferred Assets	-39,715	0	0
Total costs and expenses	115,951	149,900	121,175
Income (loss) from operations	6,896	-23,158	-10,730
Interest expense	-24,529	-23,954	-18,095
Interest income	8	14	15
Loss before provision for income taxes	-17,625	-47,098	-28,810
Provision for income taxes	-1,038	-722	-521
Net loss	-18,663	-47,820	-29,331
Net loss attributable to noncontrolling interest	0	30	39
Net loss attributable to Interface Security Systems Holdings, Inc.	-18,663	-47,790	-29,292
Net loss attributable to common stockholders	-25,392	-65,685	-45,489
Redeemable Class A Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	-4,564	-10,411	-9,432
Redeemable Class C Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	-1,630	-3,717	-3,368
Convertible and Redeemable Class E Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	-502	-2,358	-2,136
Convertible and Redeemable Class F Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	-14	-596	-524
Redeemable Class G Preferred Stock [Member]
Costs and Expenses
Dividends accrued on preferred stock	($19)	($813)	($737)

Consolidated_Statement_of_Chan

Consolidated Statement of Changes in Stockholders' Deficit (USD $)	Total	Common Class A [Member]	Common Class B [Member]	Common Stock [Member]	Common Stock [Member]	Additional paid-in Capital [Member]	Related Party Receivables [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]
In Thousands, except Share data, unless otherwise specified	USD ($)			Common Class A [Member]	Common Class B [Member]	USD ($)	USD ($)	USD ($)	USD ($)
				USD ($)	USD ($)
Balances, beginning of period at Dec. 31, 2011	($247,205)			$0	$0	$0	($124)	($246,992)	($89)
Balances, beginning of period (in shares) at Dec. 31, 2011				22,000	8,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends accrued on preferred stock	-16,197							-16,197
Net loss	-29,331							-29,292	-39
Balances, end of period at Dec. 31, 2012	-292,733			0	0	0	-124	-292,481	-128
Balances, end of period (in shares) at Dec. 31, 2012				22,000	8,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends accrued on preferred stock	-17,895							-17,895
Net loss	-47,820							-47,790	-30
Purchase of noncontrolling interest	-73							-231	158
Repayments on related party notes	24						24
Balances, end of period at Dec. 31, 2013	-358,497			0	0	0	-100	-358,397	0
Balances, end of period (in shares) at Dec. 31, 2013		21,677	8,043	22,000	8,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends accrued on preferred stock	-6,729							-6,729	0
Net loss	-18,663							-18,663	0
Repayments on related party notes	100						100		0
Issuance of common stock	71,600			26	10	71,564			0
Issuance of common stock (in shares)				2,611,000	969,000
Balances, end of period at Dec. 31, 2014	($312,189)			$26	$10	$71,564	$0	($383,789)	$0
Balances, end of period (in shares) at Dec. 31, 2014		2,632,840	976,880	2,633,000	977,000

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities
Net loss	($18,663)	($47,820)	($29,331)
Adjustments to reconcile net loss to net cash used in operating activities
Amortization	8,516	10,761	10,016
Depreciation	9,879	10,121	7,898
Amortization of deferred charges	2,184	2,226	2,630
Deferred tax liability	594	569	433
Loss on sale of long-lived assets	1,719	109	16
Gain on sale of Transferred Assets	-39,715	0	0
Loss on extinguishment of debt	0	572	0
Change in operating assets and liabilities
Accounts receivable	-1,557	-2,008	-923
Inventories	-9,608	348	-3,773
Prepaid expenses, notes receivable and other assets	-6,998	-710	248
Accounts payable	6,846	1,281	2,828
Accrued expenses	1,618	4,375	1,115
Customer deposits	-501	-75	798
Deferred revenue	833	896	1,785
Net cash used in operating activities	-44,853	-19,355	-6,260
Cash flows from investing activities
Capital expenditures, subscriber system assets	-17,503	-15,471	-7,894
Capital expenditures, other	-1,501	-1,302	-845
Acquisition of business, net of cash required	0	0	-48,237
Proceeds from sale of property and equipment	332	0	77
Proceeds from sale of Transferred Assets	40,799	87	0
Change in restricted cash	2,000	-2,000	0
Net cash provided by (used in) investing activities	24,127	-18,686	-56,899
Cash flows from financing activities
Proceeds from debt	0	230,000	66,243
Payments on debt	0	-210,378	0
Proceeds from Revolving Credit Facility	5,500	28,500	0
Payments on capital leases and other obligations	-3,716	-592	-598
Repayments on related party notes	100	24	0
Proceeds of issuance from common stock	71,600	0	0
Dividends paid on preferred stock	-17,912	0	0
Redemption of preferred stock	-9,374	0	0
Deferred charges	0	-10,653	-1,853
Purchase of noncontrolling interest	0	-73	0
Other, net	0	0	13
Net cash provided by financing activities	46,198	36,828	63,805
Net increase (decrease) in cash	25,472	-1,213	646
Cash and cash equivalents
Beginning of period	361	1,574	928
End of period	25,833	361	1,574
Supplemental Disclosures
Cash paid for interest	22,502	14,673	13,312
Cash paid for taxes	180	180	161
Noncash items
Capital expenditures in accounts payable	209	611	440
Acquisition of inventory through financing arrangements	5,281	0	448
Acquisition of managed support services through financing arrangements	1,984	0	0
Acquisition of equipment through capital leases	539	0	339
Redeemable Class A Preferred Stock [Member]
Noncash items
Dividends Payable	-4,564	-10,411	-9,432
Redeemable Class C Preferred Stock [Member]
Noncash items
Dividends Payable	-1,630	-3,717	-3,368
Convertible and Redeemable Class E Preferred Stock [Member]
Noncash items
Dividends Payable	-502	-2,358	-2,136
Convertible and Redeemable Class F Preferred Stock [Member]
Noncash items
Dividends Payable	-14	-596	-524
Redeemable Class G Preferred Stock [Member]
Noncash items
Dividends Payable	($19)	($813)	($737)

