Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Basis Of Presentation And Use Of Estimates [Policy Text Block]

Basis of Presentation and Use of Estimates

The 

accompanying 

consolidated 

financial 

statements 

include 

our 

accounts 

and 

those 

of 

our 

wholly 

owned 

subsidiaries. 

All 

significant 

intercompany 

accounts 

and 

transactions 

have 

been 

eliminated 

upon 

consolidation. 

The 

preparation 

of 

financial 

statements 

in 

conformity 

with 

accounting 

principles 

generally 

accepted 

in 

the 

United 

States 

of 

America 

("U.S. 

GAAP") 

requires 

us 

to 

make 

estimates 

and 

assumptions 

that 

affect 

the 

reported 

amounts 

of 

assets 

and 

liabilities 

and 

disclosure 

of 

contingent 

assets 

and 

liabilities 

at 

the 

date 

of 

the 

financial 

statements 

and 

the 

reported 

amounts 

of 

revenues 

and 

expenses 

during 

the 

reporting 

period. 

Actual 

results 

could 

differ 

from 

those 

estimates. 

Certain 

of 

our 

accounts, 

including 

inventories, 

long 

lived 

assets, 

goodwill, 

identifiable 

intangibles 

and 

deferred 

tax 

assets 

and 

liabilities 

including 

related 

valuation 

allowances, 

are 

particularly 

impacted 

by 

estimates.

Reclassification, Policy [Policy Text Block]

Reclassification

Certain 

prior 

year 

amounts 

have 

been 

reclassified 

to 

be 

comparable 

with 

the 

current 

year's 

presentation.

Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents

Short 

term 

investments 

that 

have 

maturities 

of 

three 

months 

or 

less 

when 

purchased 

are 

considered 

to 

be 

cash 

equivalents 

and 

are 

carried 

at 

cost, 

which 

approximates 

market 

value. 

Our 

cash 

balances, 

which 

are 

deposited 

with 

highly 

reputable 

financial 

institutions, 

at 

times 

may 

exceed 

the 

federally 

insured 

limits. 

We 

have 

not 

experienced 

any 

losses 

related 

to 

these 

cash 

balances 

and 

believe 

the 

credit 

risk 

to 

be 

minimal.

Receivables, Policy [Policy Text Block]

Trade Accounts Receivable and Allowance for Doubtful Accounts

Trade 

accounts 

receivable 

are 

recorded 

at 

the 

invoiced 

amount 

and 

do 

not 

bear 

interest. 

We 

grant 

credit 

to 

customers 

and 

generally 

require 

no 

collateral. 

To 

minimize 

our 

risk, 

we 

perform 

ongoing 

credit 

evaluations 

of 

our 

customers' 

financial 

condition. 

The 

allowance 

for 

doubtful 

accounts 

is 

our 

best 

estimate 

of 

the 

amount 

of 

probable 

credit 

losses 

in 

our 

existing 

accounts 

receivable. 

We 

determine 

the 

allowance 

based 

on 

historical 

write 

off 

experience 

and 

the 

aging 

of 

such 

receivables, 

among 

other 

factors. 

Account 

balances 

are 

charged 

off 

against 

the 

allowance 

after 

all 

means 

of 

collection 

have 

been 

exhausted 

and 

the 

potential 

for 

recovery 

is 

considered 

remote. 

We 

do 

not 

have 

any 

off 

balance 

sheet 

credit 

exposure 

related 

to 

our 

customers. 

There 

was 

no 

bad 

debt 

expense 

recorded 

in 

either 

of 

the 

years 

ended 

December 

31, 

2015 

or 

2014. 

Cash 

flows 

from 

accounts 

receivable 

are 

recorded 

in 

operating 

cash 

flows.

Fair Value Measurement, Policy [Policy Text Block]

Fair Value of Financial Instruments

Our 

financial 

instruments, 

principally 

accounts 

receivable 

and 

accounts 

payable, 

are 

carried 

at 

cost 

which 

approximates 

fair 

value, 

due 

to 

the 

short 

maturities 

of 

the 

accounts.

