Mocon (MOCO) 10-K 28 Mar 14 2013 FY Annual report Financial data

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 24, 2014	Jun. 30, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'MOCON INC	'	'
Document Type	'10-K	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Common Stock, Shares Outstanding	'	5,650,109	'
Entity Public Float	'	'	$70,385,288
Amendment Flag	'false	'	'
Entity Central Index Key	'0000067279	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Entity Filer Category	'Accelerated Filer	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Document Period End Date	31-Dec-13	'	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Current assets:	'	'
Cash and cash equivalents	$4,132,953	$2,415,416
Marketable securities, current	205,000	5,495,556
Trade accounts receivable, less allowance for doubtful accounts of $315,417 in 2013 and $303,839 in 2012	12,335,124	10,407,649
Other receivables	273,405	244,081
Inventories	7,470,697	6,344,982
Prepaid income taxes	595,898	279,964
Prepaid expenses, other	1,126,582	799,124
Deferred income taxes	1,429,794	926,081
Total current assets	27,569,453	26,912,853
Marketable securities, noncurrent	'	210,440
Property, plant, and equipment, net	5,726,754	5,350,310
Goodwill	9,034,479	8,729,438
Investment in affiliated company	3,441,500	3,303,750
Intangible assets, net	12,718,203	12,381,614
Other assets	213,279	308,996
Deferred income taxes	'	22,370
Total assets	58,703,668	57,219,771
Current liabilities:	'	'
Current maturities of long-term notes payable	2,697,678	2,566,154
Revolving lines of credit	4,263,821	5,327,515
Accounts payable	3,864,355	2,893,225
Compensation and related expenses	3,752,542	3,510,272
Other accrued expenses	781,151	868,199
Accrued product warranties	335,533	240,621
Accrued income taxes	'	36,139
Dividends payable	619,322	579,386
Deferred revenue	620,428	472,185
Total current liabilities	16,934,830	16,493,696
Notes payable	1,306,849	3,926,863
Obligations to former employees	77,334	76,161
Deferred income taxes	2,611,491	2,576,396
Accrued income taxes	304,424	265,207
Total noncurrent liabilities	4,300,098	6,844,627
Total liabilities	21,234,928	23,338,323
Commitments and contingencies (Note 8)	'	'
Stockholders’ equity:	'	'
Capital stock – undesignated. Authorized 3,000,000 shares; none issued and outstanding in 2013 and 2012	'	'
Common stock – $0.10 par value. Authorized 22,000,000 shares; issued and outstanding 5,630,197 shares in 2013 and 5,517,966 shares in 2012	563,020	551,797
Additional paid-in capital	5,063,627	3,738,968
Retained earnings	31,229,068	30,217,977
Accumulated other comprehensive income (loss)	613,025	-627,294
Total stockholders’ equity	37,468,740	33,881,448
Total liabilities and stockholders' equity	$58,703,668	$57,219,771

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parentheticals) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Trade accounts receivable, allowance for doubtful accounts (in Dollars)	$315,417	$303,839
Capital stock, authorized shares	3,000,000	3,000,000
Capital stock, shares issued	0	0
Capital stock, shares outstanding	0	0
Common stock, par value (in Dollars per share)	$0.10	$0.10
Common stock, authorized	22,000,000	22,000,000
Common stock, shares issued	5,630,197	5,517,966
Common stock, shares outstanding	5,630,197	5,517,966

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Sales:	'	'	'
Products	$53,974,024	$47,054,868	$34,383,432
Consulting services	3,134,207	2,885,657	2,977,435
Total sales	57,108,231	49,940,525	37,360,867
Cost of sales:	'	'	'
Products	23,972,368	20,893,294	12,284,206
Consulting services	1,866,733	1,713,314	1,608,364
Total cost of sales	25,839,101	22,606,608	13,892,570
Gross profit	31,269,130	27,333,917	23,468,297
Selling, general and administrative expenses	22,454,090	20,338,754	12,941,350
Research and development expenses	4,031,537	3,635,553	2,402,566
Operating income	4,783,503	3,359,610	8,124,381
Other income (expense), net	-359,163	20,512	79,599
Income before income taxes	4,424,340	3,380,122	8,203,980
Income taxes	963,417	1,378,148	2,753,062
Net income	$3,460,923	$2,001,974	$5,450,918
Net income per common share:	'	'	'
Basic (in Dollars per share)	$0.62	$0.37	$1.02
Diluted (in Dollars per share)	$0.61	$0.35	$0.98
Weighted average common shares outstanding:	'	'	'
Basic (in Shares)	5,544,722	5,477,131	5,342,900
Diluted (in Shares)	5,639,667	5,671,412	5,572,646
Dividends declared per common share (in Dollars per share)	$0.44	$0.42	$0.40

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net income	$3,460,923	$2,001,974	$5,450,918
Other comprehensive income (loss):	'	'	'
Cumulative translation adjustment	1,240,319	-37,263	-328,935
Comprehensive income	$4,701,242	$1,964,711	$5,121,983

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2010	$526,564	$922,272	$27,220,871	($261,096)	$28,408,611
Balance (in Shares) at Dec. 31, 2010	5,265,636	'	'	'	'
Stock options exercised, net of surrendered shares	17,317	1,243,281	'	'	1,260,598
Stock options exercised, net of surrendered shares (in Shares)	173,174	'	'	'	'
Dividends declared	'	'	-2,148,384	'	-2,148,384
Stock-based compensation expense	'	388,904	'	'	388,904
Tax benefit on stock plans	'	208,067	'	'	208,067
Net income	'	'	5,450,918	'	5,450,918
Cumulative translation adjustment	'	'	'	-328,935	-328,935
Balance at Dec. 31, 2011	543,881	2,762,524	30,523,405	-590,031	33,239,779
Balance (in Shares) at Dec. 31, 2011	5,438,810	'	'	'	'
Stock options exercised, net of surrendered shares	7,916	413,764	'	'	421,680
Stock options exercised, net of surrendered shares (in Shares)	79,156	'	'	'	'
Dividends declared	'	'	-2,307,402	'	-2,307,402
Stock-based compensation expense	'	464,470	'	'	464,470
Tax benefit on stock plans	'	98,210	'	'	98,210
Net income	'	'	2,001,974	'	2,001,974
Cumulative translation adjustment	'	'	'	-37,263	-37,263
Balance at Dec. 31, 2012	551,797	3,738,968	30,217,977	-627,294	33,881,448
Balance (in Shares) at Dec. 31, 2012	5,517,966	'	'	'	5,517,966
Stock options exercised, net of surrendered shares	11,223	760,641	'	'	771,864
Stock options exercised, net of surrendered shares (in Shares)	112,231	'	'	'	'
Dividends declared	'	'	-2,449,832	'	-2,449,832
Stock-based compensation expense	'	512,254	'	'	512,254
Tax benefit on stock plans	'	51,764	'	'	51,764
Net income	'	'	3,460,923	'	3,460,923
Cumulative translation adjustment	'	'	'	1,240,319	1,240,319
Balance at Dec. 31, 2013	$563,020	$5,063,627	$31,229,068	$613,025	$37,468,740
Balance (in Shares) at Dec. 31, 2013	5,630,197	'	'	'	5,630,197

Consolidated_Statements_of_Sto1

Consolidated Statements of Stockholders' Equity (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Dividends declared per share	$0.44	$0.42	$0.40
Common Stock [Member]	'	'	'
Dividends declared per share	$0.44	$0.42	$0.40

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011
Cash flows from operating activities:	'	'	'	'	'
Net income	$3,460,923	'	$2,001,974	'	$5,450,918
Adjustments to reconcile net income to net cash provided by operating activities:	'	'	'	'	'
Stock-based compensation expense	512,254	'	464,670	'	388,904
Change in fair value of derivative instrument	26,233	'	-209,370	'	'
(Gain) loss on disposition of long-term assets	-64,143	'	-52,024	'	7,029
Depreciation and amortization	2,433,183	1,949,782	1,949,782	616,451	616,451
Deferred income taxes	-532,612	'	-549,049	'	-173,311
Excess tax benefit from employee stock plans	-51,764	'	-98,210	'	-208,067
Changes in operating assets and liabilities net of effects from purchase of Dansensor:	'	'	'	'	'
Trade accounts receivable	-1,677,987	'	-3,125,064	'	967,666
Other receivables	50,976	'	297,177	'	349,008
Inventories	-1,007,551	'	1,047,460	'	-356,138
Prepaid income taxes	-138,880	'	-158,081	'	159,341
Prepaid expenses	11,293	'	-271,079	'	-97,577
Accounts payable	291,814	'	693,916	'	63,000
Compensation and related expenses	165,884	'	-269,619	'	226,124
Other accrued expenses	-100,496	'	-24,624	'	74,854
Accrued product warranties	87,502	'	-55,160	'	-10,000
Accrued income taxes	-14,645	'	-365,304	'	513,614
Deferred revenue	143,690	'	-756,277	'	133,372
Net cash provided by operating activities	3,595,674	'	521,118	'	8,105,188
Cash flows from investing activities:	'	'	'	'	'
Purchases of marketable securities	'	'	-365,000	'	-5,841,312
Proceeds from maturities of marketable securities	5,500,996	'	4,763,333	'	1,182,707
Purchases of property, plant and equipment	-1,513,475	'	-1,637,653	'	-882,061
Payment for purchase of Dansensor, net of cash acquired	'	'	-12,764,429	'	'
Proceeds from sale of property and equipment	161,207	'	171,917	'	713
Cash paid for intangible assets	-950,577	'	-255,916	'	-230,163
Other	-3,069	'	-3,104	'	-2,769
Net cash provided by (used in) investing activities	3,195,082	'	-10,090,852	'	-5,772,885
Cash flows from financing activities:	'	'	'	'	'
Proceeds from the revolving line of credit	11,157,496	'	7,452,850	'	'
Payments on the revolving line of credit	-12,233,656	'	-2,200,000	'	'
Proceeds from term note payable	'	'	3,500,000	'	'
Payments on term notes payable and seller financed note payable	-2,490,456	'	-3,550,768	'	'
Payment of debt issuance costs	'	'	-45,118	'	'
Proceeds from the exercise of stock options	771,864	'	421,680	'	1,260,598
Excess tax benefit from employee stock plans	51,764	'	98,210	'	208,067
Dividends paid	-2,408,612	'	-2,271,896	'	-2,104,739
Net cash (used in) provided by financing activities	-5,151,600	'	3,404,958	'	-636,074
Effect of exchange rate changes on cash and cash equivalents	78,381	'	154,346	'	-225,631
Net increase (decrease) in cash and cash equivalents	1,717,537	'	-6,010,430	'	1,470,598
Cash and cash equivalents:	'	'	'	'	'
Beginning of year	2,415,416	'	8,425,846	'	6,955,248
End of year	4,132,953	2,415,416	2,415,416	8,425,846	8,425,846
Supplemental disclosures of cash flow information:	'	'	'	'	'
Cash paid during the year for income taxes	1,628,772	'	1,586,154	'	2,371,164
Cash paid during the year for interest	315,480	'	261,211	'	7,191
Supplemental schedule of noncash investing and financing activities:	'	'	'	'	'
Dividends accrued	619,322	579,386	579,386	579,386	579,386
Purchases of prepaid expenses, fixed assets and intangibles in accounts payable	620,412	'	188,800	'	923
Assets acquired under capital lease	'	'	57,379	'	'
Seller financed note payable for the acquisition of Dansensor	'	'	6,484,413	'	'
The Company purchased all of the common shares of Dansensor for $20,081,600 on April 2, 2012. The reconciliation of cash paid and liabilities assumed is as follows:	'	'	'	'	'
Fair value of assets acquired	'	'	26,938,817	'	'
Liabilities assumed	'	'	-6,857,217	'	'
Net acquired assets	'	'	20,081,600	'	'
Seller financed note payable	'	'	-6,484,413	'	'
Cash acquired	'	'	-832,758	'	'
Payment for purchase of Dansensor, net of cash acquired and seller financed note payable	'	'	$12,764,429	'	'