Organization_and_Basis_of_Pres

Organization and Basis of Presentation	12 Months Ended
	Dec. 31, 2014
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 over 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”. In the third quarter of 2013, Holdings acquired all of the remaining noncontrolling interest in The Greater Alarm Company, Inc. (“GAC”) and merged Westec (as defined below) and GAC into Interface Systems.
	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”) during the year ending December 31, 2015. Based on its current cash projections which includes our expected continued investment in RMR growth activities, the current Contracted Backlog of $2.0 million and new RMR created from the Family Dollar deployment which will begin to generate significant 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.
	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 United States and a majority of the Company’s long-lived assets are located 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 costs to create new customers internally and this investment is not generally capitalized. The Company generates substantial operating losses as a result of expensing the majority of its investment in subscriber RMR growth.
	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 and debt holders resulting from the steady growth in the Company’s RMR at historical investment levels. Management believes that there is significant value created for the Company’s stockholders resulting from the steady growth in its 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. Management also believes this enhances the Company’s ability to service debt obligations. As of December 31, 2014, the Company is actively billing approximately $8.4 million of RMR and has a Contracted Backlog of RMR contracts totaling $2.0 million of which a majority is expected to be installed in the first six months of 2015. The related equipment and materials have been procured for the Contracted Backlog.
	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 note, subordinated notes payable and the fees and expenses associated with the offering. In addition, the Company had $32.0 million drawn and $9.4 million available for borrowing under the Revolving Credit Facility (as defined below) at December 31, 2014. See Note 9.
	The Company used $44.9 million, $19.4 million, and $6.3 million of cash for operations for the years ended December 31, 2014, 2013 and 2012, respectively, and had positive working capital of $20.0 million as of December 31, 2014 and negative working capital of $13.2 million (excluding assets and liabilities held for sale) as of December 31, 2013. In addition, as of December 31, 2014, the Company had $266.4 million of total indebtedness.
	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 $21.1 million in expenses related to the sales and marketing activity for new RMR opportunities that was spent in 2014 could be eliminated as well as other fixed overhead and operating costs associated with installing net new RMR and 2014 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.
	On March 30, 2015, the Company received a waiver from Capital One 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 with Capital One increasing the facility from $45.0 million to $50.0 million.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies
	The significant accounting policies followed by the Company in the preparation of its consolidated financial statements are described below and are in conformity with accounting principles generally accepted in the United States of America (“GAAP”).
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its majority owned subsidiaries, which are all 100% owned as of December 31, 2014 and December 31, 2013. All significant transactions and account balances between entities included in the consolidated financial statements have been eliminated in consolidation.
	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingencies. Estimates are based on several factors including the facts and circumstances available at the time the estimates are made. Actual results could differ from those estimates. Some of the more significant estimates include the useful lives for and recoverability of tangible and intangible assets, purchase price allocations of acquired businesses and income taxes.
	Revenue Recognition
	The Company’s policy is to recognize revenue when it is realized or realizable and it is earned. The Company considers revenue realized or realizable and earned when risk of loss transfers, persuasive evidence of an arrangement exists, the price to the buyer is fixed and determinable, and collectability is reasonably assured. Service revenues for monitoring, maintenance or other service contracts are recognized ratably as services are rendered over the term of each customer agreement. Customer billings for services not yet rendered are deferred and recognized as revenue when the services are rendered and are included in deferred revenue in the consolidated balance sheets.
	Transactions for which the Company retains ownership of the alarm, secured managed broadband (“SMB”), VoIP or other system, revenues associated with the equipment and their related subscription monitoring or maintenance contracts, any set up fee and initial direct costs are deferred and are amortized on a straight-line basis over the longer of the estimated customer life or the initial term of the related contract. The related installation costs (labor, equipment, subcontractor labor, etc.) are capitalized into subscriber system assets and are amortized on a straight-line basis over the initial term of the customer contract.
	Arrangements involving the sale of alarm, SMB, VoIP or other systems, as well as other services to the customer can be considered to have multiple elements, including the sale of equipment, installation, monitoring and/or maintenance services. We assess our revenue arrangements to determine the appropriate units of accounting. Once the units of accounting are properly determined, we evaluate the hierarchy of Vendor Specific Objective Evidence (“VSOE”), Third Party Evidence (“TPE”) and Best Estimate of Selling Price (“BESP”) to determine the appropriate selling price for each unit of accounting. VSOE of selling price is based on the price charged when the element is sold separately. TPE of selling price is established by evaluating largely interchangeable competitor products or services in stand-alone sales to similarly situated customers. BESP is established considering multiple factors, including, but not limited to, pricing practices in different geographies, gross margin objectives and internal costs. Some of the Company's offerings contain a significant element of proprietary technology and provide substantially unique features and functionality. As a result, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, the Company is unable to reliably determine what competitors products’ selling prices are on a stand-alone basis and typically not able to determine TPE for such products. Therefore BESP is used for such products in the selling price hierarchy for allocating the total arrangement consideration. BESP reflects the Company's best estimate of what the selling prices of each deliverable would be if it were sold regularly on a standalone basis taking into consideration the cost structure of its business, technical skill required, customer location and other market conditions.
	Once the selling prices for all units of accounting are identified, the arrangement consideration is allocated to those separate units based on their relative selling prices. In those types of arrangements, the revenues associated with the equipment and installation services are limited to amounts that are not contingent upon the delivery of the monitoring and/or maintenance services.
	For transactions in which we install alarm, SMB, VoIP or other systems without any contracted future services, revenue is recognized upon completion of the installation.
	Provisions for certain rebates, refunds and discounts to customers are accounted for as reductions in revenue in the same period the related revenue is recorded based on sales terms and historical experience. Refunds occur in limited circumstances and only after all attempts to resolve customer concerns have been exhausted. Amounts that the Company has refunded during fiscal years 2014, 2013 and 2012 were not material.
	Other Comprehensive Income
	As noted in the statement of operations, the Company did not recognize any other comprehensive income during 2014, 2013 and 2012.
	Cash and Cash Equivalents
	All amounts reported as cash and cash equivalents on the Company’s consolidated balance sheets represent cash or deposits and investments, which are available on demand to the Company with original maturities at the time of purchase of three months or less. Additionally, we had $2.0 million of restricted cash as of December 31, 2013 related to amounts placed in escrow pursuant to the sale of the Transferred Assets (as defined below). See Note 4.
	Accounts Receivable
	Accounts receivable represents amounts due from customers on sales, installations, monitoring and maintenance contracts that have been adjusted for estimated uncollectible amounts. The Company grants credit to customers and does not require collateral for its accounts receivable. As security, the customer signs a binding agreement before any services are performed and payment for services is billed in advance. The allowance for doubtful accounts receivable reflects the best estimate of probable losses inherent in the Company’s receivable portfolio determined on the basis of historical experience and other currently available evidence. Accounts are considered for write-off when they become past due and when it is determined that the probability of collection is remote. The allowance for uncollectible accounts receivables was $1.1 million and $1.0 million at December 31, 2014 and 2013, respectively.
	Inventories
	Inventories are stated at the lower of cost, determined under the first-in, first-out (FIFO) method, or market. Inventories include the cost of materials, direct labor and work in progress. Obsolete or excess inventories are reflected at their estimated realizable values.
	Property and Equipment
	Property and equipment acquired through acquisition, is recorded at estimated fair market value under the purchase method of accounting as of the acquisition date. Additions to property and equipment subsequent to the acquisition date are recorded at cost. The Company capitalizes direct labor and related overhead costs associated with Company-owned monitoring systems installed on subscriber premises. In addition to equipment, direct labor and related overhead costs capitalized for the years ended December 31, 2014, 2013 and 2012 was $17.1 million, $15.6 million and $7.9 million, respectively. Management evaluates long-lived assets, including property and equipment, for impairment when events or changes in circumstances indicate that the carrying value of such assets may not be recoverable. Whether impairment has occurred is determined by comparing the estimated undiscounted cash flows attributable to the assets with the carrying value of the assets. If the carrying value exceeds the undiscounted cash flows, management recognizes the amount of the impairment by estimating the fair value of the assets and recording a provision for loss. The Company has determined there are no events or changes in circumstances that indicate that the carrying value may not be recoverable as of December 31, 2014 and 2013.
	Certain leased property is capitalized in accordance with authoritative accounting guidance and the present value of the related minimum lease payments is recorded as a liability, using interest rates appropriate at the inception of each lease. Amortization of capital leased assets is computed on the straight-line method over the life of the asset.
	Expenditures for maintenance, repairs and minor renewals are expensed as incurred; expenditures for betterments and major renewals, which substantially increase the useful life of the asset, are capitalized. When assets are retired or otherwise disposed of, their cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in operating results.
	The Company provides for depreciation using the straight-line method based upon estimated useful lives of the assets as follows:
		Years
	Subscriber system assets	3 to 7
	Leasehold improvements	5 to 10
	Software	3 to 5
	Furniture, fixtures and equipment	5 to 7
	Vehicles	3 to 5
	Goodwill and Intangible Assets
	Goodwill results from the excess purchase price of an acquisition over the fair value of the net assets acquired and is not amortized. It is tested for impairment annually, or more frequently as warranted by events or changes in circumstances. In testing goodwill for impairment, the Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the estimated fair value of the reporting unit is less than its carrying amount. If the Company elects to perform a qualitative assessment and determines that an impairment is more likely than not, a two-step, quantitative impairment test is then required, otherwise no further analysis is required. The Company also may elect not to perform the qualitative assessment and, instead, proceed directly to the quantitative impairment test.
	The Company elected to perform a quantitative assessment for its goodwill impairment testing and concluded that goodwill is not impaired. Under the quantitative impairment test, the Company compares the fair value of its reporting unit with its carrying amount. The estimated fair value of the reporting unit used in the goodwill impairment test is determined utilizing market indicators of the Company's RMR multiple. Based on quantitative evaluations performed by the Company, management believes no impairment exists in the carrying value of its goodwill or other indefinite-lived intangible assets at December 31, 2014 and 2013.
	The Company’s alarm monitoring contracts, which were acquired through acquisitions are amortized on a straight-line basis over periods ranging from 10 to 12 years.
	Nonsolicitation agreements, which arose in connection with acquisitions are amortized over the lives of the agreements, which range from 2 to 10 years.
	Deferred Charges
	Deferred charges consist of costs related to borrowings and are deferred and amortized to interest expense over the terms of the related borrowing. Deferred charges in the accompanying consolidated balance sheets are shown at cost, net of accumulated amortization.
	Customer Deposits
	Customer deposits represent cash advances received from customers for installing alarm monitoring systems and customer payments for RMR services prior to being invoiced.
	Deferred Revenue
	Deferred revenue represents advance billings for customer monitoring, maintenance and managed services under contract terms. Revenue is recognized ratably over the period of service associated with the payment. For transactions in which we retain ownership of the system, any amounts collectible upfront are deferred and amortized over the longer of the estimated customer life or the initial term of the contract.
	Fair Values of Financial Instruments
	The carrying amounts of cash, accounts receivable, accounts payable and accrued expenses approximates fair value due to the short-term maturities of these assets and liabilities. See Note 9 for the estimated fair value of the Notes.
	Income Taxes
	The Company accounts for income taxes under the provisions of Financial Accounting Standards Board (“FASB”) ASC 740, Income Taxes (“ASC 740”), which requires the use of the asset and liability method of accounting for income taxes. The current and deferred tax consequences of a transaction are measured by applying the provisions of enacted tax laws to determine the amount of taxes payable currently or in future years. Deferred income taxes are provided for temporary differences between income tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. A valuation allowance reduces deferred tax assets when management determines it is “more likely than not” that some portion or all of the deferred tax assets will not be realized.
	ASC 740 also clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. ASC 740 provides guidance on derecognition, classification, interest and penalties, accounting for interim periods, disclosure and transition.

Acquisition

Acquisition	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Acquisition	Acquisition
	In March 2012, the Company merged a newly formed subsidiary company with Westec for cash consideration and a note payable to the seller. The acquisition was accounted for under the purchase method of accounting and was financed by the note payable to the seller and borrowings under the Revolving Credit Facility.
	The purchase price allocation recorded in connection with the acquisition is as follows (in thousands):
	Cash and cash equivalents	$	1,087
	Accounts receivable	2,881
	Inventories	740
	Prepaid expenses, other assets	73
	Property and equipment	5,098
	Alarm monitoring contracts	22,500
	Internally developed software	4,347
	Goodwill	16,905
	Nonsolicitation agreements	1,320
	Accounts payable	(1,321		)
	Accrued expenses	(4,306		)
	Total consideration	$	49,324
	The final purchase price was based on a third-party valuation analysis. The weighted average amortization period assigned to the alarm monitoring contracts is 12 years and internally developed software is 5 years. The merger with Westec has provided for an increase in goodwill due to anticipated synergies, operating efficiencies and cost savings to be realized. The goodwill recorded in connection with this acquisition is not deductible for tax purposes.
	The following unaudited pro forma financial information of the Company is based on the historical consolidated financial statements of the Company and the historical consolidated financial statements of Westec and is intended to provide information about how the Westec Acquisition and related financing may have affected the Company’s historical consolidated financial statements if they had closed as of beginning of the prior fiscal year. The unaudited pro forma financial information below is based on available information and assumptions that the Company believes are reasonable. The unaudited pro forma financial information is for illustrative and informational purposes only and is not intended to represent or be indicative of what the Company’s financial condition or results of operations would have been had the transactions described above occurred on the date indicated. The unaudited pro forma financial information also should not be considered representative of the Company’s future financial condition or results of operations.
		Year Ended December 31,
		2012
	Revenues	$	117,335
	Net Loss	$	(30,545	)

Sale_of_Transferred_Assets

Sale of Transferred Assets	12 Months Ended
	Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]
Sale of Transferred Assets	Sale of Transferred Assets
	Pursuant to an Asset Purchase Agreement (the “Hawk 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 Interface Systems 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 sheets as of December 31, 2013. The funds remained in escrow for six 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 Hawk 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 six 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 its stockholders as permitted under the indenture governing the Notes.
	As of December 31, 2013, the Transferred Assets met the criteria for assets held for sale under FASB ASC 360, Property, Plant and Equipment. As such, the assets and liabilities to be sold were reclassified as held for sale. Assets held for sale on the Company’s balance sheets as of December 31, 2013 included accounts receivable of approximately $0.3 million, inventory of $0.3 million and property, plant and equipment of $3.6 million. Liabilities held for sale on the Company’s balance sheets as of December 31, 2013 included accrued expenses of $0.1 million, customer deposits of $0.5 million, and deferred revenue of $0.8 million.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Inventories	Inventories
	Inventories consist of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014		December 31, 2013
	Products	$	10,279	$	2,858
	Work-in-process	11,376		4,023
		$	21,655	$	6,881