Inventory, Policy [Policy Text Block]

Inventories

Inventories 

are 

valued 

at 

cost 

on 

a 

first 

in, 

first 

out 

basis, 

not 

in 

excess 

of 

market 

value. 

Cash 

flows 

from 

the 

sale 

of 

inventories 

are 

recorded 

in 

operating 

cash 

flows. 

On 

a 

quarterly 

basis, 

we 

review 

our 

inventories 

and 

record 

excess 

and 

obsolete 

inventory 

charges 

based 

upon 

our 

established 

objective 

excess 

and 

obsolete 

inventory 

criteria. 

These 

criteria 

identify 

material 

that 

has 

not 

been 

used 

in 

a 

work 

order 

during 

the 

prior 

twelve 

months 

and 

the 

quantity 

of 

material 

on 

hand 

that 

is 

greater 

than 

the 

average 

annual 

usage 

of 

that 

material 

over 

the 

prior 

three 

years. 

In 

certain 

cases, 

additional 

excess 

and 

obsolete 

inventory 

charges 

are 

recorded 

based 

upon 

current 

market 

conditions, 

anticipated 

product 

life 

cycles, 

new 

product 

introductions 

and 

expected 

future 

use 

of 

the 

inventory. 

The 

excess 

and 

obsolete 

inventory 

charges 

we 

record 

establish 

a 

new 

cost 

basis 

for 

the 

related 

inventories. 

We 

incurred 

excess 

and 

obsolete 

inventory 

charges 

of 

$342 

and 

$344 

for 

the 

years 

ended 

December 

31, 

2015 

and 

2014, 

respectively.

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment

Machinery 

and 

equipment 

are 

stated 

at 

cost. 

As 

further 

discussed 

below 

under 

"Goodwill, 

Intangible 

and 

Long 

Lived 

Assets," 

machinery 

and 

equipment 

that 

has 

been 

determined 

to 

be 

impaired 

is 

written 

down 

to 

its 

fair 

value 

at 

the 

time 

of 

the 

impairment. 

Depreciation 

is 

based 

upon 

the 

estimated 

useful 

life 

of 

the 

assets 

using 

the 

straight 

line 

method. 

The 

estimated 

useful 

lives 

range 

from 

one 

to 

ten 

years. 

Leasehold 

improvements 

are 

recorded 

at 

cost 

and 

amortized 

over 

the 

shorter 

of 

the 

lease 

term 

or 

the 

estimated 

useful 

life 

of 

the 

asset. 

Total 

depreciation 

expense 

was 

$465 

and 

$524 

for 

the 

years 

ended 

December 

31, 

2015 

and 

2014, 

respectively.

Goodwill Intangible And Long Lived Assets [Policy Text Block]

Goodwill, Intangible and Long-Lived Assets

We 

account 

for 

goodwill 

and 

intangible 

assets 

in 

accordance 

with 

Accounting 

Standards 

Codification 

("ASC") 

350 

(Intangibles 

Goodwill 

and 

Other). 

Finite 

lived 

intangible 

assets 

are 

amortized 

over 

their 

estimated 

useful 

economic 

life 

and 

are 

carried 

at 

cost 

less 

accumulated 

amortization. 

Goodwill 

is 

assessed 

for 

impairment 

at 

least 

annually 

in 

the 

fourth 

quarter, 

on 

a 

reporting 

unit 

basis, 

or 

more 

frequently 

when 

events 

and 

circumstances 

occur 

indicating 

that 

the 

recorded 

goodwill 

may 

be 

impaired. 

As 

a 

part 

of 

the 

goodwill 

impairment 

assessment, 

we 

have 

the 

option 

to 

perform 

a 

qualitative 

assessment 

to 

determine 

whether 

it 

is 

more 

likely 

than 

not 

that 

the 

fair 

value 

of 

a 

reporting 

unit 

is 

less 

than 

its 

carrying 

amount. 

