Changes In Accounting Policies	9 Months Ended
Sep. 30, 2018
Changes In Accounting Policies [Abstract]
Changes In Accounting Policies	4. Changes in Accounting Policies The Company’s significant accounting policies are detailed in “Note 1: Summary of Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. In May 2014, the FASB issued ASU 2014-09 “Topic 606. Revenue from Contracts with Customers” (Topic 606). Topic 606 supersedes the revenue recognition requirements previously set forth in the Accounting Standards Codification (ASC) Topic 605 “Revenue Recognition,” and requires entities to recognize revenue when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The Company adopted Topic 606 with a date of initial application of January 1, 2018. The Company applied Topic 606 retrospectively using the practical expedient in ASC 606-10-65-1(f)(3). The Company notes that all previously reported historical amounts are adjusted for the impact of ASC 606. Changes to the Company’s significant accounting policies as a result of adopting Topic 606 are discussed below: Revenue recognition - Revenue is measured based on consideration specified in the contract with a customer, adjusted for any applicable estimates of variable consideration and other factors affecting the transaction price, including noncash consideration, consideration paid or payable to customers and significant financing components. Revenue from all customers is recognized when a performance obligation is satisfied by transferring control of a distinct good or service to a customer, as further described below under “Performance obligations”. Individual promised goods and services in a contract are considered a performance obligation and accounted for separately if the individual good or service is distinct, i.e., the customer can benefit from the good or service on its own or with other resources that are readily available to the customer and the good or service is separately identifiable from other promises in the arrangement. When an arrangement includes multiple performance obligations, the consideration is allocated between the performance obligations in proportion to their estimated stand-alone selling price. Costs related to products delivered are recognized in the period incurred, unless criteria for capitalization of costs under ASC 340-40 or other applicable guidance are met. Cost of revenues consist primarily of direct labor, manufacturing overhead, materials and components. The Company excludes from revenue taxes collected from a customer that are assessed by a governmental authority and imposed on and concurrent with a specific revenue-producing transaction. The Company includes shipping and handling fees in sales. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in cost of sales. The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet as further described below under “Receivables, net”, “Contract assets” and “Contract liabilities”. When more than one party is involved in providing goods or services to a customer, an entity determines whether it is a principal or an agent in these transactions by evaluating the nature of its promise to the customer. An entity is a principal and therefore records revenue on a gross basis if it controls a promised good or service before transferring that good or service to the customer. An entity is an agent and records as revenue the net amount it retains for its agency services if its role is to arrange for another entity to provide the goods or services. Performance obligations - A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is the unit of account under ASC Topic 606. A contract’s transaction price is allocated to each distinct performance obligation in proportion to the standalone selling price for each and recognized as revenue when, or as, the performance obligation is satisfied. The Company’s various performance obligations and the timing or method of revenue recognition in each of the Company’s markets are discussed below: Medical biotelemetry market - Customer orders from the medical biotelemetry market consist of a specified number of assembled and customized parts that the customer further integrates into their production process to produce market ready products. Customer orders do not include additional follow-on goods or services. With the exception of prompt payment discounts, the transaction price for medical biotelemetry market products is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present. All of the Company’s products manufactured for the medical biotelemetry market are designed to each customer’s specifications, do not have an alternative use and cannot be sold or redirected by the Company to others. The Company has an enforceable right to payment for any finished or in-process units, including a reasonable margin, if the customer terminates the contract for reasons other than the Company’s failure to perform as promised. Control of these units is deemed to transfer to the customer over time during the manufacturing process, using the same measure of progress toward satisfying the promise to deliver the units to the customer. Each order is for a series of distinct units that comprise a single performance obligation. Consequently, the transaction price is recognized as revenue over time based on actual costs incurred in the manufacturing process to date relative to total expected costs to produce all ordered units. Medical biotelemetry market products are invoiced when shipped and paid within normal commercial terms. The Company records a contract asset for revenue recognized over time in the production process for customized products that have not been shipped or invoiced to the customer. Hearing health market - Customer orders from the hearing health market consist of hearing aid devices and related accessories. Each unit of product delivered under a customer order represents a distinct and separate performance obligation as the customer can benefit from each unit on its own or with other resources that are readily available to the customer and each unit of product is separately identifiable from other products in the arrangement. With the exception of prompt payment discounts, the transaction price for the hearing health markets products is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present. Nearly all of the Company’s products manufactured for the hearing health market could be reworked without significant cost and sold to another customer in the event of