Property_and_Equipment

Property and Equipment	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Property and Equipment	Property and Equipment
	Property and equipment consists of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Subscriber system assets	$	36,880		$	31,664
	Equipment	2,809			4,044
	Vehicles	1,125			1,759
	Software	2,817			3,938
	Furniture and fixtures	543			757
	Leasehold improvements	933			1,177
		45,107			43,339
	Less: Accumulated depreciation	(17,389		)	(22,833		)
		$	27,718		$	20,506
	Depreciation expense was $9.9 million, $10.1 million and $7.9 million for the years ended December 31, 2014, 2013 and 2012, respectively.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2014
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, 2012	$	40,463
	Additions for current year additions	—
	Accumulated impairment losses	—
	Balance at December 31, 2013	$	40,463
	Additions for current period	—
	Accumulated impairment losses	—
	Balance at December 31, 2014	$	40,463
	Intangible assets are recorded at cost or fair value if acquired in a purchase business combination and consist of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Alarm monitoring contracts	$	58,044		$	94,179
	Internally developed software	4,347			4,347
	Nonsolicitation agreements	10			1,340
	Other	5			5
		62,406			99,871
	Less accumulated amortization for:
	Alarm monitoring contracts	(35,662		)	(64,310		)
	Internally developed software	(2,400		)	(1,531		)
	Nonsolicitation agreements	(9		)	(1,180		)
	Other	(3		)	(2		)
		(38,074		)	(67,023		)
		$	24,332		$	32,848
	Amortization of intangible assets was $8.5 million, $10.8 million and $10.0 million for the years ended December 31, 2014, 2013 and 2012, respectively. Amortization of intangible assets for the following five years, as of December 31, 2014, is as follows (in thousands):
	2015	$	5,476
	2016	4,149
	2017	2,855
	2018	1,995
	2019	1,907

Accrued_Expenses

Accrued Expenses	12 Months Ended
	Dec. 31, 2014
Payables and Accruals [Abstract]
Accrued Expenses	Accrued Expenses
	Accrued expenses consist of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014		December 31, 2013
	Payroll and benefit related accruals	$	3,885	$	2,629
	Interest	9,896		10,015
	Other	3,120		2,555
		$	16,901	$	15,199

LongTerm_Debt

Long-Term Debt	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt
	Long-term debt consists of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Notes	$	230,000		$	230,000
	Revolving line of credit	32,000			26,500
		$	262,000		$	256,500
	In January 2013, the Company closed the offering of Notes for $230.0 million, the proceeds of which were used to repay the 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 1/4% 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 current and future domestic subsidiaries and are secured by substantially all of the Company’s and any 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, which is 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 $9.4 million at December 31, 2014. 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 December 31, 2014 and December 31, 2013, the Company had $0.1 million and $0.1 million in letters of credit outstanding, respectively.
	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 December 31, 2014 and December 31, 2013). 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 December 31, 2014, 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 the 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 from Capital One 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 with Capital One increasing the facility from $45.0 million to $50.0 million.
	Based upon outstanding indebtedness as of December 31, 2014, aggregate annual maturities on the total borrowings under all debt agreements as of December 31, 2014 are as follows (in thousands):
	Year		Amount
	2015		$	—
	2016		—
	2017		—
	2018		262,000
	2019		—
			$	262,000
	At December 31, 2014, the Notes traded at a range of 100.00 to 102.00 based upon available market information. The range of the estimated fair value of the Notes was $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. See Note 10.
	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 December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Deferred financing fees	$	10,921		$	10,921
	Accumulated amortization	(4,267		)	(2,083		)
		$	6,654		$	8,838
	Amortization of deferred financing fees was $2.2 million, $2.2 million and $2.6 million for the years ended December 31, 2014, 2013 and 2012, respectively, which is included in interest expense in the accompanying consolidated statement of operations.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2014
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. 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	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes
	The Company files income tax returns in the United States federal jurisdiction and various state jurisdictions. The Company’s federal income tax returns from 2011 through 2013 remain subject to examination. In addition, certain carryforward attributes that were generated prior to 2011 may still be adjusted upon examination by the Internal Revenue Service to the extent utilized in a period open to examination. Various state jurisdiction tax years remain open to examination as well, though the Company believes any additional assessment will be immaterial to the consolidated financial statements.
	The Company recognized income tax expense of $1.0 million, $0.7 million and $0.5 million for the years ended December 31, 2014, 2013 and 2012, respectively, resulting in an effective tax rate of (4.26)%, (1.53)% and (1.74)% for the years ended December 31, 2014, 2013 and 2012, respectively. In each year, 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 its 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.
	The components of the Company’s provision for income taxes for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):
		December 31,
		2014				2013				2012
	Current tax expense
	Federal	$	—			$	—			$	—
	State	496				154				88
	Total current	496				154				88
	Deferred tax expense
	Federal	485				516				485
	State	57				52				(52		)
	Total deferred	542				568				433
	Total provision for income taxes	$	1,038			$	722			$	521
	The Company’s provision for income taxes differs from the expected tax expense amount computed by applying the statutory federal income tax rate of 35% to loss before income taxes as a result of the following:
		2014			2013			2012
	Tax at U.S. statutory rate	35	%		35	%		35	%
	State taxes, net of benefit	(2.27	)%		3.11	%		3.6	%
	Permanent differences	(10.14	)%		—	%		—	%
	Valuation allowance	(27.56	)%		(39.34	)%		(40.17	)%
	Other, net	0.71	%		(0.30	)%		(0.17	)%
	Effective tax rate	(4.26	)%		(1.53	)%		(1.74	)%
	At December 31, 2014 and December 31, 2013, the deferred tax assets attributable to federal net operating loss carryforwards was $102.7 million and $93.5 million, respectively. Such carryforwards, which may provide future tax benefits, expire in various years through 2034. Additionally, the equity offerings made throughout the Company's history have resulted in a change of ownership for tax purposes causing restrictions on the use of these tax losses pursuant to Section 382 of the Internal Revenue Code; however, the Company has not analyzed whether any possible limitations exist at this time. The deferred tax asset associated with these net operating loss carryforwards has been fully reserved for at December 31, 2014 and December 31, 2013. The Company evaluated all significant available positive and negative evidence, including the existence of losses in recent years and our forecast of future taxable income, and, as a result, determined it was more likely than not that its federal and certain state deferred tax assets, including benefits related to net operating loss carry forwards, would not be realized based on the measurement standards required under the provisions of ASC 740. As such, the value of the deferred tax assets was fully offset by a valuation allowance, due to the current uncertainty of the future realization of the deferred tax assets.
	The Company also applies the accounting guidance in ASC 740 related to accounting for uncertainty in income taxes. ASC 740 specifies the accounting the accounting for uncertainty in income taxes recognized in a company’s financial statements by prescribing a minimum probability threshold a tax position is required to meet before being recognized in the financial statements. Management has evaluated all significant tax positions at December 31, 2014 and 2013 and concluded that there are no significant uncertain tax positions as defined by accounting standards and therefore there was no effect on the Company’s financial position or results of operations as a result of implementing the standard. If they were to arise, interest and penalties associated with unrecognized tax positions will be classified as additional income taxes in the statement of income.
	Significant components of the Company’s deferred tax liabilities and assets are as follows as of December 31 (in thousands):
		2014				2013
	Net operating loss carry forward	$	102,662			$	93,479
	Amortizable assets	2,197				2,864
	Miscellaneous accruals	894				203
	Bad debt reserve	432				366
	Inventory reserve	217				228
	Gross deferred tax asset	106,402				97,140
	Depreciable assets	(2,459		)		(813		)
	Amortizable assets - acquisition costs	(1,330		)		(1,228		)
	Goodwill	(6,758		)		(6,229		)
	Gross deferred tax liabilities	(10,547		)		(8,270		)
	Net deferred tax asset	95,855				88,870
	Less: valuation allowances	(103,943		)		(96,364		)
	Net deferred tax liability	$	(8,088	)		$	(7,494	)

Mezzanine_Equity

Mezzanine Equity	12 Months Ended
	Dec. 31, 2014
Temporary Equity Disclosure [Abstract]
Mezzanine Equity	Mezzanine Equity
	Mezzanine equity in the consolidated balance sheets as of December 31, 2014 and December 31, 2013 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.
	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). 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 the Company’s 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 its stockholders, as permitted under the indenture governing the Notes. A summary of the change in mezzanine equity for the years ended December 31, 2014, 2013 and 2012 is as follows (in thousands):
		Class A Preferred			Class C Preferred			Class E Preferred					Class F Preferred					Class G Preferred
		Number of Shares	$1.00 par		Number of Shares	$1.00 par		Number of Shares		$1.00 par			Number of Shares		$1.00 par			Number of Shares		$1.00 par
			value			value				value					value					value
	Balances at December 31, 2011	39	$	85,877	16	$	32,439	11		$	20,579		2		$	3,875		2		$	7,094
	Dividends accrued on preferred stock	—	9,432		—	3,368		—		2,136			—		524			—		737
	Balances at December 31, 2012	39	95,309		16	35,807		11		22,715			2		4,399			2		7,831
	Dividends accrued on preferred stock	—	10,411		—	3,717		—		2,358			—		596			—		813
	Balances at December 31, 2013	39	105,720		16	39,524		11		25,073			2		4,995			2		8,644
	Dividends accrued on preferred stock	—	4,564		—	1,630		—		502			—		14			—		19
	Dividends paid	—	—		—	—		—		(12,961		)	—		(2,309		)	—		(2,642		)
	Redemption of preferred stock	—	—		—	—		(1	)	(653		)	(2	)	(2,700		)	(2	)	(6,021		)
	Balances at December 31, 2014	39	$	110,284	16	$	41,154	10		$	11,961		—		$	—		—		$	—
	Stockholders’ Equity
	The Company’s 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 the Company with an aggregate of $250,000 in recourse promissory notes payable to the Company, with the shares pledged as collateral. The outstanding balance of the promissory notes of $0.1 million December 31, 2013 is reflected as a reduction in stockholders’ equity (deficit) in the accompanying consolidated balance sheets. Subsequent to the date of inception, additional shares of the Company’s stock were purchased with cash or issuance of additional promissory notes by certain members of management. In April 2014, all of the promissory notes issued by management were paid in full and terminated.