Note_1_Summary_of_Significant_

Note 1 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block]	'
	(1)  Summary of Significant Accounting Policies
	MOCON Inc. and its subsidiaries (collectively, the Company), develops, manufacturers and markets measurement, analytical, monitoring and consulting products for customers in the barrier packaging, food, pharmaceutical, consumer products, industrial hygiene, air quality monitoring, oil and gas exploration and other industries throughout the world. The Company’s 2012 acquisition of Dansensor A/S (Dansensor) expanded the Company’s offerings into the Modified Atmosphere Packaging (MAP) market world-wide. MAP technology enables food packagers in a variety of food service industries to provide an extended shelf life by altering the gas mixture within the packaged environment resulting in the elimination of chemical preservatives or stabilizers.
	The Company reports its operating segments in accordance with accounting standards codified in ASC 280, Segment Reporting. The Company has four operating segments which are combined into three reporting segments as follows: Permeation Products and Services (“Permeation”), Package Testing Products and Services (“Package Testing”), and Industrial Analyzer Products and Services and Other (“Industrial Analyzers and Other”).
	On April 2, 2012, the Company acquired all of the outstanding shares of Dansensor, a Danish company. Dansensor designs, manufactures, sells, and services quality control and assurance equipment for businesses that utilize modified atmosphere packaging. Dansensor also offers a complete range of gas mixers, analyzers, and leak detection equipment and sells its products world-wide. The acquisition significantly expanded the Company’s presence in Europe and particularly in MAP technology, a growing world-wide market. All of the assets and liabilities of Dansensor were recorded at their respective fair values and the Company’s consolidated results of operations as of December 31, 2012 include Dansensor’s operating results from April 2, 2012 through December 31, 2012. See additional disclosure regarding the business acquisition and pro forma operating results provided in Note 2.
	The following is a summary of the significant accounting policies used in the preparation of the Company’s consolidated financial statements.
	(a)            Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.
	(b)           Foreign Currency Translation
	The financial statements for operations outside the United States are maintained in their local currencies. All assets and liabilities of the Company’s foreign subsidiaries are translated to United States dollars at period-end exchange rates, while revenue and expense accounts are translated at the average exchange rates during the period transactions occurred. Translation adjustments arising from the use of differing exchange rates are included in accumulated other comprehensive income or loss in stockholders’ equity. Gains and losses on foreign currency transactions are included in other income or loss.
	(c)            Cash and Cash Equivalents
	The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash equivalents consist of short-term investments which are readily convertible to cash.
	(d)           Marketable Securities
	Marketable securities at December 31, 2013 consist of municipal bonds. Marketable securities at December 31, 2012 consisted of municipal bonds and certificates of deposit. The Company classifies its marketable securities as held-to-maturity due to its ability and intent to hold these securities until maturity or the call date as the case may be. Held-to-maturity securities are recorded at amortized cost, adjusted for the amortization or accretion of premiums or discounts. A decline in the market value of any held-to-maturity security below cost, that is deemed other than temporary, is charged to income, resulting in the establishment of a new cost basis for the security.
	(e)           Accounts Receivable
	Credit is granted to customers in the normal course of business. Receivables are recorded at original carrying value, which approximates fair value, less reserves for estimated uncollectible amounts and sales returns. The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors that management believes to be reasonable under the circumstances, including the current economic environment. When facts and circumstances dictate, the Company may need to adjust its estimates and assumptions.
	(f)            Inventories
	Inventories are stated at the lower of cost or market. Cost is determined by the first-in, first-out (FIFO) method, and market represents the lower of replacement cost or estimated net realizable value. The Company records an estimate for excess and obsolete inventory which is based on historical usage and sales history.
	(g)           Property, Plant and Equipment
	Property, plant and equipment are carried at cost. Depreciation and amortization are typically computed using the straight-line method. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to income as incurred and significant renewals and betterments are capitalized. The present value of capital lease obligations are classified as long-term debt and the related assets are included in property, plant and equipment. Amortization of equipment under capital leases is included in depreciation expense.
	(h)           Goodwill and Other Intangible Assets
	As of December 31, 2013 and 2012, the Company had recorded goodwill of $9.0 million and $8.7 million, respectively. The Company tests goodwill at least annually for impairment. Approximately $5.6 million of goodwill resulting from the Dansensor acquisition is recorded within the Company’s Package Testing segment. The Company completed its annual impairment tests of goodwill and concluded that no impairment existed as of December 31, 2013 and 2012.
	Intangible assets consist of developed technology, patents, trademarks and other intangibles. Developed technology, patents, trademarks and other intangibles are carried at cost less accumulated amortization. Costs incurred in connection with applications for new patents are deferred until a final determination, with respect to the application, is made by appropriate regulatory agencies. Costs of patents abandoned are charged to income in the period of abandonment. Patent costs are amortized over the lesser of 17 years or their estimated useful lives using the straight-line method. Trademarks, trade names and other intangibles are amortized over three to five years.
	(i)            Software Development Costs
	The Company capitalizes certain software development costs related to software to be sold or otherwise marketed. Capitalized software development costs consist primarily of purchased materials and services. Software development costs are expensed as incurred until technological feasibility has been established, at which time future costs incurred are capitalized until the product is available for general release to the public. Based on the Company’s product development process, technological feasibility is generally established once product and detailed program designs have been completed, uncertainties related to high-risk development issues have been resolved through coding and testing, and the Company has established that the necessary skills, hardware, and software technology are available for production of the product. Once a software product is available for general release to the public, capitalized development costs associated with that product will begin to be amortized to cost of sales over the product’s estimated economic life, using the greater of straight-line or a method that results in cost recognition in future periods that is consistent with the anticipated timing of product revenue recognition.
	The Company’s capitalized software development costs are subject to an ongoing assessment of recoverability, which is impacted by estimates and assumptions of future revenues and expenses for these software products, as well as other factors such as changes in product technologies. Any portion of unamortized capitalized software development costs that are determined to be in excess of net realizable value will be expensed in the period such a determination is made. The Company capitalized $717,000 of software development costs during the year ended December 31, 2013. No software development costs were capitalized during the years ended December 31, 2012 or 2011.  As of December 31, 2013, the software development costs have not begun amortizing as the product was not yet available for general release to the public.
	(j)            Impairment of Long-Lived Assets and Long-Lived Assets to be Disposed Of
	The Company reviews its long-lived assets and certain identifiable intangibles for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Fair value is determined through various valuation techniques including, but not limited to, discounted cash flow models, quoted market values and third-party independent appraisals. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.
	(k)           Investment in Affiliated Company
	The Company has an equity investment in Luxcel Biosciences Limited, an early stage development company. The determination to account for this investment under the cost method was dependent upon a number of factors, including, but not limited to, the Company's share in the equity of the investee and the Company's ability to exercise significant influence over the operating and financial policies of the investee.
	The Company reviews its equity investment in affiliated company on a periodic basis for other-than-temporary decline in value. As of December 31, 2013 the Company has determined that it is not practicable to estimate the fair value of the investment in affiliated company. The Company performed an assessment of events or changes in circumstances that could indicate the carrying value of the investment in the affiliated company may not be recoverable and concluded that no impairment existed as of December 31, 2013.
	(l)           Derivative Financial Instruments
	During 2012, the Company entered into a foreign currency contract to mitigate the currency risk on its third party seller financed note payable. The derivative contract contains credit risk to the extent that the Company's bank counterparty may be unable to meet the terms of the agreements. The amount of such credit risk is generally limited to the unrealized gains, if any, in the contracts.
	The Company does not use derivatives for speculative or trading purposes. The Company has elected not to apply the hedge accounting guidance under the applicable authoritative guidance. As a result, gains or losses related to mark-to-market adjustments on the foreign currency contract are recognized as other income or expense in the income statement during the period in which the instrument is outstanding. The fair value of the foreign currency contract represented the amount we would have received or paid to terminate the contract at the reporting date and was recorded in other current assets or liabilities depending on whether the net amount was a gain or a loss.
	(m)         Warranty
	The Company records a liability for estimated warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting claim, new product introductions and other factors. In the event the Company determines that its current or future product repair and replacement costs exceed the Company estimates, an adjustment to these reserves would be charged to earnings in the period such determination is made.
	(n)           Use of Estimates
	The preparation of the consolidated financial statements, in accordance with generally accepted principles in the United States of America, requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant items subject to such estimates and assumptions include the useful lives of property, valuation of plant and equipment, valuation of investment in affiliated company, goodwill and intangible assets, valuation of derivatives, inventory reserves, allowance for doubtful accounts, uncertain tax positions and warranty reserves. Actual results could differ from those estimates.
	(o)           Income Taxes
	Deferred tax assets and liabilities are recognized for the estimated 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 in effect for the year 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 income in the period that includes the enactment date. A valuation allowance is provided to offset deferred tax assets if, based on the available evidence, it is more likely than not that some or all of the deferred tax asset will not be realized.
	In the ordinary course of business there is inherent uncertainty in quantifying our income tax positions.  We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances, and information available at the reporting dates.  For those tax positions where it is more likely than not that a tax benefit will be sustained, we have recorded the largest amount of tax benefit with a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information.  For those income tax positions where it is not more likely than not that a tax benefit will be sustained, no tax benefit has been recognized in the financial statements.  Potential accrued interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense.
	(p)           Fair Value of Financial Instruments
	The Company’s financial instruments are recorded in its consolidated balance sheets. The carrying amount for cash and cash equivalents, accounts receivable, revolving lines of credit, accounts payable and accrued liabilities approximates fair value due to the immediate or short-term maturity of these financial instruments. The fair value of the Company’s term note payable and seller financed secured note payable at December 31, 2013 approximates the carrying value because interest rates on the note payable approximate market interest rates. The fair values of investments in marketable securities are based on quoted market prices and are summarized in Note 3. See Note 14 for fair value disclosure of the investment in Luxcel and Note 17 for fair value disclosure of derivative instruments.
	(q)           Revenue Recognition
	The Company recognizes revenue when it is realized or realizable and earned. The Company considers revenue realized or realizable when persuasive evidence of an arrangement exists, the product has been shipped or the services have been provided to the customer, title and risk of loss of products has passed to the customer, the sales price is fixed or determinable, and collectability is reasonably assured. The Company’s terms are generally FOB shipping point with no right of return, except in rare cases, and customer acceptance of its products is not required. The revenue recognition policy does not differ among the various product lines, the marketing venues, or various geographic destinations. The Company does not have distributors who stock its equipment. The Company does not offer rebates, price protection, or other similar incentives, and discounts when offered are recorded as a reduction in revenue.
	Revenue for preventive maintenance agreements is recognized on a per visit basis and extended warranties on a straight-line basis over the life of the contracts. Unearned revenue related to these contracts is recorded in current liabilities in the consolidated balance sheets.
	The Company periodically has shipments of products to customers in which revenue is recognized under the accounting guidance related to multiple element arrangements. The Company allocates the overall arrangement fee to each element (both delivered and undelivered items) based on their relative selling price, as demonstrated by vendor-specific evidence (VSOE) or third-party evidence (TPE). Where VSOE or TPE is not available, revenue is allocated using an estimated selling price.
	Shipping and handling fees billed to customers are reported within sales in the consolidated statements of income, and the related costs are included in cost of sales in the consolidated statements of income.
	(r)           Advertising Costs
	The Company incurs advertising costs associated with trade shows, print advertising and brochures. Such costs are charged to expense as incurred. Advertising expense was approximately $831,000, $817,000 and $567,000 in 2013, 2012 and 2011, respectively.
	(s)           Research and Development Costs
	Research and development expenditures relate to the development of new product hardware and software and enhancements to existing products. All such costs are expensed as incurred.
	(t)           Net Income Per Common Share
	Basic net income per common share is computed by dividing net income by the weighted average of common shares outstanding during the year. Diluted net income per share is computed by dividing net income by the weighted average of common and potential dilutive common shares outstanding during the year.
	(u)          Stock-Based Compensation
	Under ASC 718, the Company recognizes compensation expense on a straight-line basis over the vesting period for all stock-based awards. Under the provisions of ASC 718, the Company recognizes stock-based compensation net of an estimated forfeiture rate, resulting in the recognition of compensation cost for only those shares expected to vest. See Note 10 for additional information on stock-based compensation.