the customer’s termination of an order before delivery, and therefore have an alternative use to the Company. Generally, revenue is recognized upon the transfer of control of the products which is based on shipment terms; however, in certain cases the amount of shipment is adjusted for expected future returns and related consideration received. Professional audio market - The Company sells body-worn audio devices with application in the aviation, fire, law enforcement, safety and military markets as well as for performers and production staff in the music and stage performance markets. Each unit on a customer’s purchase order represents a distinct and separate performance obligation as the customer can benefit from each unit on its own or with other resources that are readily available to the customer and each unit is separately identifiable from the others because one does not significantly affect, modify or customize another. Variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting the transaction price are not present. Invoiced amounts are deemed to approximate standalone selling price, such that a relative standalone selling price allocation between performance obligations is not required. The products manufactured for the professional audio market could be reworked without significant cost and sold to another customer in the event of the customer’s termination of an order before delivery and therefore have an alternative use to the Company. Transfer of control of the goods, and revenue recognition, occurs at the point in time of shipment or delivery of the products to the customer depending on the applicable shipping terms. Professional audio market products are billed when shipped and paid within normal commercial terms. Hearing health direct-to-consumer (DTC) market - The hearing health DTC business distributes hearing aids and related accessories to the end consumer and is the Company’s only business market that generates revenue from sales to the end consumer. The Company also sells a limited number of service plans for the hearing aids. Each product or service is a distinct performance obligation as each is independently useful either on its own or together with other products procured from the Company or other vendors and each product or service is separately identifiable from the others because one does not significantly affect, modify or customize another. Invoiced amounts are deemed to approximate standalone selling price, therefore a relative standalone selling price allocation between performance obligations is not required. The hearing health DTC business offers a 60-day trial period to the end consumer for hearing aids, during which customers can return the hearing aids for a full refund or exchange for a different hearing aid. The Company invoices for the hearing aids and recognizes revenue only after completion of the 60-day trial period, when the customer’s commitment to the arrangement is deemed to exist and an enforceable right to payment is established. The transaction price for hearing aid accessories and service plans is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present. Hearing aid accessories are billed and revenue is recognized upon shipment to the customer. Invoices are paid within normal commercial terms. Annual service plans are billed along with the hearing aid at the end of the 60-day trial period or upon renewal of the service plan, and paid within normal commercial terms. As the customer consumes the benefits of the service plan relatively evenly over the plan term, revenue for service plans is recognized on a straight-line basis commencing at the end of the trial period. Receivables, net – Excluding the hearing health direct-to-consumer market, amounts recorded in receivables, net, on the consolidated balance sheet include amounts billed and currently due from customers. The amounts due are stated at their net estimated realizable value. An allowance for doubtful accounts is maintained to provide for the estimated amount of receivables that will not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience and the age of outstanding receivables. For the hearing health direct-to-consumer market, receivables, net, include amounts billed and currently due from customers and amounts to become due from customers on trial programs. The amounts due are stated at their net estimated realizable value. An allowance for doubtful accounts is maintained to provide for the estimated amount of receivables that will not be collected. Contract Assets - Contract assets primarily include unbilled amounts recognized as revenue for customized products manufactured for the medical biotelemetry market. The customized goods have no alternative use to the Company and the Company has an enforceable right to payment for performance completed to date. The Company begins revenue recognition when these goods enter the manufacturing process and continues based on a measure of progress toward completion using a cost-to-cost input method that considers labor and overhead costs incurred and materials used to date in the manufacturing process relative to total expected production costs. Given the relatively short duration of the production process, contract assets are classified as current. Contract assets are reclassified to accounts receivable upon shipment of and invoicing for the products, at which point the right to consideration becomes unconditional. Sales Commissions - Sales commissions paid to sales representatives are eligible for capitalization as they are incremental costs that would not have been incurred without entering into a specific sales arrangement and are recoverable through the expected margin on the transaction. The Company has elected to apply the practical expedient provided by ASC 340-40-25-4 and recognize the incremental costs of obtaining contracts as an expense when incurred, as the amortization period of the assets that would have otherwise been recognized is one year or less. These costs are included in sales and marketing expenses on the consolidated statements of operations. Product Warranty - The Company offers warranties on various products and services. These warranties are assurance type warranties not sold on a standalone basis, and therefore are not considered distinct performance obligations. The Company estimates the costs that may be incurred under its warranties and records a liability in the amount of such costs at the time the product is sold.