Stockholders_Equity

Stockholders' Equity	12 Months Ended
	Dec. 31, 2014
Equity [Abstract]
Stockholders' Equity	Mezzanine Equity
	Mezzanine equity in the consolidated balance sheets as of December 31, 2014 and December 31, 2013 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.
	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). 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 the Company’s 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 its stockholders, as permitted under the indenture governing the Notes. A summary of the change in mezzanine equity for the years ended December 31, 2014, 2013 and 2012 is as follows (in thousands):
		Class A Preferred			Class C Preferred			Class E Preferred					Class F Preferred					Class G Preferred
		Number of Shares	$1.00 par		Number of Shares	$1.00 par		Number of Shares		$1.00 par			Number of Shares		$1.00 par			Number of Shares		$1.00 par
			value			value				value					value					value
	Balances at December 31, 2011	39	$	85,877	16	$	32,439	11		$	20,579		2		$	3,875		2		$	7,094
	Dividends accrued on preferred stock	—	9,432		—	3,368		—		2,136			—		524			—		737
	Balances at December 31, 2012	39	95,309		16	35,807		11		22,715			2		4,399			2		7,831
	Dividends accrued on preferred stock	—	10,411		—	3,717		—		2,358			—		596			—		813
	Balances at December 31, 2013	39	105,720		16	39,524		11		25,073			2		4,995			2		8,644
	Dividends accrued on preferred stock	—	4,564		—	1,630		—		502			—		14			—		19
	Dividends paid	—	—		—	—		—		(12,961		)	—		(2,309		)	—		(2,642		)
	Redemption of preferred stock	—	—		—	—		(1	)	(653		)	(2	)	(2,700		)	(2	)	(6,021		)
	Balances at December 31, 2014	39	$	110,284	16	$	41,154	10		$	11,961		—		$	—		—		$	—
	Stockholders’ Equity
	The Company’s 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 the Company with an aggregate of $250,000 in recourse promissory notes payable to the Company, with the shares pledged as collateral. The outstanding balance of the promissory notes of $0.1 million December 31, 2013 is reflected as a reduction in stockholders’ equity (deficit) in the accompanying consolidated balance sheets. Subsequent to the date of inception, additional shares of the Company’s stock were purchased with cash or issuance of additional promissory notes by certain members of management. In April 2014, all of the promissory notes issued by management were paid in full and terminated.

Benefit_Plan

Benefit Plan	12 Months Ended
	Dec. 31, 2014
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 years ended December 31, 2014, 2013 and 2012, the Company made a contribution of $0.1 million, $0.2 million and $0.1 million, respectively, to the Plan.

Lease_Commitments_and_Other_Ob

Lease Commitments and Other Obligations	12 Months Ended
	Dec. 31, 2014
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 December 31, 2014, the future minimum rental payments required under such leases are as follows (in thousands):
	2015	$	3,277
	2016	2,361
	2017	1,585
	2018	1,103
	2019 and thereafter	1,581
		$	9,907
	Rental expense for the years ended December 31, 2014, 2013 and 2012 was $6.1 million, $4.8 million and $3.8 million, respectively.
	In addition to the operating leases above, the Company has equipment leases that are accounted for as capital leases. At December 31, 2014, the future minimum lease payments under such leases are as follows (in thousands):
	2015	$	279
	2016	240
	2017 and thereafter	9
		528
	Less: current portion	(279		)
		$	249
	Capital leases for equipment had a book value of $2.2 million and $2.5 million and accumulated depreciation of $1.5 million and $2.1 million at December 31, 2014 and December 31, 2013, respectively.
	The Company has entered into financing arrangements for the purchase of inventory and managed support services. 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 $3.9 million and $0.2 million at December 31, 2014 and December 31, 2013, respectively. The current portion of these borrowings was $1.8 million and $0.2 million at December 31, 2014 and December 31, 2013, respectively. The financing agreement is non-interest bearing and payable over 24 months. The imputed interest on the financing arrangements was not significant based on the lender's borrowing rate.

Concentrations_of_Credit_Risk_

Concentrations of Credit Risk and Significant Customers	12 Months Ended
	Dec. 31, 2014
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 18.5% and 6.6%, respectively, of total revenues for the year ended December 31, 2014. The associated accounts receivable from these two customers as a percentage of the Company’s accounts receivable, net, were 17.5% and 2.2%, respectively, as of December 31, 2014. For the year ended December 31, 2013, the Company’s two largest customers accounted for 17.2% and 4.6%, respectively, of total revenues and represented 20.5% and 0.6%, respectively, of the Company’s total accounts receivable, net, as of December 31, 2013.
	Purchases from a specific vendor that provides subcontract labor in the security alarm and managed services industry totaled $14.0 million and $6.0 million for the year ended December 31, 2014 and 2013, respectively. At December 31, 2014 and December 31, 2013, the Company had an accounts payable balance of $2.8 million and $1.0 million, respectively, due to the vendor. Purchases from this vendor represented 12.3% and 6.2% of the Company’s total purchases for the years ended December 31, 2014 and 2013, respectively. Additionally, purchases of equipment from another vendor totaled $11.0 million and $10.3 million for the years ended December 31, 2014 and 2013, respectively. At December 31, 2014 and December 31, 2013, the Company had an accounts payable balance of $3.0 million and $2.4 million, respectively, due to the vendor. Purchases from this vendor represented 9.6% and 10.7% of the Company’s total purchases for the years ended December 31, 2014 and 2013, respectively.

Noncontrolling_Interest

Noncontrolling Interest	12 Months Ended
	Dec. 31, 2014
Noncontrolling Interest [Abstract]
Noncontrolling Interest	Noncontrolling Interest
	In November 2004, Holdings acquired 80% of the voting common stock of GAC. As of December 31, 2012, and as a result of subsequent stock purchases and additional capital contributions since 2004, Holdings owned approximately 99% of the voting common stock of GAC. In the third quarter of 2013, Holdings acquired all of the remaining noncontrolling interest in GAC for $0.1 million. The noncontrolling interest’s share of GAC’s net loss was $0.03 million and $0.04 million for the years ended December 31, 2013 and 2012, respectively, in the consolidated statement of operations.

Related_Party

Related Party	12 Months Ended
	Dec. 31, 2014
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 December 31, 2014 and therefore, no fees were paid to SunTx Management during the period from June 2014 to December 2014. Fees paid to SunTx Management were $0.2 million, $0.5 million and $0.5 million for the years ended December 31, 2014, 2013 and 2012, respectively.
	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.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2014
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	12 Months Ended
	Dec. 31, 2014
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Standards	Recently Issued Accounting Standards
	In May 2014, the FASB issued Accounting Standards Update (“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, 2016, and early adoption is not permitted. The Company is currently evaluating the impact of adoption of ASU 2014-09 on its 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, ASU 2014-15 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.

Unaudited_Quarterly_Financial_

Unaudited Quarterly Financial Data	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Unaudited Quarterly Financial Data	Unaudited Quarterly Financial Data
	The following table presents quarterly data for the fiscal years 2014 and 2013 (in thousands):
		Year Ended December 31, 2014
		First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	Revenue	$	28,720		$	27,427		$	32,424		$	34,276
	Income (loss) from operations	31,508			(5,652		)	(8,180		)	(10,780		)
	Net income (loss) (a)	27,690			(12,901		)	(15,487		)	(17,965		)
	(a) Net income for the first quarter of 2014 includes the $39.7 million gain on the sale of the Transferred Assets.
		Year Ended December 31, 2013
		First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	Revenue	$	30,245		$	31,745		$	32,554		$	32,198
	Loss from operations	(4,519		)	(6,004		)	(6,094		)	(6,541		)
	Net loss	(10,565		)	(12,095		)	(12,318		)	(12,842		)

Subsequent_Events

Subsequent Events	12 Months Ended
	Dec. 31, 2014
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events
	On January 20, 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 three years 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.
	On March 19, 2015, the Company entered into a financing arrangement for the purchase of inventory and managed support services in the amount of $0.9 million. The financing arrangement is non-interest bearing and payable over 24 months.
	On March 30, 2015, the Company received a waiver from Capital One of any default under our 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 with Capital One increasing the facility from $45.0 million to $50.0 million.

Condensed_Consolidating_Financ

Condensed Consolidating Financial Information	12 Months Ended
	Dec. 31, 2014
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 9. Pursuant to the indenture governing the Notes, such notes are fully and unconditionally and jointly and severally guaranteed by each of the Company’s current and future domestic 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.