Note_2_Business_Acquisition

Note 2 - Business Acquisition	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Business Combination Disclosure [Text Block]	'
	(2)   Business Acquisition
	On April 2, 2012, the Company purchased all of the issued and outstanding shares of Dansensor pursuant to a Share Purchase Agreement (SPA) which the Company entered into with the former parent company of Dansensor, PBI Holding A/S (PBI Holding) on March 9, 2012. Under the terms of the SPA, the Company acquired Dansensor for approximately $19.2 million, net of cash acquired. Approximately $13.6 million of the purchase price was paid in cash at closing. The balance of the purchase price was paid through the issuance of the Seller Note as is more fully described in Note 16.
	The acquisition has been accounted for under the acquisition method of accounting in accordance with ASC Topic 805, Business Combinations. Under the acquisition method of accounting, the total purchase price is allocated to the net tangible and intangible assets acquired, based on their estimated fair values. The total purchase price was allocated to the net assets acquired based upon their estimated fair values as of the close of business on April 2, 2012 as set forth below.
	The purchase price allocation for the acquisition is as follows:
	Cash and cash equivalents	$	832,758
	Trade accounts receivable, net		3,348,142
	Other receivables		470,135
	Inventories		2,943,855
	Property, plant and equipment		1,376,296
	Other assets		117,464
	Intangible assets		12,210,330
	Identifiable assets acquired		21,298,980
	Accounts payable		744,714
	Other accrued expenses		2,533,742
	Deferred income tax-current		509,744
	Deferred income tax-long-term		3,069,017
	Liabilities assumed		6,857,217
	Net identifiable assets acquired		14,441,763
	Goodwill		5,639,837
	Purchase price	$	20,081,600
	The allocation of the purchase price resulted in the recognition of the following intangible assets:
		Amount			Weighted
					Average Life -
					Years
	Trademark/trade name	$	3,819,090			20
	Developed technology		7,512,670			9
	Customer relationships		878,570			9
		$	12,210,330
	The fair value of the identified intangible assets was estimated using an income approach. Under the income approach, an intangible asset’s fair value is equal to the present value of future economic benefits to be derived from ownership of the asset. Indications of value are developed by discounting future net cash flows to their present value at market-based rates of return. The goodwill recognized as a result of the Dansensor acquisition is primarily attributable to the value of the workforce, corporate synergies, as well as unidentifiable intangible assets.
	None of the goodwill recognized is expected to be deductible for income tax purposes. The useful life of the intangible assets for amortization purposes was determined based on management’s best estimate of the expected cash flows used to measure the fair value of the intangible assets, adjusted as appropriate for the entity-specific factors including legal, regulatory, contractual, competitive, economic or other factors that may limit the useful life of intangible assets.
	The actual Dansensor net sales and net loss, which is defined as gross profit less costs of operations such as selling, general and administrative and research and development expenses, less income tax expense and costs related to the acquisition, is included in the Company’s consolidated statements of income for the year ended December 31, 2012. Dansensor’s actual results of operations for the nine month period April 2, 2012 through December 31, 2012, net of intercompany sales, is disclosed in the table below. The supplemental unaudited pro forma net sales and net income of the combined entity, including U.S. GAAP conversion adjustments, had the acquisition been completed as of the earliest period presented are as follows:
		Net Sales			Net			Basic
					Income (Loss)			Earnings
								per Share
	Dansensor results of operations since acquisition date (April 2, 2012 – December 31, 2012)	$	12,971,493		$	(1,177,354	)	$	--
	Supplemental pro forma combined results of operations (unaudited):
	Three months ended December 31, 2011		15,134,705			1,353,285			0.25
	Fiscal year ended December 31, 2012		54,814,162			2,086,563			0.38
	Fiscal year ended December 31, 2011		57,605,949			5,519,353			1.03
	Material items included in the supplemental unaudited pro forma disclosures above are as follows:
		Three months Ended			Fiscal Year Ended			Fiscal Year Ended
		31-Dec-11			31-Dec-12			31-Dec-11
	Amortization of intangibles	$	277,540		$	278,338		$	1,094,301
	Interest expense		79,027			106,237			377,071
	Income tax effect of adjustments		(106,970	)		(115,373	)		(470,839	)
		$	249,597		$	269,202		$	1,000,533
	A nonrecurring item related to an inventory fair value adjustment of $865,000 is included in the supplemental unaudited pro forma combined results of operations for the year ended December 31, 2012. The Company has incurred approximately $848,000 in acquisition related costs since inception of the acquisition. Approximately $812,000 of these costs were incurred during the year ended December 31, 2012 and are recorded as selling, general and administrative expenses in the consolidated statements of income as of December 31, 2012.
	These pro forma condensed consolidated financial results have been prepared for illustrative purposes only and do not purport to be indicative of the results of operations that actually would have resulted had the acquisition occurred on the first day of the earliest period presented, or of future results of the consolidated entities. The pro forma consolidated financial information does not reflect any operating efficiencies and cost savings that may be realized from the integration of the acquisition.

Note_3_Marketable_Securities

Note 3 - Marketable Securities	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	'
	(3) Marketable Securities
	The amortized cost and fair value for held-to-maturity securities by major security type at December 31, 2013 and 2012 were as follows:
		2013				2012
		Amortized		Fair		Amortized		Fair
		Cost		Value		Cost		Value
	Held-to-maturity:
	Municipal bonds	$	205,000	$	205,000	$	2,903,003	$	2,908,030
	Certificates of deposit		-		-		2,802,993		2,811,677
		$	205,000	$	205,000	$	5,705,996	$	5,719,707
	The fair value of the marketable securities above was determined using Level 2 inputs as discussed in Note 17. There were no gross realized gains or losses for the years ended December 31, 2013, 2012 and 2011.
	Maturities of investment securities at December 31, 2013 and 2012 were as follows:
		2013				2012
		Amortized		Fair		Amortized		Fair
		Cost		Value		Cost		Value
	Due within one year	$	205,000	$	205,000	$	5,495,556	$	5,505,095
	After one year through five years		-		-		210,440		214,612
		$	205,000	$	205,000	$	5,705,996	$	5,719,707

Note_4_Inventories

Note 4 - Inventories	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Inventory Disclosure [Text Block]	'
	(4)           Inventories
	The major components of inventories at December 31, 2013 and 2012 were as follows:
		2013		2012
	Finished products	$	1,638,997	$	1,554,203
	Work-in-process		1,934,493		1,599,761
	Raw materials		3,897,207		3,191,018
		$	7,470,697	$	6,344,982

Note_5_Property_Plant_and_Equi

Note 5 - Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment Disclosure [Text Block]	'
	(5)           Property, Plant and Equipment
	Property, plant and equipment at December 31, 2013 and 2012 consisted of the following:
			2013			2012			Estimated
									useful lives
									(in years)
	Land		$	200,000		$	200,000			—
	Buildings			785,824			759,281			27
	Machinery and equipment			4,957,080			5,682,609		3	to	10
	Office equipment			4,759,331			2,880,938		2	to	15
	Leasehold improvements			2,268,143			2,226,065		1	to	15
	Vehicles			567,652			477,445		3	to	5
	Total property, plant and equipment			13,538,030			12,226,338
	Less accumulated depreciation			(7,811,276	)		(6,876,028	)
		Net property, plant and equipment	$	5,726,754		$	5,350,310
	Depreciation of property, plant and equipment was $1,208,878, $1,042,606 and $530,326 for the years ended December 31, 2013, 2012 and 2011, respectively.