4. Changes in Accounting Policies

The Company’s significant accounting policies are detailed in “Note 1: Summary of Significant Accounting Policies” of the Company’s Annual Report on Form 10-K for the year ended December 31, 2017. In May 2014, the FASB issued ASU 2014-09 “Topic 606. Revenue from Contracts with Customers” (Topic 606). Topic 606 supersedes the revenue recognition requirements previously set forth in the Accounting Standards Codification (ASC) Topic 605 “Revenue Recognition,” and requires entities to recognize revenue when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. The Company adopted Topic 606 with a date of initial application of January 1, 2018.

The Company applied Topic 606 retrospectively using the practical expedient in ASC 606-10-65-1(f)(3). The Company notes that all previously reported historical amounts are adjusted for the impact of ASC 606.

Changes to the Company’s significant accounting policies as a result of adopting Topic 606 are discussed below:

Revenue recognition - Revenue is measured based on consideration specified in the contract with a customer, adjusted for any applicable estimates of variable consideration and other factors affecting the transaction price, including noncash consideration, consideration paid or payable to customers and significant financing components. Revenue from all customers is recognized when a performance obligation is satisfied by transferring control of a distinct good or service to a customer, as further described below under “Performance obligations”.

Individual promised goods and services in a contract are considered a performance obligation and accounted for separately if the individual good or service is distinct, i.e., the customer can benefit from the good or service on its own or with other resources that are readily available to the customer and the good or service is separately identifiable from other promises in the arrangement. When an arrangement includes multiple performance obligations, the consideration is allocated between the performance obligations in proportion to their estimated stand-alone selling price. Costs related to products delivered are recognized in the period incurred, unless criteria for capitalization of costs under ASC 340-40 or other applicable guidance are met. Cost of revenues consist primarily of direct labor, manufacturing overhead, materials and components.

The Company excludes from revenue taxes collected from a customer that are assessed by a governmental authority and imposed on and concurrent with a specific revenue-producing transaction.

The Company includes shipping and handling fees in sales. Shipping and handling costs associated with outbound freight after control over a product has transferred to a customer are accounted for as a fulfillment cost and are included in cost of sales.

The timing of revenue recognition, billings and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Consolidated Balance Sheet as further described below under “Receivables, net”, “Contract assets” and “Contract liabilities”.

When more than one party is involved in providing goods or services to a customer, an entity determines whether it is a principal or an agent in these transactions by evaluating the nature of its promise to the customer. An entity is a principal and therefore records revenue on a gross basis if it controls a promised good or service before transferring that good or service to the customer. An entity is an agent and records as revenue the net amount it retains for its agency services if its role is to arrange for another entity to provide the goods or services.

Performance obligations - A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is the unit of account under ASC Topic 606. A contract’s transaction price is allocated to each distinct performance obligation in proportion to the standalone selling price for each and recognized as revenue when, or as, the performance obligation is satisfied. The Company’s various performance obligations and the timing or method of revenue recognition in each of the Company’s markets are discussed below:

Medical biotelemetry market - Customer orders from the medical biotelemetry market consist of a specified number of assembled and customized parts that the customer further integrates into their production process to produce market ready products. Customer orders do not include additional follow-on goods or services.

With the exception of prompt payment discounts, the transaction price for medical biotelemetry market products is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present.

All of the Company’s products manufactured for the medical biotelemetry market are designed to each customer’s specifications, do not have an alternative use and cannot be sold or redirected by the Company to others. The Company has an enforceable right to payment for any finished or in-process units, including a reasonable margin, if the customer terminates the contract for reasons other than the Company’s failure to perform as promised. Control of these units is deemed to transfer to the customer over time during the manufacturing process, using the same measure of progress toward satisfying the promise to deliver the units to the customer. Each order is for a series of distinct units that comprise a single performance obligation. Consequently, the transaction price is recognized as revenue over time based on actual costs incurred in the manufacturing process to date relative to total expected costs to produce all ordered units.

Medical biotelemetry market products are invoiced when shipped and paid within normal commercial terms. The Company records a contract asset for revenue recognized over time in the production process for customized products that have not been shipped or invoiced to the customer.

Hearing health market - Customer orders from the hearing health market consist of hearing aid devices and related accessories. Each unit of product delivered under a customer order represents a distinct and separate performance obligation as the customer can benefit from each unit on its own or with other resources that are readily available to the customer and each unit of product is separately identifiable from other products in the arrangement.

With the exception of prompt payment discounts, the transaction price for the hearing health markets products is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present.

Nearly all of the Company’s products manufactured for the hearing health market could be reworked without significant cost and sold to another customer in the event of the customer’s termination of an order before delivery, and therefore have an alternative use to the Company. Generally, revenue is recognized upon the transfer of control of the products which is based on shipment terms; however, in certain cases the amount of shipment is adjusted for expected future returns and related consideration received.