Schedule_IIValuation_and_Quali

Schedule II-Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2014
Valuation and Qualifying Accounts [Abstract]
Schedule II-Valuation and Qualifying Accounts	INTERFACE SECURITY SYSTEMS HOLDINGS, INC.
	SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS
	($ in thousands)
	Description	Balance at Beginning of Year		Additions to Deferred Taxes		Balance at End of Year
	Valuation allowance on deferred tax liability:
	Year Ended December 31, 2012	$	54,505	$	27,656	$	82,161
	Year Ended December 31, 2013	82,161		14,203		96,364
	Year Ended December 31, 2014	96,364		7,579		103,943

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
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 United States and a majority of the Company’s long-lived assets are located 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 costs to create new customers internally and this investment is not generally capitalized. The Company generates substantial operating losses as a result of expensing the majority of its investment in subscriber RMR growth.
	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 and debt holders resulting from the steady growth in the Company’s RMR at historical investment levels. Management believes that there is significant value created for the Company’s stockholders resulting from the steady growth in its 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. Management also believes this enhances the Company’s ability to service debt obligations. As of December 31, 2014, the Company is actively billing approximately $8.4 million of RMR and has a Contracted Backlog of RMR contracts totaling $2.0 million of which a majority is expected to be installed in the first six months of 2015. The related equipment and materials have been procured for the Contracted Backlog.
	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 note, subordinated notes payable and the fees and expenses associated with the offering. In addition, the Company had $32.0 million drawn and $9.4 million available for borrowing under the Revolving Credit Facility (as defined below) at December 31, 2014. See Note 9.
	The Company used $44.9 million, $19.4 million, and $6.3 million of cash for operations for the years ended December 31, 2014, 2013 and 2012, respectively, and had positive working capital of $20.0 million as of December 31, 2014 and negative working capital of $13.2 million (excluding assets and liabilities held for sale) as of December 31, 2013. In addition, as of December 31, 2014, the Company had $266.4 million of total indebtedness.
Principles of Consolidation	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its majority owned subsidiaries, which are all 100% owned as of December 31, 2014 and December 31, 2013. All significant transactions and account balances between entities included in the consolidated financial statements have been eliminated in consolidation.
Use of Estimates	Use of Estimates
	The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, revenues and expenses and the disclosure of contingencies. Estimates are based on several factors including the facts and circumstances available at the time the estimates are made. Actual results could differ from those estimates. Some of the more significant estimates include the useful lives for and recoverability of tangible and intangible assets, purchase price allocations of acquired businesses and income taxes.
Revenue Recognition	Revenue Recognition
	The Company’s policy is to recognize revenue when it is realized or realizable and it is earned. The Company considers revenue realized or realizable and earned when risk of loss transfers, persuasive evidence of an arrangement exists, the price to the buyer is fixed and determinable, and collectability is reasonably assured. Service revenues for monitoring, maintenance or other service contracts are recognized ratably as services are rendered over the term of each customer agreement. Customer billings for services not yet rendered are deferred and recognized as revenue when the services are rendered and are included in deferred revenue in the consolidated balance sheets.
	Transactions for which the Company retains ownership of the alarm, secured managed broadband (“SMB”), VoIP or other system, revenues associated with the equipment and their related subscription monitoring or maintenance contracts, any set up fee and initial direct costs are deferred and are amortized on a straight-line basis over the longer of the estimated customer life or the initial term of the related contract. The related installation costs (labor, equipment, subcontractor labor, etc.) are capitalized into subscriber system assets and are amortized on a straight-line basis over the initial term of the customer contract.
	Arrangements involving the sale of alarm, SMB, VoIP or other systems, as well as other services to the customer can be considered to have multiple elements, including the sale of equipment, installation, monitoring and/or maintenance services. We assess our revenue arrangements to determine the appropriate units of accounting. Once the units of accounting are properly determined, we evaluate the hierarchy of Vendor Specific Objective Evidence (“VSOE”), Third Party Evidence (“TPE”) and Best Estimate of Selling Price (“BESP”) to determine the appropriate selling price for each unit of accounting. VSOE of selling price is based on the price charged when the element is sold separately. TPE of selling price is established by evaluating largely interchangeable competitor products or services in stand-alone sales to similarly situated customers. BESP is established considering multiple factors, including, but not limited to, pricing practices in different geographies, gross margin objectives and internal costs. Some of the Company's offerings contain a significant element of proprietary technology and provide substantially unique features and functionality. As a result, the comparable pricing of products with similar functionality typically cannot be obtained. Additionally, the Company is unable to reliably determine what competitors products’ selling prices are on a stand-alone basis and typically not able to determine TPE for such products. Therefore BESP is used for such products in the selling price hierarchy for allocating the total arrangement consideration. BESP reflects the Company's best estimate of what the selling prices of each deliverable would be if it were sold regularly on a standalone basis taking into consideration the cost structure of its business, technical skill required, customer location and other market conditions.
	Once the selling prices for all units of accounting are identified, the arrangement consideration is allocated to those separate units based on their relative selling prices. In those types of arrangements, the revenues associated with the equipment and installation services are limited to amounts that are not contingent upon the delivery of the monitoring and/or maintenance services.
	For transactions in which we install alarm, SMB, VoIP or other systems without any contracted future services, revenue is recognized upon completion of the installation.
	Provisions for certain rebates, refunds and discounts to customers are accounted for as reductions in revenue in the same period the related revenue is recorded based on sales terms and historical experience. Refunds occur in limited circumstances and only after all attempts to resolve customer concerns have been exhausted. Amounts that the Company has refunded during fiscal years 2014, 2013 and 2012 were not material.
Cash and Cash Equivalents	Cash and Cash Equivalents
	All amounts reported as cash and cash equivalents on the Company’s consolidated balance sheets represent cash or deposits and investments, which are available on demand to the Company with original maturities at the time of purchase of three months or less. Additionally, we had $2.0 million of restricted cash as of December 31, 2013 related to amounts placed in escrow pursuant to the sale of the Transferred Assets (as defined below). See Note 4.
Accounts Receivable	Accounts Receivable
	Accounts receivable represents amounts due from customers on sales, installations, monitoring and maintenance contracts that have been adjusted for estimated uncollectible amounts. The Company grants credit to customers and does not require collateral for its accounts receivable. As security, the customer signs a binding agreement before any services are performed and payment for services is billed in advance. The allowance for doubtful accounts receivable reflects the best estimate of probable losses inherent in the Company’s receivable portfolio determined on the basis of historical experience and other currently available evidence. Accounts are considered for write-off when they become past due and when it is determined that the probability of collection is remote.
Inventories	Inventories
	Inventories are stated at the lower of cost, determined under the first-in, first-out (FIFO) method, or market. Inventories include the cost of materials, direct labor and work in progress. Obsolete or excess inventories are reflected at their estimated realizable values.
Property and Equipment	Property and Equipment
	Property and equipment acquired through acquisition, is recorded at estimated fair market value under the purchase method of accounting as of the acquisition date. Additions to property and equipment subsequent to the acquisition date are recorded at cost. The Company capitalizes direct labor and related overhead costs associated with Company-owned monitoring systems installed on subscriber premises. In addition to equipment, direct labor and related overhead costs capitalized for the years ended December 31, 2014, 2013 and 2012 was $17.1 million, $15.6 million and $7.9 million, respectively. Management evaluates long-lived assets, including property and equipment, for impairment when events or changes in circumstances indicate that the carrying value of such assets may not be recoverable. Whether impairment has occurred is determined by comparing the estimated undiscounted cash flows attributable to the assets with the carrying value of the assets. If the carrying value exceeds the undiscounted cash flows, management recognizes the amount of the impairment by estimating the fair value of the assets and recording a provision for loss. The Company has determined there are no events or changes in circumstances that indicate that the carrying value may not be recoverable as of December 31, 2014 and 2013.
	Certain leased property is capitalized in accordance with authoritative accounting guidance and the present value of the related minimum lease payments is recorded as a liability, using interest rates appropriate at the inception of each lease. Amortization of capital leased assets is computed on the straight-line method over the life of the asset.
	Expenditures for maintenance, repairs and minor renewals are expensed as incurred; expenditures for betterments and major renewals, which substantially increase the useful life of the asset, are capitalized. When assets are retired or otherwise disposed of, their cost and related accumulated depreciation are removed from the accounts and any resulting gain or loss is included in operating results.
	The Company provides for depreciation using the straight-line method based upon estimated useful lives of the assets as follows:
		Years
	Subscriber system assets	3 to 7
	Leasehold improvements	5 to 10
	Software	3 to 5
	Furniture, fixtures and equipment	5 to 7
	Vehicles	3 to 5
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	Goodwill results from the excess purchase price of an acquisition over the fair value of the net assets acquired and is not amortized. It is tested for impairment annually, or more frequently as warranted by events or changes in circumstances. In testing goodwill for impairment, the Company has the option to first assess qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the estimated fair value of the reporting unit is less than its carrying amount. If the Company elects to perform a qualitative assessment and determines that an impairment is more likely than not, a two-step, quantitative impairment test is then required, otherwise no further analysis is required. The Company also may elect not to perform the qualitative assessment and, instead, proceed directly to the quantitative impairment test.
	The Company elected to perform a quantitative assessment for its goodwill impairment testing and concluded that goodwill is not impaired. Under the quantitative impairment test, the Company compares the fair value of its reporting unit with its carrying amount. The estimated fair value of the reporting unit used in the goodwill impairment test is determined utilizing market indicators of the Company's RMR multiple. Based on quantitative evaluations performed by the Company, management believes no impairment exists in the carrying value of its goodwill or other indefinite-lived intangible assets at December 31, 2014 and 2013.
	The Company’s alarm monitoring contracts, which were acquired through acquisitions are amortized on a straight-line basis over periods ranging from 10 to 12 years.
	Nonsolicitation agreements, which arose in connection with acquisitions are amortized over the lives of the agreements, which range from 2 to 10 years.
Deferred Charges	Deferred Charges
	Deferred charges consist of costs related to borrowings and are deferred and amortized to interest expense over the terms of the related borrowing. Deferred charges in the accompanying consolidated balance sheets are shown at cost, net of accumulated amortization.
Customer Deposits	Customer Deposits
	Customer deposits represent cash advances received from customers for installing alarm monitoring systems and customer payments for RMR services prior to being invoiced.
Deferred Revenue	Deferred Revenue
	Deferred revenue represents advance billings for customer monitoring, maintenance and managed services under contract terms. Revenue is recognized ratably over the period of service associated with the payment. For transactions in which we retain ownership of the system, any amounts collectible upfront are deferred and amortized over the longer of the estimated customer life or the initial term of the contract.
Fair Value of Financial Instruments	Fair Values of Financial Instruments
	The carrying amounts of cash, accounts receivable, accounts payable and accrued expenses approximates fair value due to the short-term maturities of these assets and liabilities. See Note 9 for the estimated fair value of the Notes.
Income Taxes	Income Taxes
	The Company accounts for income taxes under the provisions of Financial Accounting Standards Board (“FASB”) ASC 740, Income Taxes (“ASC 740”), which requires the use of the asset and liability method of accounting for income taxes. The current and deferred tax consequences of a transaction are measured by applying the provisions of enacted tax laws to determine the amount of taxes payable currently or in future years. Deferred income taxes are provided for temporary differences between income tax bases of assets and liabilities and their carrying amounts for financial reporting purposes. A valuation allowance reduces deferred tax assets when management determines it is “more likely than not” that some portion or all of the deferred tax assets will not be realized.
	ASC 740 also clarifies the accounting for uncertainty in income taxes recognized in an enterprise’s financial statements and prescribes a recognition threshold and measurement attribute for the financial statement recognition and measurement of a tax position taken or expected to be taken in a tax return. ASC 740 provides guidance on derecognition, classification, interest and penalties, accounting for interim periods, disclosure and transition.
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.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2014
Accounting Policies [Abstract]
Schedule of Property and Equipment	The Company provides for depreciation using the straight-line method based upon estimated useful lives of the assets as follows:
			Years
	Subscriber system assets		3 to 7
	Leasehold improvements		5 to 10
	Software		3 to 5
	Furniture, fixtures and equipment		5 to 7
	Vehicles		3 to 5
	Property and equipment consists of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Subscriber system assets	$	36,880		$	31,664
	Equipment	2,809			4,044
	Vehicles	1,125			1,759
	Software	2,817			3,938
	Furniture and fixtures	543			757
	Leasehold improvements	933			1,177
		45,107			43,339
	Less: Accumulated depreciation	(17,389		)	(22,833		)
		$	27,718		$	20,506