Note_6_Goodwill_and_Other_Inta

Note 6 - Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Goodwill and Intangible Assets Disclosure [Text Block]	'
	(6)           Goodwill and Other Intangible Assets
	Goodwill
	As of December 31, 2013 and 2012, goodwill amounted to $9,034,479 and $8,729,438, respectively. See Note 2 for discussion of the valuation techniques used to assess the fair value of the intangible assets at the acquisition date. The Company tests goodwill for impairment annually at the reporting unit level using a fair value approach, in accordance with the provisions of ASC 350, Goodwill and Other. The Company completed its annual impairment tests during the fourth quarter 2013 and 2012 and determined there was no impairment.
	During April 2012, the Company acquired Dansensor which resulted in goodwill of approximately $5.6 million (see Note 2). Additionally, during fiscal 2012, the Company reorganized its business which thereby changed the reporting segments. To properly reflect the change in goodwill by reporting segment, goodwill has been allocated to the reporting segments as though the reorganization had occurred at the beginning of the year. The changes in the carrying amount of goodwill for the year ended December 31, 2013 is as follows:
		Package			Permeation			Industrial		Total
		Testing						Analyzers & Other
	Balance as of December 31, 2011	$	366,655		$	2,142,661		$	609,930	$	3,119,246
	Acquisition		5,639,837			-			-		5,639,837
	Foreign currency translation		(66,055	)		36,410			-		(29,645	)
	Balance as of December 31, 2012		5,940,437			2,179,071			609,930		8,729,438
	Foreign currency translation		234,933			70,108			-		305,041
	Balance as of December 31, 2013	$	6,175,370		$	2,249,179		$	609,930	$	9,034,479
	Other Intangible Assets
	Other intangible assets (all of which are being amortized except projects in process) are as follows:
		As of December 31, 2013
		Cost			Accumulated			Net
					Amortization
	Patents	$	1,624,590		$	(408,656	)	$	1,215,934
	Trademarks and trade names		4,121,170			(495,897	)		3,625,273
	Developed technology		7,730,550			(1,503,163	)		6,227,387
	Customer relationships		904,050			(175,787	)		728,263
	Internally developed software		716,800			-			716,800
	Other intangibles		245,118			(40,572	)		204,546
		$	15,342,278		$	(2,624,075	)	$	12,718,203
		As of December 31, 2012
		Cost			Accumulated			Net
					Amortization
	Patents	$	1,485,164		$	(428,409	)	$	1,056,755
	Trademarks and trade names		4,295,181			(608,861	)		3,686,320
	Developed technology		7,424,680			(618,723	)		6,805,957
	Customer relationships		868,280			(72,357	)		795,923
	Other intangibles		125,118			(88,459	)		36,659
		$	14,198,423		$	(1,816,809	)	$	12,381,614
	Amortization expense was $1,224,305, $907,176 and $86,125 in 2013, 2012 and 2011, respectively.
	Estimated amortization expense for the fiscal years 2014 to 2018, and 2019 and thereafter is $1,281,986, $1,277,334, $1,260,735, $1,228,410, $1,197,641 and $5,081,524, respectively.

Note_7_Warranty

Note 7 - Warranty	12 Months Ended
	Dec. 31, 2013
Product Warranties Disclosures [Abstract]	'
Product Warranty Disclosure [Text Block]	'
	(7)           Warranty
	The Company provides a warranty for most of its products. Warranties are for periods ranging from ninety days to one year, and cover parts and labor for non-maintenance repairs, at the Company location. Operator abuse, improper use, alteration, damage resulting from accident, or failure to follow manufacturer’s directions are excluded from warranty coverage.
	Warranty expense is accrued at the time of sale based on historical claims experience. Warranty reserves are also accrued for special rework campaigns for known major product modifications. The Company also offers extended warranty service contracts for select products when the factory warranty period expires.
	Warranty provisions and claims for the years ended December 31, 2013, 2012 and 2011 were as follows:
	Description		Balance at Beginning		Acquired		Warranty Provisions		Warranty		Balance at
			of Year		provision - Dansensor				Claims		End of Year
	Year ended December 31, 2013:
		Allowance for product warranties	$	240,621		—		442,097		347,185	$	335,533
	Year ended December 31, 2012:
		Allowance for product warranties	$	205,506		85,413		374,758		425,056	$	240,621
	Year ended December 31, 2011:
		Allowance for product warranties	$	217,819		—		227,112		239,425	$	205,506

Note_8_Commitments_and_Conting

Note 8 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies Disclosure [Text Block]	'
	(8)           Commitments and Contingencies
	(a)           Leases
	The Company leases its facilities and certain equipment pursuant to operating and capital leases. The facility leases expire at various times through October 2025 and require the Company to pay operating costs, including real estate taxes. Equipment under capital lease consists of service vehicles, net of accumulated depreciation totaling approximately $65,100 as of December 31, 2013.
	Rental expense for operating leases, including charges for operating costs, was $1,148,940, $1,071,798 and $629,405 in 2013, 2012 and 2011, respectively.
	The following is a schedule of future minimum lease payments, excluding charges for operating costs, as of December 31, 2013:
	Year Ending December 31:
		Operating		Capital
		Leases		Leases
	2014	$	1,235,865	$	15,418
	2015		742,882		16,408
	2016		676,990		15,462
	2017		673,642		3,034
	2018		625,855		-
	2019 and thereafter		3,430,924		-
		$	7,386,158		50,322
	Less amounts representing interest				2,396
	Present value of minimum lease commitments			$	47,926
	(b)           Severance Agreements
	The Company has a severance agreement with its four executive officers and two of its divisional officers which provides for the payment to the officer of a lump sum amount upon the occurrence of certain termination events.
	(c)           Inventory Purchase Obligations
	At December 31, 2013, the Company had approximately $3.8 million of purchase order commitments to suppliers of the Company for delivery of inventory primarily during 2014.

Note_9_Income_Taxes

Note 9 - Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Tax Disclosure [Text Block]	'
	(9)           Income Taxes
	Income before income taxes was as follows:
			2013				2012				2011
	Income (loss) before income taxes:
	Domestic		$	3,072,594			$	3,931,365			$	6,405,112
	Foreign			1,351,746				(551,243	)			1,798,868
	Total		$	4,424,340			$	3,380,122			$	8,203,980
	The provision (benefit) for income taxes consists of the following:
			2013				2012				2011
	Current tax expense:
	Federal		$	806,932			$	1,420,599			$	1,934,352
	State			79,728				13,437				173,360
	Foreign			524,761				54,314				552,292
	Total current expense			1,411,421				1,488,350				2,660,004
	Deferred tax expense (benefit):
	Federal			18,512				(72,727	)			97,588
	State			(2,591	)			(3,542	)			4,580
	Foreign			(463,925	)			(33,933	)			(9,110	)
	Total deferred expense (benefit)			(448,004	)			(110,202	)			93,058
	Provision for income taxes		$	963,417			$	1,378,148			$	2,753,062
	The effective income tax rate varies from the federal statutory tax rate for the following reasons:
					Percentage of pretax income
					for years ended December 31,
					2013				2012				2011
	Tax at statutory federal income tax rate					34	%			34	%			34	%
	Increases (reductions) in taxes resulting from:
		State income taxes, net of federal benefit				1.2				1.2				1.5
		Change in valuation allowance				(0.3	)			-				0.6
		Domestic manufacturing deduction				(2.3	)			(3.8	)			(2.1	)
		Capitalized acquisition costs				0				3.6				-
		Effect of foreign operations				(8.5	)			5.9				(0.7	)
		Foreign dividend income				0				(1.5	)			-
		Tax-exempt interest				0				(0.4	)			(0.2	)
		Changes in unrecognized tax benefits				0.9				(0.3	)			0.3
		Stock option compensation				1.8				2.5				0.3
		Research credit				(5.7	)			-				(1.0	)
		Other				0.7				(0.4	)			0.9
			Effective income tax rate			21.8	%			40.8	%			33.6	%
	The tax effect of significant temporary differences representing deferred tax assets and liabilities at December 31, 2013 and 2012 were as follows:
			2013				2012
	Deferred tax assets:
	Allowance for doubtful accounts		$	59,404			$	34,580
	Inventory items			455,455				371,089
	Reserves and accruals			731,570				502,141
	Compensation expense - stock options			184,635				177,717
	Foreign tax credit carryover			325,127				329,314
	Intangibles			20,102				29,734
	R&D credit carryover			57,772				-
	Other			273,360				319,137
	Subtotal			2,107,425				1,763,712
	Less: Valuation allowance			(108,172	)			(76,504	)
	Total deferred tax assets			1,999,253				1,687,208
	Deferred tax liabilities:
	Fixed assets			(815,555	)			(506,478	)
	Intangibles			(2,365,395	)			(2,808,675	)
	Total deferred tax liabilities			(3,180,950	)			(3,315,153	)
	Net deferred tax liability		$	(1,181,697	)		$	(1,627,945	)
	As of December 31, 2013, the Company has determined that establishing a valuation allowance against certain of the deferred tax assets is required since it is more likely than not that the tax benefits of $57,772 from the carry-forward of state R&D tax credits and the tax benefits of $50,400 from net operating losses in Spain will not be realized through generating future taxable income. However, the Company believes it is more likely than not that the remainder of its deferred tax assets at December 31, 2013 will be realized primarily through generation of future taxable income.
	In each of March 2012 and January 2011, the Company’s German subsidiary repatriated to the Company 2.5 million euros (approximately $3.3 million) in the form of dividend distributions. As of December 31, 2013, there was approximately $3 million of accumulated undistributed earnings remaining at the subsidiary. No deferred tax liability has been provided on the remaining foreign earnings. If they were remitted to the Company, applicable U.S. Federal and foreign withholding taxes would be partially offset by available foreign tax credits.
	A reconciliation of the beginning and ending amount of gross unrecognized tax benefits is as follows:
			2013				2012
	Balance at January 1		$	233,000			$	244,000
	Additions based on tax positions related to the current year			20,000				5,000
Additions based on tax positions related to the prior year			11,000				—
Reductions due to closing of statute of limitations			—				(14,000	)
Reductions based on tax positions related to the prior year			—				(2,000	)
Balance at December 31		$	264,000			$	233,000
Included in the balance of total unrecognized tax benefits at December 31, 2013 are potential benefits of $208,000 that if recognized would affect the effective tax rate on income before income taxes. The difference between this amount and the corresponding amount of gross unrecognized tax benefits related primarily to the deferred federal benefit for state income tax related amounts.
The Company does not anticipate that the total amount of unrecognized tax benefits will change significantly in the next twelve months.
The Company recognizes accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. Total accrued interest and penalties amounted to $40,000 and $33,000 on a gross basis at December 31, 2013 and 2012, respectively, and are excluded from the reconciliation of unrecognized tax benefits presented above.
The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction, several state jurisdictions, China, France, Germany, Denmark, Italy, Luxembourg, Spain and the Netherlands. With limited exceptions, the Company is no longer subject to income tax examinations by taxing authorities for taxable years before 2010. In early 2013, the State of Minnesota completed its examination of the four years 2008 through 2011 which resulted in an immaterial adjustment.