If 

we 

determine 

this 

is 

the 

case, 

we 

are 

required 

to 

perform 

a 

two 

step 

goodwill 

impairment 

test 

to 

identify 

potential 

goodwill 

impairment 

and 

measure 

the 

amount 

of 

goodwill 

impairment 

loss 

to 

be 

recognized. 

The 

two 

step 

test 

is 

discussed 

below. 

If 

we 

determine 

that 

it 

is 

more 

likely 

than 

not 

that 

the 

fair 

value 

of 

the 

reporting 

unit 

is 

greater 

than 

its 

carrying 

amounts, 

the 

two 

step 

goodwill 

impairment 

test 

is 

not 

required. 

If 

we 

determine 

it 

is 

more 

likely 

than 

not 

that 

the 

fair 

value 

of 

a 

reporting 

unit 

is 

less 

than 

its 

carrying 

amount 

as 

a 

result 

of 

our 

qualitative 

assessment, 

we 

will 

perform 

a 

quantitative 

two 

step 

goodwill 

impairment 

test. 

In 

the 

Step 

I 

test, 

the 

fair 

value 

of 

a 

reporting 

unit 

is 

computed 

and 

compared 

with 

its 

book 

value. 

If 

the 

book 

value 

of 

a 

reporting 

unit 

exceeds 

its 

fair 

value, 

a 

Step 

II 

test 

is 

performed 

in 

which 

the 

implied 

fair 

value 

of 

goodwill 

is 

compared 

with 

the 

carrying 

amount 

of 

goodwill. 

If 

the 

carrying 

amount 

of 

goodwill 

exceeds 

the 

implied 

fair 

value, 

an 

impairment 

loss 

is 

recorded 

in 

an 

amount 

equal 

to 

that 

excess. 

The 

two 

step 

goodwill 

impairment 

assessment 

is 

based 

upon 

a 

combination 

of 

the 

income 

approach, 

which 

estimates 

the 

fair 

value 

of 

our 

reporting 

units 

based 

upon 

a 

discounted 

cash 

flow 

approach, 

and 

the 

market 

approach 

which 

estimates 

the 

fair 

value 

of 

our 

reporting 

units 

based 

upon 

comparable 

market 

multiples. 

This 

fair 

value 

is 

then 

reconciled 

to 

our 

market 

capitalization 

at 

year 

end 

with 

an 

appropriate 

control 

premium. 

The 

determination 

of 

the 

fair 

value 

of 

our 

reporting 

units 

requires 

management 

to 

make 

significant 

estimates 

and 

assumptions 

including 

the 

selection 

of 

appropriate 

peer 

group 

companies, 

control 

premiums, 

discount 

rate, 

terminal 

growth 

rates, 

forecasts 

of 

revenue 

and 

expense 

growth 

rates, 

changes 

in 

working 

capital, 

depreciation, 

amortization 

and 

capital 

expenditures. 

Changes 

in 

assumptions 

concerning 

future 

financial 

results 

or 

other 

underlying 

assumptions 

could 

have 

a 

significant 

impact 

on 

either 

the 

fair 

value 

of 

the 

reporting 

unit 

or 

the 

amount 

of 

the 

goodwill 

impairment 

charge. 

Indefinite 

lived 

intangible 

assets 

are 

assessed 

for 

impairment 

at 

least 

annually 

in 

the 

fourth 

quarter, 

or 

more 

frequently 

if 

events 

or 

changes 

in 

circumstances 

indicate 

that 

the 

asset 

might 

be 

impaired. 

As 

a 

part 

of 

the 

impairment 

assessment, 

we 

have 

the 

option 

to 

perform 

a 

qualitative 

assessment 

to 

determine 

whether 

it 

is 

more 

likely 

than 

not 

that 

an 

indefinite 

lived 

intangible 

asset 

is 

impaired. 