Acquisition_Tables

Acquisition (Tables)	12 Months Ended
	Dec. 31, 2014
Business Combinations [Abstract]
Schedule of Allocation of Purchase Price	The purchase price allocation recorded in connection with the acquisition is as follows (in thousands):
	Cash and cash equivalents	$	1,087
	Accounts receivable	2,881
	Inventories	740
	Prepaid expenses, other assets	73
	Property and equipment	5,098
	Alarm monitoring contracts	22,500
	Internally developed software	4,347
	Goodwill	16,905
	Nonsolicitation agreements	1,320
	Accounts payable	(1,321		)
	Accrued expenses	(4,306		)
	Total consideration	$	49,324
Schedule of Pro Forma Financial Information	The unaudited pro forma financial information below is based on available information and assumptions that the Company believes are reasonable. The unaudited pro forma financial information is for illustrative and informational purposes only and is not intended to represent or be indicative of what the Company’s financial condition or results of operations would have been had the transactions described above occurred on the date indicated. The unaudited pro forma financial information also should not be considered representative of the Company’s future financial condition or results of operations.
		Year Ended December 31,
		2012
	Revenues	$	117,335
	Net Loss	$	(30,545	)

Inventories_Tables

Inventories (Tables)	12 Months Ended
	Dec. 31, 2014
Inventory Disclosure [Abstract]
Schedule of Inventories	Inventories consist of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014		December 31, 2013
	Products	$	10,279	$	2,858
	Work-in-process	11,376		4,023
		$	21,655	$	6,881

Property_and_Equipment_Tables

Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2014
Property, Plant and Equipment [Abstract]
Schedule of Property and Equipment	The Company provides for depreciation using the straight-line method based upon estimated useful lives of the assets as follows:
			Years
	Subscriber system assets		3 to 7
	Leasehold improvements		5 to 10
	Software		3 to 5
	Furniture, fixtures and equipment		5 to 7
	Vehicles		3 to 5
	Property and equipment consists of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Subscriber system assets	$	36,880		$	31,664
	Equipment	2,809			4,044
	Vehicles	1,125			1,759
	Software	2,817			3,938
	Furniture and fixtures	543			757
	Leasehold improvements	933			1,177
		45,107			43,339
	Less: Accumulated depreciation	(17,389		)	(22,833		)
		$	27,718		$	20,506

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	Activity for goodwill is set forth as below (in thousands):
	Balance at December 31, 2012	$	40,463
	Additions for current year additions	—
	Accumulated impairment losses	—
	Balance at December 31, 2013	$	40,463
	Additions for current period	—
	Accumulated impairment losses	—
	Balance at December 31, 2014	$	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 December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Alarm monitoring contracts	$	58,044		$	94,179
	Internally developed software	4,347			4,347
	Nonsolicitation agreements	10			1,340
	Other	5			5
		62,406			99,871
	Less accumulated amortization for:
	Alarm monitoring contracts	(35,662		)	(64,310		)
	Internally developed software	(2,400		)	(1,531		)
	Nonsolicitation agreements	(9		)	(1,180		)
	Other	(3		)	(2		)
		(38,074		)	(67,023		)
		$	24,332		$	32,848
Schedule of Future Amortization of Intangible Assets	Amortization of intangible assets for the following five years, as of December 31, 2014, is as follows (in thousands):
	2015	$	5,476
	2016	4,149
	2017	2,855
	2018	1,995
	2019	1,907

Accrued_Expenses_Tables

Accrued Expenses (Tables)	12 Months Ended
	Dec. 31, 2014
Payables and Accruals [Abstract]
Schedule of Accrued Expenses	Accrued expenses consist of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014		December 31, 2013
	Payroll and benefit related accruals	$	3,885	$	2,629
	Interest	9,896		10,015
	Other	3,120		2,555
		$	16,901	$	15,199

LongTerm_Debt_Tables

Long-Term Debt (Tables)	12 Months Ended
	Dec. 31, 2014
Debt Disclosure [Abstract]
Schedule of Long-Term Debt	Long-term debt consists of the following at December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Notes	$	230,000		$	230,000
	Revolving line of credit	32,000			26,500
		$	262,000		$	256,500
Schedule of Debt Maturities	Based upon outstanding indebtedness as of December 31, 2014, aggregate annual maturities on the total borrowings under all debt agreements as of December 31, 2014 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 December 31, 2014 and December 31, 2013 (in thousands):
		December 31, 2014			December 31, 2013
	Deferred financing fees	$	10,921		$	10,921
	Accumulated amortization	(4,267		)	(2,083		)
		$	6,654		$	8,838

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	The components of the Company’s provision for income taxes for the years ended December 31, 2014, 2013 and 2012 were as follows (in thousands):
		December 31,
		2014				2013				2012
	Current tax expense
	Federal	$	—			$	—			$	—
	State	496				154				88
	Total current	496				154				88
	Deferred tax expense
	Federal	485				516				485
	State	57				52				(52		)
	Total deferred	542				568				433
	Total provision for income taxes	$	1,038			$	722			$	521
Schedule of Effective Income Tax Rate Reconciliation	The Company’s provision for income taxes differs from the expected tax expense amount computed by applying the statutory federal income tax rate of 35% to loss before income taxes as a result of the following:
		2014			2013			2012
	Tax at U.S. statutory rate	35	%		35	%		35	%
	State taxes, net of benefit	(2.27	)%		3.11	%		3.6	%
	Permanent differences	(10.14	)%		—	%		—	%
	Valuation allowance	(27.56	)%		(39.34	)%		(40.17	)%
	Other, net	0.71	%		(0.30	)%		(0.17	)%
	Effective tax rate	(4.26	)%		(1.53	)%		(1.74	)%
Schedule of Deferred Tax Assets and Liabilities	Significant components of the Company’s deferred tax liabilities and assets are as follows as of December 31 (in thousands):
		2014				2013
	Net operating loss carry forward	$	102,662			$	93,479
	Amortizable assets	2,197				2,864
	Miscellaneous accruals	894				203
	Bad debt reserve	432				366
	Inventory reserve	217				228
	Gross deferred tax asset	106,402				97,140
	Depreciable assets	(2,459		)		(813		)
	Amortizable assets - acquisition costs	(1,330		)		(1,228		)
	Goodwill	(6,758		)		(6,229		)
	Gross deferred tax liabilities	(10,547		)		(8,270		)
	Net deferred tax asset	95,855				88,870
	Less: valuation allowances	(103,943		)		(96,364		)
	Net deferred tax liability	$	(8,088	)		$	(7,494	)

Mezzanine_Equity_Tables

Mezzanine Equity (Tables)	12 Months Ended
	Dec. 31, 2014
Temporary Equity Disclosure [Abstract]
Schedule of Change in Mezzanine Equity	A summary of the change in mezzanine equity for the years ended December 31, 2014, 2013 and 2012 is as follows (in thousands):
		Class A Preferred			Class C Preferred			Class E Preferred					Class F Preferred					Class G Preferred
		Number of Shares	$1.00 par		Number of Shares	$1.00 par		Number of Shares		$1.00 par			Number of Shares		$1.00 par			Number of Shares		$1.00 par
			value			value				value					value					value
	Balances at December 31, 2011	39	$	85,877	16	$	32,439	11		$	20,579		2		$	3,875		2		$	7,094
	Dividends accrued on preferred stock	—	9,432		—	3,368		—		2,136			—		524			—		737
	Balances at December 31, 2012	39	95,309		16	35,807		11		22,715			2		4,399			2		7,831
	Dividends accrued on preferred stock	—	10,411		—	3,717		—		2,358			—		596			—		813
	Balances at December 31, 2013	39	105,720		16	39,524		11		25,073			2		4,995			2		8,644
	Dividends accrued on preferred stock	—	4,564		—	1,630		—		502			—		14			—		19
	Dividends paid	—	—		—	—		—		(12,961		)	—		(2,309		)	—		(2,642		)
	Redemption of preferred stock	—	—		—	—		(1	)	(653		)	(2	)	(2,700		)	(2	)	(6,021		)
	Balances at December 31, 2014	39	$	110,284	16	$	41,154	10		$	11,961		—		$	—		—		$	—

Lease_Commitments_and_Other_Ob1

Lease Commitments and Other Obligations (Tables)	12 Months Ended
	Dec. 31, 2014
Leases [Abstract]
Schedule of Future Minimum Rental Payments Under Operating Leases	At December 31, 2014, the future minimum rental payments required under such leases are as follows (in thousands):
	2015	$	3,277
	2016	2,361
	2017	1,585
	2018	1,103
	2019 and thereafter	1,581
		$	9,907
Schedule of Future Minimum Lease Payments Under Capital Leases	At December 31, 2014, the future minimum lease payments under such leases are as follows (in thousands):
	2015	$	279
	2016	240
	2017 and thereafter	9
		528
	Less: current portion	(279		)
		$	249