Note_10_StockBased_Compensatio

Note 10 - Stock-Based Compensation	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	(10)        Stock-Based Compensation
	As of December 31, 2013, the Company has reserved 281,089 shares of common stock for options and other stock-based incentive awards that are still available for grant under the Company’s 2006 stock incentive plan, and 622,300 shares for options that have been granted under either the Company’s 2006 stock incentive plan or 1998 stock option plan but have not yet been exercised. The Company issues new shares of common stock upon exercise of stock options.
	Under the Company’s stock-based incentive plans, option exercise prices are 100% of the market value of the common stock at the date of grant, except if incentive options granted under the 1998 and 2006 plans were granted to persons owning more than 10% of the Company’s stock, in which case the option price would be 110% of the market value. Exercise periods are generally for seven to ten years. Certain of the plans allow for the granting of nonqualified stock options. Upon the exercise of these nonqualified options, the Company may realize a compensation deduction allowable for income tax purposes. The after-tax effect of these tax deductions is included in the accompanying consolidated financial statements as an addition to additional paid-in capital.
	Stock-based compensation expense is calculated and recognized primarily on a straight-line basis over the vesting periods of the related stock-based reward. The Company generally provides for the vesting of stock options in equal annual installments over a four -year period commencing on the one -year anniversary of the date of grant, or over a one -year period with 25% of the underlying shares vesting at the end of each three -month period following the grant date. Stock-based compensation expense recognized in the consolidated financial statements for 2013, 2012 and 2011 was as shown below:
			Years Ended December 31,
			2013				2012			2011
	Total cost of stock-based compensation		$	512,254			$	464,470		$	388,904
	Amount of income tax benefit recognized in earnings			(99,929	)			(77,009	)		(111,882	)
	Amount charged against net income		$	412,325			$	387,461		$	277,022
	The fair value of each option grant is estimated on the date of grant using the Black-Scholes option-pricing model (Black-Scholes). The Company uses historical data to estimate the expected price volatility, expected option life and expected forfeiture rate. The Company based its estimate of expected volatility for awards granted in 2013, 2012 and 2011 on daily historical trading data of its common stock for a period equivalent to the expected term of the award. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for the estimated life of the option. The Company estimated the expected term consistent with historical exercise and cancellation activity of its previous share-based grants with a seven-year contractual term. Forfeitures were based on historical experience. The dividend yield is calculated based upon the dividend payments made during the prior four quarters as a percent of the average stock price for that period. The following assumptions were used to estimate the fair value of options granted during 2013, 2012 and 2011 using the Black-Scholes model:
			2013				2012			2011
	Dividend yield			2.7	%			2.7	%		2.7	%
	Expected volatility			42	%			42	%		42	%
	Risk-free interest rate			1	%			1	%		1.1	%
	Expected lives (in years)			5.6				5.6			5.6
	Information regarding the Company’s stock option plans for 2011, 2012 and 2013 was as follows:
				Shares				Weighted			Weighted		Aggregate
								Average			Average		Intrinsic
								Exercise			Remaining		Value
								Price			Contractual
											Term
	Options outstanding, December 31, 2010				912,562			$	9.71			4.1	$	2,962,426
		Granted			132,900				16
		Exercised			(203,801	)			8.41
		Cancelled or expired			(11,875	)			9.08
	Options outstanding, December 31, 2011				829,786				11.05			4.1		4,108,291
		Granted			128,700				14.4
		Exercised			(108,624	)			8.56
		Cancelled or expired			(11,200	)			14.3
	Options outstanding, December 31, 2012				838,662				11.84			3.9		2,346,063
		Granted			10,000				14.16			6
		Exercised			(206,675	)			10.23
		Cancelled or expired			(19,687	)			14.12
	Options outstanding, December 31, 2013				622,300			$	12.34			3.7	$	2,174,673
	Options exercisable, December 31, 2013				543,075			$	11.99			3.5	$	2,084,949
	The weighted average grant date fair value based on the Black-Scholes model for options granted in 2013, 2012 and 2011 was $4.45, $4.18 and $4.60, respectively. The total intrinsic value of options exercised was $823,866, $794,345 and $1,341,057 during the years ended December 31, 2013, 2012 and 2011, respectively. The aggregate intrinsic values are based upon the closing price of our common stock on the last day of the respective fiscal year.
	A summary of the status of the Company’s unvested option shares as of December 31, 2013 is as follows:
				Number of				Weighted
				Shares				Average
								Grant Date
								Fair Value
	Unvested at December 31, 2012				209,925			$	4.04
		Options granted			10,000				4.45
		Options cancelled			(16,825	)			3.83
		Options vested			(123,875	)			4.14
	Unvested at December 31, 2013				79,225			$	3.98
	As of December 31, 2013, there was $315,401 of total unrecognized compensation cost related to unvested stock-based compensation granted under the Company’s plans. That cost is expected to be recognized over a weighted-average period of 1.7 years. The total fair value of option shares vested during the years 2013, 2012 and 2011 was $512,580, $464,470 and $388,904, respectively.
	In 2012, the Company introduced a Direct Stock Purchase Plan (DSPP) which allows employees to purchase shares of the Company’s common stock directly through payroll withholding. Employees buy stock through the plan at market prices on the date of purchase and are not required to pay a fee for the transaction. The plan also allows non-employees to purchase shares electronically or through the mail with no brokerage commission. The plan has a dividend reinvestment feature which is optional for all shareholders. There are no shares that are solely authorized to be issued from the DSPP, as all shares are purchased from the open market.

Note_11_Other_Income_Expense

Note 11 - Other Income (Expense)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Other Income and Other Expense Disclosure [Text Block]	'
	(11)        Other Income (Expense)
	Other income (expense), net for 2013, 2012 and 2011 was as follows:
		Years Ended December 31,
		2013			2012			2011
	Interest income	$	21,896		$	83,416		$	117,680
	Interest expense		(298,769	)		(308,389	)		-
	Foreign currency exchange gain (loss)		(83,139	)		242,564			(37,276	)
	Other		849			2,921			(805	)
	Total other income (expense)	$	(359,163	)	$	20,512		$	79,599

Note_12_Net_Income_per_Common_

Note 12 - Net Income per Common Share	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Earnings Per Share [Text Block]	'
	(12)         Net Income per Common Share
	The following table presents a reconciliation of the denominators used in the computation of net income per common share – basic and net income per common share – diluted for the years ended December 31, 2013, 2012 and 2011:
		Years Ended December 31,
		2013		2012		2011
	Weighted shares of common stock outstanding - basic		5,544,722		5,477,131		5,342,900
	Dilutive impact of share-based awards		94,945		194,281		229,746
	Weighted shares of common stock outstanding - diluted		5,639,667		5,671,412		5,572,646
	Outstanding stock options totaling 251,150 for the year ended December 31, 2013 and 125,400 options at December 31, 2012 were excluded from the net income per share calculation because the shares would be anti-dilutive. At December 31, 2011, there were no outstanding stock options that were deemed to be anti-dilutive because the market value of the Company’s common stock was equal to, or greater than, the exercise price of the currently outstanding options.

Note_13_Savings_and_Retirement

Note 13 - Savings and Retirement Plan	12 Months Ended
	Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]	'
Pension and Other Postretirement Benefits Disclosure [Text Block]	'
	(13)         Savings and Retirement Plan
	The Company has a 401(k) Savings and Retirement Plan covering its U.S. employees and several defined contribution pension plans covering certain employees outside of the U.S. The Company provides matching contributions in accordance with the plans. The Company’s contributions to these plans in 2013, 2012 and 2011 were approximately $886,000, $796,000 and $218,000, respectively.

Note_14_Investment_in_Affiliat

Note 14 - Investment in Affiliated Company	12 Months Ended
	Dec. 31, 2013
Investments in and Advances to Affiliates, Schedule of Investments [Abstract]	'
Investments in and Advances to Affiliates, Schedule of Investments [Text Block]	'
	(14)        Investment in Affiliated Company
	In January 2010, the Company acquired a minority equity ownership interest in Luxcel Biosciences Limited (Luxcel) based in Cork, Ireland. The investment of €2.5 million (approximately $3.6 million) amounted to a 16.9% equity interest in Luxcel. The Company has evaluated the cost versus equity method of accounting for its investment in Luxcel and determined that it does not have the ability to exercise significant influence over the operating and financial policies of Luxcel and, therefore, accounts for its investment on a cost basis. The Company elected not to exercise the warrants to purchase an additional 375,000 shares of Luxcel’s common stock by the January, 2013 deadline. This decision was based on management’s evaluation of the cash needs throughout the entire Company.
	Luxcel has developed phosphorescence-based sensors that enable rapid, high-throughput screening and detection of bacterial contamination of food samples, non-invasive analysis of gas in food, beverage and pharmaceutical packaging, and one of the most specific measures of drug toxicity and metabolism within pharmaceutical research and development.
	The investment in Luxcel is carried on our Consolidated Balance Sheet at the original purchase price, adjusted for currency fluctuations. The Company believes that it is not feasible to readily estimate the fair value of its investment in Luxcel. Information related to future cash flows of Luxcel is not readily available as the entity is a start-up research and development company and future cash flows are highly dependent on their ability to obtain additional funding, gain acceptance of its products in the marketplace, and obtain regulatory approvals. The Company performed its review of Luxcel at December 31, 2013 and determined that no triggering events had occurred which would indicate that there would be an other-than-temporary impairment of our investment.
	During September 2013, the Company paid $200,000 for two license and distribution agreements with Luxcel which grants the Company access to proprietary technology on an exclusive basis for a period of four years.  As of December 31, 2013, $200,000 has been recognized as a current obligation on the Consolidated Balance Sheet as a result of the Company contracting for future services to be provided by Luxcel. The terms of the agreement include upfront payments for each work order placed by the Company of which amounts paid are refundable if the work order is cancelled, excluding amounts incurred for work completed up to the cancellation date.  Total commitments for such work orders at the time of the signing of the agreement totaled $300,000, of which $100,000 had been paid as of December 31, 2013.
	As part of the relationship with Luxcel, we purchase sensors which accompany our instruments for sale to an end user and are required to pay a royalty to Luxcel on the sale of such instruments.

Note_15_Derivative_Instrument

Note 15 - Derivative Instrument	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities Disclosure [Text Block]	'
	(15)        Derivative Instrument
	As of December 31, 2013 and 2012, the Company has one foreign currency contract outstanding with a notional amount of 10.7 million and 20.7 million Danish krone (DKK) or $2.0 million and $3.7 million, respectively. The foreign currency contract was purchased to economically hedge the foreign currency fluctuation from the remeasurement of the third party seller financed note payable (Seller Note) which is denominated in DKK (Note 16). The foreign currency contract has various settlement dates that coincide with the Company’s Seller Note payment schedule. The term of the foreign currency contract coincides with the maturity of the Seller Note which is April 2, 2015. The fair value of the contract resulted in an asset of approximately $183,100 and $209,400 at December 31, 2013 and 2012. The change in the fair value of the contract totaling approximately ($27,000), $209,400 and $0 for the years ended December 31, 2013, 2012 and 2011 was recognized in other income (expense), the current portion of the receivable is recorded in other receivables, and the long-term portion is recorded in other assets as of December 31, 2013 and 2012.