Professional audio market - The Company sells body-worn audio devices with application in the aviation, fire, law enforcement, safety and military markets as well as for performers and production staff in the music and stage performance markets. Each unit on a customer’s purchase order represents a distinct and separate performance obligation as the customer can benefit from each unit on its own or with other resources that are readily available to the customer and each unit is separately identifiable from the others because one does not significantly affect, modify or customize another.

Variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting the transaction price are not present. Invoiced amounts are deemed to approximate standalone selling price, such that a relative standalone selling price allocation between performance obligations is not required.

The products manufactured for the professional audio market could be reworked without significant cost and sold to another customer in the event of the customer’s termination of an order before delivery and therefore have an alternative use to the Company. Transfer of control of the goods, and revenue recognition, occurs at the point in time of shipment or delivery of the products to the customer depending on the applicable shipping terms. Professional audio market products are billed when shipped and paid within normal commercial terms.

Hearing health direct-to-consumer (DTC) market - The hearing health DTC business distributes hearing aids and related accessories to the end consumer and is the Company’s only business market that generates revenue from sales to the end consumer. The Company also sells a limited number of service plans for the hearing aids. Each product or service is a distinct performance obligation as each is independently useful either on its own or together with other products procured from the Company or other vendors and each product or service is separately identifiable from the others because one does not significantly affect, modify or customize another. Invoiced amounts are deemed to approximate standalone selling price, therefore a relative standalone selling price allocation between performance obligations is not required.

The hearing health DTC business offers a 60-day trial period to the end consumer for hearing aids, during which customers can return the hearing aids for a full refund or exchange for a different hearing aid. The Company invoices for the hearing aids and recognizes revenue only after completion of the 60-day trial period, when the customer’s commitment to the arrangement is deemed to exist and an enforceable right to payment is established.

The transaction price for hearing aid accessories and service plans is the invoiced amount, as variable consideration in the form of refunds, credits, rebates, price concessions, pricing incentives or other items impacting transaction price are not present. Hearing aid accessories are billed and revenue is recognized upon shipment to the customer. Invoices are paid within normal commercial terms. Annual service plans are billed along with the hearing aid at the end of the 60-day trial period or upon renewal of the service plan, and paid within normal commercial terms. As the customer consumes the benefits of the service plan relatively evenly over the plan term, revenue for service plans is recognized on a straight-line basis commencing at the end of the trial period.

Receivables, net – Excluding the hearing health direct-to-consumer market, amounts recorded in receivables, net, on the consolidated balance sheet include amounts billed and currently due from customers. The amounts due are stated at their net estimated realizable value. An allowance for doubtful accounts is maintained to provide for the estimated amount of receivables that will not be collected. The allowance is based upon an assessment of customer creditworthiness, historical payment experience and the age of outstanding receivables. For the hearing health direct-to-consumer market, receivables, net, include amounts billed and currently due from customers and amounts to become due from customers on trial programs. The amounts due are stated at their net estimated realizable value. An allowance for doubtful accounts is maintained to provide for the estimated amount of receivables that will not be collected.

Contract Assets - Contract assets primarily include unbilled amounts recognized as revenue for customized products manufactured for the medical biotelemetry market. The customized goods have no alternative use to the Company and the Company has an enforceable right to payment for performance completed to date. The Company begins revenue recognition when these goods enter the manufacturing process and continues based on a measure of progress toward completion using a cost-to-cost input method that considers labor and overhead costs incurred and materials used to date in the manufacturing process relative to total expected production costs. Given the relatively short duration of the production process, contract assets are classified as current. Contract assets are reclassified to accounts receivable upon shipment of and invoicing for the products, at which point the right to consideration becomes unconditional.

Sales Commissions - Sales commissions paid to sales representatives are eligible for capitalization as they are incremental costs that would not have been incurred without entering into a specific sales arrangement and are recoverable through the expected margin on the transaction. The Company has elected to apply the practical expedient provided by ASC 340-40-25-4 and recognize the incremental costs of obtaining contracts as an expense when incurred, as the amortization period of the assets that would have otherwise been recognized is one year or less. These costs are included in sales and marketing expenses on the consolidated statements of operations.

Product Warranty - The Company offers warranties on various products and services. These warranties are assurance type warranties not sold on a standalone basis, and therefore are not considered distinct performance obligations. The Company estimates the costs that may be incurred under its warranties and records a liability in the amount of such costs at the time the product is sold.