Unaudited_Quarterly_Financial_1

Unaudited Quarterly Financial Data (Tables)	12 Months Ended
	Dec. 31, 2014
Quarterly Financial Information Disclosure [Abstract]
Schedule of Quarterly Financial Information	The following table presents quarterly data for the fiscal years 2014 and 2013 (in thousands):
		Year Ended December 31, 2014
		First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	Revenue	$	28,720		$	27,427		$	32,424		$	34,276
	Income (loss) from operations	31,508			(5,652		)	(8,180		)	(10,780		)
	Net income (loss) (a)	27,690			(12,901		)	(15,487		)	(17,965		)
	(a) Net income for the first quarter of 2014 includes the $39.7 million gain on the sale of the Transferred Assets.
		Year Ended December 31, 2013
		First Quarter			Second Quarter			Third Quarter			Fourth Quarter
	Revenue	$	30,245		$	31,745		$	32,554		$	32,198
	Loss from operations	(4,519		)	(6,004		)	(6,094		)	(6,541		)
	Net loss	(10,565		)	(12,095		)	(12,318		)	(12,842		)

Organization_and_Basis_of_Pres1

Organization and Basis of Presentation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2013	Aug. 15, 2014
	segment
Variable Interest Entity [Line Items]
Number of operating segments	1
Active billing of RMR	$8,400,000
Backlog of RMR contracts	2,000,000
Net cash used in operating activities	-44,853,000	-19,355,000	-6,260,000
Working capital	20,000,000	-13,200,000
Long-term debt, including current portion	266,406,000
Selling and marketing expense	21,100,000
Line of Credit [Member]
Variable Interest Entity [Line Items]
Amount drawn	32,000,000
Amount available for borrowing	9,400,000
Revolving Credit Facility [Member]
Variable Interest Entity [Line Items]
Maximum borrowing capacity				45,000,000
Senior secured notes [Member] | Revolving Credit Facility [Member]
Variable Interest Entity [Line Items]
Maximum borrowing capacity					5,000,000
Senior secured notes [Member] | Senior Secured Notes Due 2018 [Member]
Variable Interest Entity [Line Items]
Stated interest rate				9.25%
Face amount of debt issued				$230,000,000
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%

Summary_of_Significant_Account3

Summary of Significant Accounting Policies - Additional Information (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Accounting Policies [Abstract]
Percentage owned by Parent	100.00%	100.00%
Restricted cash	$0	$2,000
Allowance for doubtful accounts	$1,105	$955

Summary_of_Significant_Account4

Summary of Significant Accounting Policies - Property and Equipment (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Capitalized Costs, Equipment, Direct Labor and Related Overhead	17.1	$15.60	$7.90
Subscriber System Assets [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Subscriber System Assets [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Leaseholds and Leasehold Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Leaseholds and Leasehold Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	10 years
Software [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Software [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	7 years
Vehicles [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Vehicles [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years

Summary_of_Significant_Account5

Summary of Significant Accounting Policies - Goodwill and Intangible Assets (Details)	12 Months Ended
	Dec. 31, 2014
Customer Contracts [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Customer Contracts [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	12 years
Nonsolicitation agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	2 years
Nonsolicitation agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years

Acquisition_Purchase_Price_All

Acquisition - Purchase Price Allocation (Details) (USD $)	1 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Goodwill		$40,463	$40,463	$40,463
Westec [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Cash and cash equivalents	1,087
Accounts receivable	2,881
Inventories	740
Prepaid expenses, other assets	73
Property and equipment	5,098
Alarm monitoring contracts	22,500
Internally developed software	4,347
Goodwill	16,905
Nonsolicitation agreements	1,320
Accounts payable	-1,321
Accrued expenses	-4,306
Total consideration	49,324
Westec [Member] | Customer Contracts [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	12 years
Westec [Member] | Nonsolicitation agreements [Member]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]
Finite-Lived Intangible Asset, Weighted Average Period before Next Renewal or Extension	5 years

Acquisition_Pro_Forma_Details

Acquisition - Pro Forma (Details) (Westec [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012
Westec [Member]
Business Acquisition [Line Items]
Revenues	$117,335
Net Loss	($30,545)

Sale_of_Transferred_Assets_Det

Sale of Transferred Assets (Details) (USD $)	0 Months Ended
In Millions, unless otherwise specified	Jan. 09, 2014	Dec. 31, 2013	Dec. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments of dividends	$27.30
Hawk Security Services Asset Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total purchase price	42.8
Purchase price paid in cash	40.7
Time funds remained in escrow	6 months
Period of support for transition services	6 months
Settlement period	30 days
Accounts receivable		0.3
Inventory		0.3
Property, plant and equipment		3.6
Accrued liabilities		0.1
Customer deposits		0.5
Deferred revenue		0.8
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	$2.10

Inventories_Details

Inventories (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Inventory Disclosure [Abstract]
Products	$10,279	$2,858
Work-in-process	11,376	4,023
Inventory, net	$21,655	$6,881

Property_and_Equipment_Details

Property and Equipment (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$45,107	$43,339
Less: Accumulated depreciation	-17,389	-22,833
Property and equipment, net	27,718	20,506
Depreciation expense	9,879	10,121	7,898
Subscriber system assets [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	36,880	31,664
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,809	4,044
Vehicles [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	1,125	1,759
Software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	2,817	3,938
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	543	757
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$933	$1,177

Goodwill_and_Intangible_Assets2

Goodwill and Intangible Assets - Activity for Goodwill (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Roll Forward]
Beginning balance	$40,463	$40,463
Additions for current period	0	0
Accumulated impairment losses	0	0
Ending balance	$40,463	$40,463

Goodwill_and_Intangible_Assets3

Goodwill and Intangible Assets - Intangible Assets (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	$62,406	$99,871
Intangible assets, accumulated amortization	-38,074	-67,023
Intangible assets, net	24,332	32,848
Amortization	8,516	10,761	10,016
Alarm monitoring contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	58,044	94,179
Intangible assets, accumulated amortization	-35,662	-64,310
Internally developed software [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	4,347	4,347
Intangible assets, accumulated amortization	-2,400	-1,531
Nonsolicitation agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	10	1,340
Intangible assets, accumulated amortization	-9	-1,180
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible assets, gross	5	5
Intangible assets, accumulated amortization	($3)	($2)

Goodwill_and_Intangible_Assets4

Goodwill and Intangible Assets - Future Amortization of Intangible Assets (Details) (USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity
2015	$5,476
2016	4,149
2017	2,855
2018	1,995
2019	$1,907

Accrued_Expenses_Details

Accrued Expenses (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Payables and Accruals [Abstract]
Payroll and benefit related accruals	$3,885	$2,629
Interest	9,896	10,015
Other	3,120	2,555
Accrued expenses	$16,901	$15,199

LongTerm_Debt_Schedule_of_Long

Long-Term Debt - Schedule of Long-term Debt (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Instrument [Line Items]
Long-term debt	$262,000
Long-term Debt, Excluding Current Maturities	262,000	256,500
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	$26,500

LongTerm_Debt_Schedule_of_Debt

Long-Term Debt - Schedule of Debt Maturities (Details) (USD $)	Dec. 31, 2014
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 $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
Deferred financing fees	$10,921	$10,921
Accumulated amortization	-4,267	-2,083
Deferred financing fees, net	$6,654	$8,838

LongTerm_Debt_Narrative_Detail

Long-Term Debt - Narrative (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2014	Jan. 31, 2013	Mar. 30, 2015	Aug. 15, 2014	16-May-14
Debt Instrument [Line Items]
Amortization of financing fees	$2,184,000	$2,226,000	$2,630,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity					45,000,000
Revolving Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity						50,000,000
Line of Credit [Member]
Debt Instrument [Line Items]
Amount drawn	32,000,000
Amount available for borrowing	9,400,000
Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity					1,000,000
Amount drawn	100,000	100,000
Credit Agreement [Member] | Revolving Credit Facility [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%
Credit Agreement [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Line of credit, interest rate at period end	3.75%	3.75%
Credit Agreement [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Initial Spread [Member]
Debt Instrument [Line Items]
Basis spread on LIBOR				0.50%
Credit Agreement [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Additional Spread [Member]
Debt Instrument [Line Items]
Basis spread on LIBOR				3.25%
Senior secured notes [Member]
Debt Instrument [Line Items]
Senior secured notes, bid price	100
Senior secured notes, ask price	102
Senior secured notes [Member] | Fair Value, Inputs, Level 2 [Member] | Minimum [Member]
Debt Instrument [Line Items]
Fair value of debt	230,000,000
Senior secured notes [Member] | Fair Value, Inputs, Level 2 [Member] | Maximum [Member]
Debt Instrument [Line Items]
Fair value of debt	234,600,000
Senior secured notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity							5,000,000
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] | Senior Contingent Cash Pay 12 Point 50 Percent Notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Stated interest rate								12.50%
Payment in Kind (PIK) Note [Member] | Senior Contingent Cash Pay 14 Point 50 Percent Notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Stated interest rate								14.50%

Income_Taxes_Narrative_Details

Income Taxes - Narrative (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Income tax expense	$1,038	$722	$521
Effective tax rate	-4.26%	-1.53%	-1.74%
Net operating loss carry forward	$102,662	$93,479

Income_Taxes_Components_of_Inc

Income Taxes - Components of Income Taxes (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Current tax expense
Federal	$0	$0	$0
State	496	154	88
Total current	496	154	88
Deferred tax expense
Federal	485	516	485
State	57	52	-52
Total deferred	542	568	433
Total provision for income taxes	$1,038	$722	$521

Income_Taxes_Income_Tax_Reconc

Income Taxes - Income Tax Reconciliation (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Tax at U.S. statutory rate	35.00%	35.00%	35.00%
State taxes, net of benefit	-2.27%	3.11%	3.60%
Permanent differences	-10.14%	0.00%	0.00%
Valuation allowance	-27.56%	-39.34%	-40.17%
Other, net	0.71%	-0.30%	-0.17%
Effective tax rate	-4.26%	-1.53%	-1.74%