Note_16_Debt

Note 16 - Debt	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Debt Disclosure [Text Block]	'
	(16)        Debt
	Long-term notes payable consists of the following:
		December 31,		December 31,
		2013		2012
	Note payable to bank, with interest at 3.46%, payable in monthly principal installments of $72,917 plus interest through March 28, 2016, collateralized by all the assets of the Company except Dansensor stock.	$	2,041,660	$	2,916,664
	Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual principal and interest payments totaling $891,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding stock of Dansensor.		1,914,941		3,517,067
	Capital leases (Note 8)		47,926		59,286
	Total long-term notes payable	$	4,004,527	$	6,493,017
	Less current portion of long-term notes payable		2,697,678		2,566,154
	Total long-term notes payable	$	1,306,849	$	3,926,863
	The Company has a $5.0 million secured revolving line of credit with a maturity date of March 28, 2016. Interest is charged monthly at one-month LIBOR plus 1.75 basis points which totaled 2.00% at December 31, 2013 and 2012. The line of credit is secured by the assets of the Company with the exception of the Dansensor stock. The Company had $4 million and $4.7 million outstanding on the line of credit at December 31, 2013 and 2012, respectively. Additionally, Dansensor has a DKK 10 million (approximately $1.8 million) available line of credit of which approximately $264,000 and $652,000 was outstanding as of December 31, 2013 and 2012. Outstanding borrowings are charged interest at a fixed rate of 4.35% per year.
	The Company is subject to various financial and restrictive covenants in the bank Credit Agreement, including maintaining certain financial ratios and limits on incurring additional indebtedness, making capital and lease expenditures and making share repurchases. The Company is in compliance with its debt covenants at December 31, 2013 and expects to remain in compliance through 2014.
	On June 28, 2012, the Company entered into the first amendment to the Seller Note (the Amendment). The Amendment called for two prepayments of DKK 6,500,000 (approximately $1.1 million) each, which were paid on June 29, 2012 and July 30, 2012. As a result of the prepayments, the maturity date of the Seller Note was revised to April 2, 2015 and the collateral securing the repayment of the Seller Note was changed from 100% to 65% of the common stock of Dansensor.
	The carrying value of the Seller Note is adjusted for foreign currency translation at each reporting period and the change in value is included in other income in the consolidated statements of income.
	As of December 31, 2013, the future minimum principal payments of the long-term notes payable for each fiscal year thereafter is as follows:
	2014	$2,697,678
	2015	997,588
	2016	306,378
	2017	2,883
	Total	$4,004,527

Note_17_Fair_Value_Measurement

Note 17 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value Disclosures [Text Block]	'
	(17)         Fair Value Measurements
	The Company determines the fair market value of its derivative contract based on the fair value hierarchy, described below, which requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. There are three levels within the fair value hierarchy that may be used to measure fair value:
	Level 1: Values based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical assets or liabilities.
	Level 2: Values based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, or model-based valuation techniques for which all significant assumptions are observable in the market.
	Level 3: Values generated from model-based techniques that use significant assumptions not observable in the market. These unobservable assumptions reflect our own estimates of assumptions that market participants would use in pricing the asset or liability. Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.
	The following table provides information on those assets that are measured at fair value on a recurring basis as of December 31, 2013 and 2012:
				Fair Value
				Measurements
				at the end of
				the Reporting
				Period Using
		Carrying value		Significant Other
				Observable Inputs
				(Level 2)
	Assets
	December 31, 2013:
	Foreign currency contract		$183,137		$183,137
	December 31, 2012:
	Foreign currency contract		$209,370		$209,370
	The fair value of the foreign currency contract is determined based on observable market transactions of spot currency rates and forward currency prices. The carrying values of cash and cash equivalents, accounts receivable, accounts payable, accrued liabilities, revolving lines of credit and current maturities of notes payable approximate fair value. The carrying value of long-term debt approximates fair value. See Note 3 for additional information on the fair value of the Company’s marketable securities.

Note_18_Business_Segments

Note 18 - Business Segments	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Segment Reporting Disclosure [Text Block]	'
	(18)        Business Segments
	The Company has four operating segments, structured by differences in products and services, that are regularly reviewed by the Company’s chief operating decision maker to make decisions about allocating resources and assessing segment performance. The segment performance is evaluated at segment operating income which is defined as gross profit less selling, general and administrative expenses and research and development expenses. General corporate expenses, including costs associated with various support functions such as human resources, information technology, finance and accounting, and general and administrative costs, are allocated to the reportable segments primarily on the basis of segment gross margin. The Company’s four operating segments have been aggregated into three reportable segments based on the authoritative guidance. The Company aggregated its Other Products and Services operating segment into the Industrial Analyzer Products and Services segment based on minimal business activity and materiality.
	The Permeation segment includes instruments and services that measure the rate at which various gases and vapors permeate through a variety of materials. The Package Testing segment provides customers with the ability to assess package performance, shelf-life, package improvement, cost reduction, sustainability and product safety using Modified Atmosphere Packaging and other technologies. The Industrial Analyzers and Other segment includes advanced gas analysis and monitoring instrumentation used in applications such as oil and gas exploration, beverage and specialty gas analysis, industrial hygiene and safety, food safety, environmental air monitoring and homeland security.
	The accounting policies of the reportable segments are the same as those described in Note 1. There were no intersegment sales for the years ended December 31, 2013, 2012 and 2011. The financial information provided for the Package Testing segment for the year ended December 31, 2012 includes a nonrecurring adjustment of $865,000 related to an inventory fair value purchase accounting adjustment and also includes nonrecurring acquisition related costs of approximately $812,000.
	Segment information for the years ended December 31, 2013, 2012 and 2011 are as follows:
				Package				Permeation			Industrial			Unallocated - Corporate		Consolidated
				Testing							Analyzers and
											Other
	December 31, 2013
		Sales		$	25,241,298			$	21,394,485		$	10,472,448		$	-	$	57,108,231
		Gross profit			11,918,969				13,438,304			5,911,857			-		31,269,130
		Income before income taxes			679,409				3,338,366			406,565			-		4,424,340
		Capital expenditures			666,597				970,510			167,064			-		1,804,171
		Depreciation and amortization			1,688,560				629,464			115,159			-		2,433,183
		Interest expense			298,769				-			-			-		298,769
		Intangible assets, net			10,986,034				1,656,093			76,076			-		12,718,203
	December 31, 2012
		Sales		$	19,682,513			$	21,235,611		$	9,022,401		$	-	$	49,940,525
		Gross profit			8,450,145				13,682,530			5,201,242			-		27,333,917
		Income before income taxes			(1,501,182	)			4,369,845			511,459			-		3,380,122
		Capital expenditures			800,553				842,957			221,695			-		1,865,205
		Depreciation and amortization			1,432,638				401,577			115,567			-		1,949,782
		Interest expense			308,389				-			-			-		308,389
		Intangible assets, net			11,314,783				994,001			72,830			-		12,381,614
	December 31, 2011
		Sales		$	4,713,270			$	25,303,120		$	7,344,477		$	-	$	37,360,867
		Gross profit			2,021,484				17,389,010			4,057,803			-		23,468,297
		Income before income taxes			873,092				7,726,113			(395,225	)		-		8,203,980
		Capital expenditures			61,048				699,392			122,544			-		882,984
		Depreciation and amortization			47,353				474,044			95,054			-		616,451
		Interest expense			-				-			-			-		-
		Intangible assets, net			86,484				744,465			78,587			-		909,536
	Total assets as of December 31, 2013			$	29,798,949			$	20,947,512		$	4,511,196		$	3,446,011	$	58,703,668
	Total assets as of December 31, 2012			$	28,798,541			$	20,630,686		$	4,471,779		$	3,318,765	$	57,219,771
	Property, Plant and Equipment, net of accumulated depreciation, by geographic location as of December 31, 2013, 2012 and 2011 is as follows:
			2013				2012			2011
	United States		$	4,034,771			$	3,699,258		$	2,896,793
	Foreign countries:
	Germany			308,398				333,662			277,955
	Denmark			1,049,254				943,507			-
	Other European counties			334,331				373,883			-
	Total foreign countries			1,691,983				1,651,052			277,955
	Consolidated total		$	5,726,754			$	5,350,310		$	3,174,748
	The following table summarizes total sales, based upon the country to which sales to external customers were made for fiscal years 2013, 2012 and 2011.
			Years Ended December 31,
			2013				2012			2011
	Domestic sales		$	19,052,295			$	17,973,487		$	16,297,487
	Foreign sales:
	Europe			23,966,303				18,744,215			8,654,088
	Asia			10,480,719				9,591,071			8,237,348
	Other			3,608,914				3,631,752			4,171,944
	Total foreign sales			38,055,936				31,967,038			21,063,380
	Total sales		$	57,108,231			$	49,940,525		$	37,360,867
	The Company’s products are marketed outside of North America through various independent representatives.

Schedule_II_Valuation_and_Qual

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]	'
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	'
	II - Valuation and Qualifying Accounts
	All other schedules are omitted as the required information is inapplicable or the information is presented in our consolidated financial statements or related notes.
	Description	Balance at		Charged to		Deductions		Balance at
		Beginning		Costs and				End of Year
		of Year		Expenses
	Year ended December 31, 2013:
	Allowance for doubtful accounts and sales returns	$	303,839		155,698		144,120	$	315,417
	Year ended December 31, 2012:
	Allowance for doubtful accounts and sales returns	$	150,921		257,310		104,392	$	303,839
	Year ended December 31, 2011:
	Allowance for doubtful accounts and sales returns	$	183,291		16,653		49,023	$	150,921