If, 

as 

a 

result 

of 

our 

qualitative 

assessment, 

we 

determine 

that 

it 

is 

more 

likely 

than 

not 

that 

the 

fair 

value 

of 

the 

indefinite 

lived 

intangible 

asset 

is 

less 

than 

its 

carrying 

amount, 

the 

quantitative 

impairment 

test 

is 

required. 

Otherwise, 

no 

further 

testing 

is 

required. 

The 

quantitative 

impairment 

test 

consists 

of 

a 

comparison 

of 

the 

fair 

value 

of 

the 

intangible 

asset 

with 

its 

carrying 

amount. 

If 

the 

carrying 

amount 

of 

the 

intangible 

asset 

exceeds 

its 

fair 

value, 

an 

impairment 

loss 

is 

recognized 

in 

an 

amount 

equal 

to 

that 

excess. 

Long-lived assets, which consist of finite-lived intangible assets and property and equipment, are assessed for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate. Each impairment test is based on a comparison of the estimated undiscounted cash flows to the recorded value of the asset. If impairment is indicated, the asset is written down to its estimated fair value. The cash flow estimates used to determine the impairment, if any, contain management's best estimates using appropriate assumptions and projections at that time.

Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]

Stock-Based Compensation

We account for stock-based compensation in accordance with ASC Topic 718 (Compensation - Stock Compensation) which requires that employee share-based equity awards be accounted for under the fair value method and requires the use of an option pricing model for estimating fair value, which is then amortized to expense over the service periods. See further disclosures related to our stock-based compensation plans in Note 12.

Subsequent Events, Policy [Policy Text Block]

Subsequent Events

We have made an assessment of our operations and determined that there were no material subsequent events requiring adjustment to, or disclosure in, our consolidated financial statements for the year ended December 31, 2015 other than the events discussed in Note 17.

Revenue Recognition, Policy [Policy Text Block]

Revenue Recognition

We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable, and collection of the related receivable is reasonably assured. Sales of our products are made through our sales employees, third-party sales representatives and distributors. There are no differences in revenue recognition policies based on the sales channel. We do not provide our customers with rights of return or exchanges. Revenue is generally recognized upon product shipment. Our customers' purchase orders do not typically contain any customer-specific acceptance criteria, other than that the product performs within the agreed upon specifications. We test all products manufactured as part of our quality assurance process to determine that they comply with specifications prior to shipment to a customer. To the extent that any customer purchase order contains customer-specific acceptance criteria, revenue recognition is deferred until customer acceptance.

In addition, in our Thermal Products segment, we lease certain of our equipment to customers under non-cancellable operating leases. These leases generally have an initial term of six months. We recognize revenue for these leases on a straight-line basis over the term of the lease.

With respect to sales tax collected from customers and remitted to governmental authorities, we use a net presentation in our consolidated statement of operations. As a result, there are no amounts included in either our net revenues or cost of revenues related to sales tax.

Standard Product Warranty, Policy [Policy Text Block]

Product Warranties

We generally provide product warranties and record estimated warranty expense at the time of sale based upon historical claims experience. Warranty expense is included in selling expense in the consolidated financial statements.

Research and Development Expense, Policy [Policy Text Block]

Engineering and Product Development

Engineering and product development costs, which consist primarily of the salary and related benefits costs of our technical staff, as well as the cost of materials used in product development, are expensed as incurred.

Foreign Currency Transactions and Translations Policy [Policy Text Block]

Foreign Currency

For our foreign subsidiary whose functional currency is not the U.S. dollar, assets and liabilities are translated using the exchange rate in effect at the balance sheet date. The results of operations are translated using an average exchange rate for the period. The effects of rate fluctuations in translating assets and liabilities of these international operations into U.S. dollars are included in accumulated other comprehensive earnings in stockholders' equity. Transaction gains or losses are included in net earnings. For the years ended December 31, 2015 and 2014, foreign currency transaction losses were $33 and $44, respectively.