Income_Taxes_Deferred_Tax_Asse

Income Taxes - Deferred Tax Assets and Liabilities (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Income Tax Disclosure [Abstract]
Net operating loss carry forward	$102,662	$93,479
Amortizable assets	2,197	2,864
Miscellaneous accruals	894	203
Bad debt reserve	432	366
Inventory reserve	217	228
Gross deferred tax asset	106,402	97,140
Depreciable assets	-2,459	-813
Amortizable assets - acquisition costs	-1,330	-1,228
Goodwill	-6,758	-6,229
Gross deferred tax liabilities	-10,547	-8,270
Net deferred tax asset	95,855	88,870
Less: valuation allowances	-103,943	-96,364
Net deferred tax liability	($8,088)	($7,494)

Mezzanine_Equity_Narrative_Det

Mezzanine Equity - Narrative (Details) (USD $)	0 Months Ended		5 Months Ended	12 Months Ended
	30-May-14	Jan. 09, 2014	29-May-14	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Temporary Equity [Line Items]
Proceeds of issuance from common stock	$71,600,000			$71,600,000	$0	$0
Preferred stock dividends accrued at the annual rate			10.00%
Payments of dividends		27,300,000
Redeemable Class A Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)				70,000	70,000
Mezzanine equity, par value (in dollars per share)				$1	$1
Redeemable Class C Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)				60,000	60,000
Mezzanine equity, par value (in dollars per share)				$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
Mezzanine equity, par value (in dollars per share)				$1	$1
Convertible and Redeemable Class F Preferred Stock [Member]
Temporary Equity [Line Items]
Mezzanine equity, shares authorized (in shares)			50,000		5,000
Mezzanine equity, par value (in dollars per share)			1		$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		5,000
Mezzanine equity, par value (in dollars per share)			1		$1
Interface Master Holdings, Inc. [Member] | Common Stock [Member]
Temporary Equity [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent					99.00%
Interface Master Holdings, Inc. [Member] | Preferred Stock [Member]
Temporary Equity [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent					99.00%
Interface Master Holdings, Inc. [Member] | All Classes of Common and Preferred Stock [Member]
Temporary Equity [Line Items]
Noncontrolling Interest, 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

Mezzanine_Equity_Changes_in_Me

Mezzanine Equity - Changes in Mezzanine Equity (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Increase (Decrease) in Temporary Equity [Roll Forward]
Ending Balance, Shares Issued, Value	$163,399	$183,956
Class A Preferred [Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance, Shares Issued, Value	105,720	95,309	85,877
Beginning Balance, Shares Issued (in number of shares)	39	39	39
Dividends accrued on preferred stock	4,564	10,411	9,432
Dividends paid	0
Ending Balance, Shares Issued, Value	110,284	105,720	95,309
Ending Balance, Shares Issued (in number of shares)	39	39	39
Class C Preferred Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance, Shares Issued, Value	39,524	35,807	32,439
Beginning Balance, Shares Issued (in number of shares)	16	16	16
Dividends accrued on preferred stock	1,630	3,717	3,368
Dividends paid	0
Ending Balance, Shares Issued, Value	41,154	39,524	35,807
Ending Balance, Shares Issued (in number of shares)	16	16	16
Class E Preferred [Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance, Shares Issued, Value	25,073	22,715	20,579
Beginning Balance, Shares Issued (in number of shares)	11	11	11
Dividends accrued on preferred stock	502	2,358	2,136
Dividends paid	-12,961
Redemption of preferred stock	-653
Redemption of preferred stock (in number of shares)	-1
Ending Balance, Shares Issued, Value	11,961	25,073	22,715
Ending Balance, Shares Issued (in number of shares)	10	11	11
Class F Preferred [Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance, Shares Issued, Value	4,995	4,399	3,875
Beginning Balance, Shares Issued (in number of shares)	2	2	2
Dividends accrued on preferred stock	14	596	524
Dividends paid	-2,309
Redemption of preferred stock	-2,700
Redemption of preferred stock (in number of shares)	-2
Ending Balance, Shares Issued, Value	0	4,995	4,399
Ending Balance, Shares Issued (in number of shares)	0	2	2
Class G Preferred [Member]
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning Balance, Shares Issued, Value	8,644	7,831	7,094
Beginning Balance, Shares Issued (in number of shares)	2	2	2
Dividends accrued on preferred stock	19	813	737
Dividends paid	-2,642
Redemption of preferred stock	-6,021
Redemption of preferred stock (in number of shares)	-2
Ending Balance, Shares Issued, Value	$0	$8,644	$7,831
Ending Balance, Shares Issued (in number of shares)	0	2	2

Stockholders_Equity_Holdings_C

Stockholders' Equity - Holdings' Certificate of Incorporation (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
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
Class A Common Stock for Class B Common Stock [Member]
Class of Stock [Line Items]
Conversion of Stock, Number of Shares That Can Be Received in a Conversion	1

Stockholders_Equity_Related_Pa

Stockholders' Equity - Related Party (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 13, 2001
Equity [Abstract]
Related party notes receivable	$0	$100,000	$250,000

Benefit_Plan_Details

Benefit Plan (Details) (Plan [Member], USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
	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	$0.10	$0.20	$0.10

Lease_Commitments_and_Other_Ob2

Lease Commitments and Other Obligations (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Rental Payments Due
2015	$3,277,000
2016	2,361,000
2017	1,585,000
2018	1,103,000
2019 and thereafter	1,581,000
Operating leases, future minimum rental payments due	9,907,000
Operating leases, rent expense	6,100,000	4,800,000	3,800,000
Capital Leases, Future Minimum Rental Payments Due
2015	279,000
2016	240,000
2017 and thereafter	9,000
Capital leases, future minimum rental payments due	528,000
Less: current portion	-279,000
Capital leases, future minimum payments, less current portion	249,000
Capital leases for equipment and vehicles	2,200,000	2,500,000
Accumulated depreciation for capital leased assets	1,500,000	2,100,000
Notes Payable, Other Payables [Member] | Non-Interest Bearing [Member]
Debt Instrument [Line Items]
Financing arrangement for purchase of inventory	3,900,000	200,000
Financing arrangement for purchase of inventory, current portion	$1,800,000	$200,000
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 $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Concentration Risk [Line Items]
Number of major customers	2	2
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member] | Customer One [Member]
Concentration Risk [Line Items]
Concentration risk percentage	18.50%	17.20%
Customer Concentration Risk [Member] | Sales Revenue, Goods, Net [Member] | Customer Two [Member]
Concentration Risk [Line Items]
Concentration risk percentage	6.60%	4.60%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer One [Member]
Concentration Risk [Line Items]
Concentration risk percentage	17.50%	20.50%
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Customer Two [Member]
Concentration Risk [Line Items]
Concentration risk percentage	2.20%	0.60%
Vendor Concentration Risk, Subscriber System Assets [Member]
Concentration Risk [Line Items]
Payments to suppliers	14	6
Accounts payable	2.8	1
Vendor Concentration Risk, Subscriber System Assets [Member] | Purchases [Member]
Concentration Risk [Line Items]
Concentration risk percentage	12.30%	6.20%
Vendor Concentration Risk, Security Alarm and Managed Services Industry [Member]
Concentration Risk [Line Items]
Payments to suppliers	11	10.3
Accounts payable	3	2.4
Vendor Concentration Risk, Security Alarm and Managed Services Industry [Member] | Purchases [Member]
Concentration Risk [Line Items]
Concentration risk percentage	9.60%	10.70%

Noncontrolling_Interest_Detail

Noncontrolling Interest (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Nov. 30, 2004
Noncontrolling Interest [Line Items]
Noncontrolling interest share of net loss	$0	($30,000)	($39,000)
Holdings [Member]
Noncontrolling Interest [Line Items]
Percent of common stock owned			99.00%
Acquisition of remaining noncontrolling interest				$100,000
GAC [Member] | Holdings [Member]
Noncontrolling Interest [Line Items]
Voting common stock acquired					80.00%

Related_Party_Details

Related Party (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2014	Jun. 30, 2014
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
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
SunTx Management [Member] | Fees Paid Under Management Agreement [Member]
Related Party Transaction [Line Items]
Related party transactions, expenses	200,000	500,000	500,000
Former employee and shareholder [Member] | Settled Litigation [Member]
Related Party Transaction [Line Items]
Non-interest bearing loan to former employee and shareholder				$500,000
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
Percentage of common stock outstanding owned by related party				7.00%
Interface Master Holdings, Inc. [Member] | All Classes of Common and Preferred Stock [Member]
Related Party Transaction [Line Items]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%				100.00%

Unaudited_Quarterly_Financial_2

Unaudited Quarterly Financial Data (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	$34,276	$32,424	$27,427	$28,720	$32,198	$32,554	$31,745	$30,245	$122,847	$126,742	$110,445
Income (loss) from operations	-10,780	-8,180	-5,652	31,508	-6,541	-6,094	-6,004	-4,519	6,896	-23,158	-10,730
Net loss	-17,965	-15,487	-12,901	27,690	-12,842	-12,318	-12,095	-10,565	-18,663	-47,820	-29,331
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal									39,715	0	0
Transferred Assets [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal									$39,700

Subsequent_Events_Narrative_De

Subsequent Events - Narrative (Details) (USD $)	1 Months Ended	0 Months Ended	2 Months Ended
	Feb. 28, 2015	Mar. 19, 2015	Mar. 31, 2015	Jan. 31, 2013	Mar. 30, 2015	Jan. 20, 2015
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity				$45,000,000
Subsequent Event [Member]
Subsequent Event [Line Items]
Extension of Contractual Services, Period of Time	3 years
Increase (Decrease) in Monthly Revenue, Contractual Agreement	118,000
Subsequent Event [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Maximum borrowing capacity					50,000,000
Subsequent Event [Member] | Purchase of Inventory and Managed Support Services [Member]
Subsequent Event [Line Items]
Face amount of debt issued		900,000
Debt Instrument, Term		24 months
Subsequent Event [Member] | Former Senior Executive and Current Shareholder [Member]
Subsequent Event [Line Items]
Contractual Obligation						1,200,000
Sales Commissions and Fees			$400,000

Condensed_Consolidating_Financ1

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

Schedule_IIValuation_and_Quali1

Schedule II-Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$96,364	$82,161	$54,505
Additions to Deferred Taxes	7,579	14,203	27,656
Balance at End of Year	$103,943	$96,364	$82,161