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Consolidation, Policy [Policy Text Block]	'
	Principles of Consolidation
	The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All material intercompany balances and transactions have been eliminated in consolidation.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	'
	Foreign Currency Translation
	The financial statements for operations outside the United States are maintained in their local currencies. All assets and liabilities of the Company’s foreign subsidiaries are translated to United States dollars at period-end exchange rates, while revenue and expense accounts are translated at the average exchange rates during the period transactions occurred. Translation adjustments arising from the use of differing exchange rates are included in accumulated other comprehensive income or loss in stockholders’ equity. Gains and losses on foreign currency transactions are included in other income or loss.
Cash and Cash Equivalents, Policy [Policy Text Block]	'
	Cash and Cash Equivalents
	The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. Cash equivalents consist of short-term investments which are readily convertible to cash.
Marketable Securities, Held-to-maturity Securities, Policy [Policy Text Block]	'
	Marketable Securities
	Marketable securities at December 31, 2013 consist of municipal bonds. Marketable securities at December 31, 2012 consisted of municipal bonds and certificates of deposit. The Company classifies its marketable securities as held-to-maturity due to its ability and intent to hold these securities until maturity or the call date as the case may be. Held-to-maturity securities are recorded at amortized cost, adjusted for the amortization or accretion of premiums or discounts. A decline in the market value of any held-to-maturity security below cost, that is deemed other than temporary, is charged to income, resulting in the establishment of a new cost basis for the security.
Receivables, Policy [Policy Text Block]	'
	Accounts Receivable
	Credit is granted to customers in the normal course of business. Receivables are recorded at original carrying value, which approximates fair value, less reserves for estimated uncollectible amounts and sales returns. The Company evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors that management believes to be reasonable under the circumstances, including the current economic environment. When facts and circumstances dictate, the Company may need to adjust its estimates and assumptions.
Inventory, Policy [Policy Text Block]	'
	Inventories
	Inventories are stated at the lower of cost or market. Cost is determined by the first-in, first-out (FIFO) method, and market represents the lower of replacement cost or estimated net realizable value. The Company records an estimate for excess and obsolete inventory which is based on historical usage and sales history.
Property, Plant and Equipment, Policy [Policy Text Block]	'
	Property, Plant and Equipment
	Property, plant and equipment are carried at cost. Depreciation and amortization are typically computed using the straight-line method. When assets are retired or otherwise disposed of, the cost and related accumulated depreciation are removed from the accounts, and any resulting gain or loss is recognized in income for the period. The cost of maintenance and repairs is charged to income as incurred and significant renewals and betterments are capitalized. The present value of capital lease obligations are classified as long-term debt and the related assets are included in property, plant and equipment. Amortization of equipment under capital leases is included in depreciation expense.
Goodwill and Intangible Assets, Policy [Policy Text Block]	'
	Goodwill and Other Intangible Assets
	As of December 31, 2013 and 2012, the Company had recorded goodwill of $9.0 million and $8.7 million, respectively. The Company tests goodwill at least annually for impairment. Approximately $5.6 million of goodwill resulting from the Dansensor acquisition is recorded within the Company’s Package Testing segment. The Company completed its annual impairment tests of goodwill and concluded that no impairment existed as of December 31, 2013 and 2012.
	Intangible assets consist of developed technology, patents, trademarks and other intangibles. Developed technology, patents, trademarks and other intangibles are carried at cost less accumulated amortization. Costs incurred in connection with applications for new patents are deferred until a final determination, with respect to the application, is made by appropriate regulatory agencies. Costs of patents abandoned are charged to income in the period of abandonment. Patent costs are amortized over the lesser of 17 years or their estimated useful lives using the straight-line method. Trademarks, trade names and other intangibles are amortized over three to five years.
Software to be Sold, Leased, or Otherwise Marketed, Policy [Policy Text Block]	'
	Software Development Costs
	The Company capitalizes certain software development costs related to software to be sold or otherwise marketed. Capitalized software development costs consist primarily of purchased materials and services. Software development costs are expensed as incurred until technological feasibility has been established, at which time future costs incurred are capitalized until the product is available for general release to the public. Based on the Company’s product development process, technological feasibility is generally established once product and detailed program designs have been completed, uncertainties related to high-risk development issues have been resolved through coding and testing, and the Company has established that the necessary skills, hardware, and software technology are available for production of the product. Once a software product is available for general release to the public, capitalized development costs associated with that product will begin to be amortized to cost of sales over the product’s estimated economic life, using the greater of straight-line or a method that results in cost recognition in future periods that is consistent with the anticipated timing of product revenue recognition.
	The Company’s capitalized software development costs are subject to an ongoing assessment of recoverability, which is impacted by estimates and assumptions of future revenues and expenses for these software products, as well as other factors such as changes in product technologies. Any portion of unamortized capitalized software development costs that are determined to be in excess of net realizable value will be expensed in the period such a determination is made. The Company capitalized $717,000 of software development costs during the year ended December 31, 2013. No software development costs were capitalized during the years ended December 31, 2012 or 2011.  As of December 31, 2013, the software development costs have not begun amortizing as the product was not yet available for general release to the public.
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]	'
	Impairment of Long-Lived Assets and Long-Lived Assets to be Disposed Of
	The Company reviews its long-lived assets and certain identifiable intangibles for impairment annually or whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Fair value is determined through various valuation techniques including, but not limited to, discounted cash flow models, quoted market values and third-party independent appraisals. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.
Equity and Cost Method Investments, Policy [Policy Text Block]	'
	Investment in Affiliated Company
	The Company has an equity investment in Luxcel Biosciences Limited, an early stage development company. The determination to account for this investment under the cost method was dependent upon a number of factors, including, but not limited to, the Company's share in the equity of the investee and the Company's ability to exercise significant influence over the operating and financial policies of the investee.
	The Company reviews its equity investment in affiliated company on a periodic basis for other-than-temporary decline in value. As of December 31, 2013 the Company has determined that it is not practicable to estimate the fair value of the investment in affiliated company. The Company performed an assessment of events or changes in circumstances that could indicate the carrying value of the investment in the affiliated company may not be recoverable and concluded that no impairment existed as of December 31, 2013.
Derivatives, Policy [Policy Text Block]	'
	Derivative Financial Instruments
	During 2012, the Company entered into a foreign currency contract to mitigate the currency risk on its third party seller financed note payable. The derivative contract contains credit risk to the extent that the Company's bank counterparty may be unable to meet the terms of the agreements. The amount of such credit risk is generally limited to the unrealized gains, if any, in the contracts.
	The Company does not use derivatives for speculative or trading purposes. The Company has elected not to apply the hedge accounting guidance under the applicable authoritative guidance. As a result, gains or losses related to mark-to-market adjustments on the foreign currency contract are recognized as other income or expense in the income statement during the period in which the instrument is outstanding. The fair value of the foreign currency contract represented the amount we would have received or paid to terminate the contract at the reporting date and was recorded in other current assets or liabilities depending on whether the net amount was a gain or a loss.
Standard Product Warranty, Policy [Policy Text Block]	'
	Warranty
	The Company records a liability for estimated warranty claims at the time of sale. The amount of the liability is based on the trend in the historical ratio of claims to sales, the historical length of time between the sale and resulting claim, new product introductions and other factors. In the event the Company determines that its current or future product repair and replacement costs exceed the Company estimates, an adjustment to these reserves would be charged to earnings in the period such determination is made.
Use of Estimates, Policy [Policy Text Block]	'
	Use of Estimates
	The preparation of the consolidated financial statements, in accordance with generally accepted principles in the United States of America, requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant items subject to such estimates and assumptions include the useful lives of property, valuation of plant and equipment, valuation of investment in affiliated company, goodwill and intangible assets, valuation of derivatives, inventory reserves, allowance for doubtful accounts, uncertain tax positions and warranty reserves. Actual results could differ from those estimates.
Income Tax, Policy [Policy Text Block]	'
	Income Taxes
	Deferred tax assets and liabilities are recognized for the estimated 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 in effect for the year 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 income in the period that includes the enactment date. A valuation allowance is provided to offset deferred tax assets if, based on the available evidence, it is more likely than not that some or all of the deferred tax asset will not be realized.
	In the ordinary course of business there is inherent uncertainty in quantifying our income tax positions.  We assess our income tax positions and record tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances, and information available at the reporting dates.  For those tax positions where it is more likely than not that a tax benefit will be sustained, we have recorded the largest amount of tax benefit with a greater than 50% likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information.  For those income tax positions where it is not more likely than not that a tax benefit will be sustained, no tax benefit has been recognized in the financial statements.  Potential accrued interest and penalties related to unrecognized tax benefits are recognized as a component of income tax expense.
Fair Value of Financial Instruments, Policy [Policy Text Block]	'
	Fair Value of Financial Instruments
	The Company’s financial instruments are recorded in its consolidated balance sheets. The carrying amount for cash and cash equivalents, accounts receivable, revolving lines of credit, accounts payable and accrued liabilities approximates fair value due to the immediate or short-term maturity of these financial instruments. The fair value of the Company’s term note payable and seller financed secured note payable at December 31, 2013 approximates the carrying value because interest rates on the note payable approximate market interest rates. The fair values of investments in marketable securities are based on quoted market prices and are summarized in Note 3. See Note 14 for fair value disclosure of the investment in Luxcel and Note 17 for fair value disclosure of derivative instruments.
Revenue Recognition, Policy [Policy Text Block]	'
	Revenue Recognition
	The Company recognizes revenue when it is realized or realizable and earned. The Company considers revenue realized or realizable when persuasive evidence of an arrangement exists, the product has been shipped or the services have been provided to the customer, title and risk of loss of products has passed to the customer, the sales price is fixed or determinable, and collectability is reasonably assured. The Company’s terms are generally FOB shipping point with no right of return, except in rare cases, and customer acceptance of its products is not required. The revenue recognition policy does not differ among the various product lines, the marketing venues, or various geographic destinations. The Company does not have distributors who stock its equipment. The Company does not offer rebates, price protection, or other similar incentives, and discounts when offered are recorded as a reduction in revenue.
	Revenue for preventive maintenance agreements is recognized on a per visit basis and extended warranties on a straight-line basis over the life of the contracts. Unearned revenue related to these contracts is recorded in current liabilities in the consolidated balance sheets.
	The Company periodically has shipments of products to customers in which revenue is recognized under the accounting guidance related to multiple element arrangements. The Company allocates the overall arrangement fee to each element (both delivered and undelivered items) based on their relative selling price, as demonstrated by vendor-specific evidence (VSOE) or third-party evidence (TPE). Where VSOE or TPE is not available, revenue is allocated using an estimated selling price.
	Shipping and handling fees billed to customers are reported within sales in the consolidated statements of income, and the related costs are included in cost of sales in the consolidated statements of income.
Advertising Costs, Policy [Policy Text Block]	'
	Advertising Costs
	The Company incurs advertising costs associated with trade shows, print advertising and brochures. Such costs are charged to expense as incurred. Advertising expense was approximately $831,000, $817,000 and $567,000 in 2013, 2012 and 2011, respectively.
Research and Development Expense, Policy [Policy Text Block]	'
	Research and Development Costs
	Research and development expenditures relate to the development of new product hardware and software and enhancements to existing products. All such costs are expensed as incurred.
Earnings Per Share, Policy [Policy Text Block]	'
	Net Income Per Common Share
	Basic net income per common share is computed by dividing net income by the weighted average of common shares outstanding during the year. Diluted net income per share is computed by dividing net income by the weighted average of common and potential dilutive common shares outstanding during the year.
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	'
	Stock-Based Compensation
	Under ASC 718, the Company recognizes compensation expense on a straight-line basis over the vesting period for all stock-based awards. Under the provisions of ASC 718, the Company recognizes stock-based compensation net of an estimated forfeiture rate, resulting in the recognition of compensation cost for only those shares expected to vest. See Note 10 for additional information on stock-based compensation.

Note_2_Business_Acquisition_Ta

Note 2 - Business Acquisition (Tables)	12 Months Ended
	Dec. 31, 2013										Dec. 31, 2012
Business Combinations [Abstract]	'										'
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	'										'
											Cash and cash equivalents	$	832,758
											Trade accounts receivable, net		3,348,142
											Other receivables		470,135
											Inventories		2,943,855
											Property, plant and equipment		1,376,296
											Other assets		117,464
											Intangible assets		12,210,330
											Identifiable assets acquired		21,298,980
											Accounts payable		744,714
											Other accrued expenses		2,533,742
											Deferred income tax-current		509,744
											Deferred income tax-long-term		3,069,017
											Liabilities assumed		6,857,217
											Net identifiable assets acquired		14,441,763
											Goodwill		5,639,837
											Purchase price	$	20,081,600
Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]	'										'
		Amount			Weighted
					Average Life -
					Years
	Trademark/trade name	$	3,819,090			20
	Developed technology		7,512,670			9
	Customer relationships		878,570			9
		$	12,210,330
Business Acquisition, Pro Forma Information [Table Text Block]	'										'
		Net Sales			Net			Basic
					Income (Loss)			Earnings
								per Share
	Dansensor results of operations since acquisition date (April 2, 2012 – December 31, 2012)	$	12,971,493		$	(1,177,354	)	$	--
	Supplemental pro forma combined results of operations (unaudited):
	Three months ended December 31, 2011		15,134,705			1,353,285			0.25
	Fiscal year ended December 31, 2012		54,814,162			2,086,563			0.38
	Fiscal year ended December 31, 2011		57,605,949			5,519,353			1.03
Business Acquisition, Pro Forma Information, Nonrecurring Adjustments [Table Text Block]	'										'
		Three months Ended			Fiscal Year Ended			Fiscal Year Ended
		31-Dec-11			31-Dec-12			31-Dec-11
	Amortization of intangibles	$	277,540		$	278,338		$	1,094,301
	Interest expense		79,027			106,237			377,071
	Income tax effect of adjustments		(106,970	)		(115,373	)		(470,839	)
		$	249,597		$	269,202		$	1,000,533