Income Tax, Policy [Policy Text Block]

Income Taxes

The 

asset 

and 

liability 

method 

is 

used 

in 

accounting 

for 

income 

taxes. 

Under 

this 

method, 

deferred 

tax 

assets 

and 

liabilities 

are 

recognized 

for 

operating 

loss 

and 

tax 

credit 

carryforwards 

and 

for 

the 

future 

tax 

consequences 

attributable 

to 

differences 

between 

the 

financial 

statement 

carrying 

amounts 

of 

existing 

assets 

and 

liabilities 

and 

their 

respective 

tax 

bases. 

Deferred 

tax 

assets 

and 

liabilities 

are 

measured 

using 

enacted 

tax 

rates 

expected 

to 

apply 

to 

taxable 

income 

in 

the 

years 

in 

which 

those 

temporary 

differences 

are 

expected 

to 

be 

recovered 

or 

settled. 

The 

effect 

on 

deferred 

tax 

assets 

and 

liabilities 

of 

a 

change 

in 

tax 

rates 

is 

recognized 

in 

the 

results 

of 

operations 

in 

the 

period 

that 

includes 

the 

enactment 

date. 

A 

valuation 

allowance 

is 

recorded 

to 

reduce 

the 

carrying 

amounts 

of 

deferred 

tax 

assets 

if 

it 

is 

more 

likely 

than 

not 

that 

such 

assets 

will 

not 

be 

realized.

Earnings Per Share, Policy [Policy Text Block]

Net Earnings Per Common Share

Net 

earnings 

per 

common 

share 

basic 

is 

computed 

by 

dividing 

net 

earnings 

by 

the 

weighted 

average 

number 

of 

common 

shares 

outstanding 

during 

each 

period. 

Net 

earnings 

per 

common 

share 

diluted 

is 

computed 

by 

dividing 

net 

earnings 

by 

the 

weighted 

average 

number 

of 

common 

shares 

and 

common 

share 

equivalents 

outstanding 

during 

each 

period. 

Common 

share 

equivalents 

represent 

unvested 

shares 

of 

restricted 

stock 

and 

stock 

options 

and 

are 

calculated 

using 

the 

treasury 

stock 

method. 

Common 

share 

equivalents 

are 

excluded 

from 

the 

calculation 

if 

their 

effect 

is 

anti 

dilutive. 

The 

table 

below 

sets 

forth, 

for 

the 

periods 

indicated, 

a 

reconciliation 

of 

weighted 

average 

common 

shares 

outstanding 

basic 

to 

weighted 

average 

common 

shares 

and 

common 

share 

equivalents 

outstanding 

diluted 

and 

the 

average 

number 

of 

potentially 

dilutive 

securities 

that 

were 

excluded 

from 

the 

calculation 

of 

diluted 

earnings 

per 

share 

because 

their 

effect 

was 

anti 

dilutive: 

	Years Ended December 31,
	2015		2014
Weighted average common shares outstanding - basic		10,473,210		10,431,743
Potentially dilutive securities:
Unvested shares of restricted stock and employee stock options		20,620		34,321
Weighted average common shares outstanding - diluted		10,493,830		10,466,064
Average number of potentially dilutive securities excluded from calculation		-		4,753

New Accounting Pronouncements, Policy [Policy Text Block]

Effect of Recently Issued Amendments to Authoritative Accounting Guidance

In February 2016, the Financial Accounting Standards Board (“FASB”) issued amendments to the current guidance on accounting for lease transactions which is presented in ASC Topic 842 (Leases). The intent of the updated guidance is to increase transparency and comparability among organizations by requiring lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by leases and to disclose key information about leasing arrangements. Under the new guidance, a lessee will be required to record a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The amendments are effective for us as of January 1, 2019. A modified retrospective transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. We are currently evaluating the impact of the implementation of these amendments on our consolidated financial statements.

In January 2016, the

FASB issued amendments to the current guidance on the recognition and measurement of financial assets and financial liabilities which is presented in ASC Topic 825 (Financial Instruments). The intent of the updated guidance is to enhance the reporting model for financial instruments to provide users of financial statements with improved decision-making information. The updated guidance includes amendments to address aspects of recognition, measurement, presentation and disclosure. Changes included in the amendments are the requirement to measure equity investments at fair value, except those accounted for under the equity method of accounting or those that result in the consolidation of an investee, with changes in fair value recognized in net income; the requirement for a qualitative assessment to identify impairment of equity investments without readily determinable fair values; and the requirement for separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. The amendments are effective for us as of January 1, 2018.

Early application is permitted. We do not expect the implementation of these amendments to have a material impact on our consolidated financial statements.

In November 2015, the FASB i

ssued amendments to update the current guidance on the balance sheet classification of deferred taxes which is presented in ASC Topic 740 (Income Taxes). The purpose of the amendments is to simplify the presentation of deferred tax assets. This guidance requires deferred tax assets and liabilities, along with related valuation allowances, to be classified as noncurrent on the balance sheet. As a result, each tax jurisdiction will now only have one net noncurrent deferred tax asset or liability. The new guidance does not change the existing requirement that prohibits offsetting deferred tax liabilities from one jurisdiction against deferred tax assets of another jurisdiction. The amendments are effective for us as of January 1, 2017. Early application is permitted. We currently plan to elect early application of this guidance effective January 1, 2016. We do not expect the implementation of these amendments to have a material impact on our consolidated financial statements.

In September 2015, the FASB issued amendments to update the current guidance on accounting for measurement period adjustments in a business combination which is presented in ASC Topic 805 (Business Combinations). This guidance requires an entity to recognize adjustments to provisional amounts that are identified during the measurement period in the reporting period in which the adjustment amounts are determined; record, in the same period's financial statements, the effect on earnings of changes in depreciation, amortization, or other income effects, if any, as a result of the change to the provisional amounts, calculated as if the accounting had been completed at the acquisition date; and present separately on the face of the income statement or disclose in the notes the portion of the amount recorded in current-period earnings by line item that would have been recorded in previous reporting periods if the adjustment to the provisional amounts had been recognized as of the acquisition date. The amendments are effective for us as of January 1, 2016, with early application permitted for financial statements that have not been issued. We do not expect the implementation of these amendments to have a material impact on our consolidated financial statements.

In July 2015, the FASB issued amendments to update the current guidance on the subsequent measurement of inventory, which is presented in ASC Topic 330 (Inventory). The purpose of the amendments is to simplify the subsequent measurement of inventory and reduce the number of potential outcomes. It applies to all inventory other than inventory measured using last-in, first-out or the retail inventory method. Current guidance requires an entity to measure inventory at the lower of cost or market. Market could be replacement cost, net realizable value, or net realizable value less a normal profit margin. The updated guidance amends this to require that an entity measure inventory within the scope of the updated guidance at the lower of cost and net realizable value. Net realizable value is the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The amendments are effective for us as of January 1, 2017. We do not expect the implementation of these amendments to have a material impact on our consolidated financial statements.

In May 2014, the FASB issued new guidance on the recognition of revenue from contracts with customers. This guidance is presented in ASC Topic 606 (Revenue from Contracts with Customers). This new guidance will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective. Companies can use either the retrospective or cumulative effect transition method. In August 2015, the FASB deferred the effective date of this new guidance for one additional year. As a result, this new guidance is effective for us on January 1, 2018. Early application is only permitted as of the prior effective date, which in our case would be as of January 1, 2017. We have not yet selected a transition method and we are still evaluating the effect that this guidance will have on our consolidated financial statements and related disclosures.