Note_3_Marketable_Securities_T

Note 3 - Marketable Securities (Tables)	12 Months Ended
	Dec. 31, 2013
Investments, Debt and Equity Securities [Abstract]	'
Held-to-maturity Securities [Table Text Block]	'
		2013				2012
		Amortized		Fair		Amortized		Fair
		Cost		Value		Cost		Value
	Held-to-maturity:
	Municipal bonds	$	205,000	$	205,000	$	2,903,003	$	2,908,030
	Certificates of deposit		-		-		2,802,993		2,811,677
		$	205,000	$	205,000	$	5,705,996	$	5,719,707
Investments Classified by Contractual Maturity Date [Table Text Block]	'
		2013				2012
		Amortized		Fair		Amortized		Fair
		Cost		Value		Cost		Value
	Due within one year	$	205,000	$	205,000	$	5,495,556	$	5,505,095
	After one year through five years		-		-		210,440		214,612
		$	205,000	$	205,000	$	5,705,996	$	5,719,707

Note_4_Inventories_Tables

Note 4 - Inventories (Tables)	12 Months Ended
	Dec. 31, 2013
Inventory Disclosure [Abstract]	'
Schedule of Inventory, Current [Table Text Block]	'
		2013		2012
	Finished products	$	1,638,997	$	1,554,203
	Work-in-process		1,934,493		1,599,761
	Raw materials		3,897,207		3,191,018
		$	7,470,697	$	6,344,982

Note_5_Property_Plant_and_Equi1

Note 5 - Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment [Table Text Block]	'
			2013			2012			Estimated
									useful lives
									(in years)
	Land		$	200,000		$	200,000			—
	Buildings			785,824			759,281			27
	Machinery and equipment			4,957,080			5,682,609		3	to	10
	Office equipment			4,759,331			2,880,938		2	to	15
	Leasehold improvements			2,268,143			2,226,065		1	to	15
	Vehicles			567,652			477,445		3	to	5
	Total property, plant and equipment			13,538,030			12,226,338
	Less accumulated depreciation			(7,811,276	)		(6,876,028	)
		Net property, plant and equipment	$	5,726,754		$	5,350,310

Note_6_Goodwill_and_Other_Inta1

Note 6 - Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill and Intangible Assets Disclosure [Abstract]	'
Schedule of Goodwill [Table Text Block]	'
		Package			Permeation			Industrial		Total
		Testing						Analyzers & Other
	Balance as of December 31, 2011	$	366,655		$	2,142,661		$	609,930	$	3,119,246
	Acquisition		5,639,837			-			-		5,639,837
	Foreign currency translation		(66,055	)		36,410			-		(29,645	)
	Balance as of December 31, 2012		5,940,437			2,179,071			609,930		8,729,438
	Foreign currency translation		234,933			70,108			-		305,041
	Balance as of December 31, 2013	$	6,175,370		$	2,249,179		$	609,930	$	9,034,479
Schedule of Finite-Lived Intangible Assets [Table Text Block]	'
		As of December 31, 2013
		Cost			Accumulated			Net
					Amortization
	Patents	$	1,624,590		$	(408,656	)	$	1,215,934
	Trademarks and trade names		4,121,170			(495,897	)		3,625,273
	Developed technology		7,730,550			(1,503,163	)		6,227,387
	Customer relationships		904,050			(175,787	)		728,263
	Internally developed software		716,800			-			716,800
	Other intangibles		245,118			(40,572	)		204,546
		$	15,342,278		$	(2,624,075	)	$	12,718,203
		As of December 31, 2012
		Cost			Accumulated			Net
					Amortization
	Patents	$	1,485,164		$	(428,409	)	$	1,056,755
	Trademarks and trade names		4,295,181			(608,861	)		3,686,320
	Developed technology		7,424,680			(618,723	)		6,805,957
	Customer relationships		868,280			(72,357	)		795,923
	Other intangibles		125,118			(88,459	)		36,659
		$	14,198,423		$	(1,816,809	)	$	12,381,614

Note_7_Warranty_Tables

Note 7 - Warranty (Tables)	12 Months Ended
	Dec. 31, 2013
Product Warranties Disclosures [Abstract]	'
Schedule of Product Warranty Liability [Table Text Block]	'
	Description		Balance at Beginning		Acquired		Warranty Provisions		Warranty		Balance at
			of Year		provision - Dansensor				Claims		End of Year
	Year ended December 31, 2013:
		Allowance for product warranties	$	240,621		—		442,097		347,185	$	335,533
	Year ended December 31, 2012:
		Allowance for product warranties	$	205,506		85,413		374,758		425,056	$	240,621
	Year ended December 31, 2011:
		Allowance for product warranties	$	217,819		—		227,112		239,425	$	205,506

Note_8_Commitments_and_Conting1

Note 8 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	'
	Year Ending December 31:
		Operating		Capital
		Leases		Leases
	2014	$	1,235,865	$	15,418
	2015		742,882		16,408
	2016		676,990		15,462
	2017		673,642		3,034
	2018		625,855		-
	2019 and thereafter		3,430,924		-
		$	7,386,158		50,322
	Less amounts representing interest				2,396
	Present value of minimum lease commitments			$	47,926

Note_9_Income_Taxes_Tables

Note 9 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	'
			2013				2012				2011
	Income (loss) before income taxes:
	Domestic		$	3,072,594			$	3,931,365			$	6,405,112
	Foreign			1,351,746				(551,243	)			1,798,868
	Total		$	4,424,340			$	3,380,122			$	8,203,980
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	'
			2013				2012				2011
	Current tax expense:
	Federal		$	806,932			$	1,420,599			$	1,934,352
	State			79,728				13,437				173,360
	Foreign			524,761				54,314				552,292
	Total current expense			1,411,421				1,488,350				2,660,004
	Deferred tax expense (benefit):
	Federal			18,512				(72,727	)			97,588
	State			(2,591	)			(3,542	)			4,580
	Foreign			(463,925	)			(33,933	)			(9,110	)
	Total deferred expense (benefit)			(448,004	)			(110,202	)			93,058
	Provision for income taxes		$	963,417			$	1,378,148			$	2,753,062
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	'
					Percentage of pretax income
					for years ended December 31,
					2013				2012				2011
	Tax at statutory federal income tax rate					34	%			34	%			34	%
	Increases (reductions) in taxes resulting from:
		State income taxes, net of federal benefit				1.2				1.2				1.5
		Change in valuation allowance				(0.3	)			-				0.6
		Domestic manufacturing deduction				(2.3	)			(3.8	)			(2.1	)
		Capitalized acquisition costs				0				3.6				-
		Effect of foreign operations				(8.5	)			5.9				(0.7	)
		Foreign dividend income				0				(1.5	)			-
		Tax-exempt interest				0				(0.4	)			(0.2	)
		Changes in unrecognized tax benefits				0.9				(0.3	)			0.3
		Stock option compensation				1.8				2.5				0.3
		Research credit				(5.7	)			-				(1.0	)
		Other				0.7				(0.4	)			0.9
			Effective income tax rate			21.8	%			40.8	%			33.6	%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	'
			2013				2012
	Deferred tax assets:
	Allowance for doubtful accounts		$	59,404			$	34,580
	Inventory items			455,455				371,089
	Reserves and accruals			731,570				502,141
	Compensation expense - stock options			184,635				177,717
	Foreign tax credit carryover			325,127				329,314
	Intangibles			20,102				29,734
	R&D credit carryover			57,772				-
	Other			273,360				319,137
	Subtotal			2,107,425				1,763,712
	Less: Valuation allowance			(108,172	)			(76,504	)
	Total deferred tax assets			1,999,253				1,687,208
	Deferred tax liabilities:
	Fixed assets			(815,555	)			(506,478	)
	Intangibles			(2,365,395	)			(2,808,675	)
	Total deferred tax liabilities			(3,180,950	)			(3,315,153	)
	Net deferred tax liability		$	(1,181,697	)		$	(1,627,945	)
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	'
			2013				2012
	Balance at January 1		$	233,000			$	244,000
	Additions based on tax positions related to the current year			20,000				5,000
	Additions based on tax positions related to the prior year			11,000				—
	Reductions due to closing of statute of limitations			—				(14,000	)
	Reductions based on tax positions related to the prior year			—				(2,000	)
	Balance at December 31		$	264,000			$	233,000

Note_10_StockBased_Compensatio1

Note 10 - Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]	'
			Years Ended December 31,
			2013				2012			2011
	Total cost of stock-based compensation		$	512,254			$	464,470		$	388,904
	Amount of income tax benefit recognized in earnings			(99,929	)			(77,009	)		(111,882	)
	Amount charged against net income		$	412,325			$	387,461		$	277,022
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	'
			2013				2012			2011
	Dividend yield			2.7	%			2.7	%		2.7	%
	Expected volatility			42	%			42	%		42	%
	Risk-free interest rate			1	%			1	%		1.1	%
	Expected lives (in years)			5.6				5.6			5.6
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	'
				Shares				Weighted			Weighted		Aggregate
								Average			Average		Intrinsic
								Exercise			Remaining		Value
								Price			Contractual
											Term
	Options outstanding, December 31, 2010				912,562			$	9.71			4.1	$	2,962,426
		Granted			132,900				16
		Exercised			(203,801	)			8.41
		Cancelled or expired			(11,875	)			9.08
	Options outstanding, December 31, 2011				829,786				11.05			4.1		4,108,291
		Granted			128,700				14.4
		Exercised			(108,624	)			8.56
		Cancelled or expired			(11,200	)			14.3
	Options outstanding, December 31, 2012				838,662				11.84			3.9		2,346,063
		Granted			10,000				14.16			6
		Exercised			(206,675	)			10.23
		Cancelled or expired			(19,687	)			14.12
	Options outstanding, December 31, 2013				622,300			$	12.34			3.7	$	2,174,673
	Options exercisable, December 31, 2013				543,075			$	11.99			3.5	$	2,084,949
Schedule of Share-based Compensation Stock Options Unvested Activity [Table Text Block]	'
				Number of				Weighted
				Shares				Average
								Grant Date
								Fair Value
	Unvested at December 31, 2012				209,925			$	4.04
		Options granted			10,000				4.45
		Options cancelled			(16,825	)			3.83
		Options vested			(123,875	)			4.14
	Unvested at December 31, 2013				79,225			$	3.98

Note_11_Other_Income_Expense_T

Note 11 - Other Income (Expense) (Tables)	12 Months Ended
	Dec. 31, 2013
Other Income and Expenses [Abstract]	'
Schedule of Other Nonoperating Income (Expense) [Table Text Block]	'
		Years Ended December 31,
		2013			2012			2011
	Interest income	$	21,896		$	83,416		$	117,680
	Interest expense		(298,769	)		(308,389	)		-
	Foreign currency exchange gain (loss)		(83,139	)		242,564			(37,276	)
	Other		849			2,921			(805	)
	Total other income (expense)	$	(359,163	)	$	20,512		$	79,599

Note_12_Net_Income_per_Common_1

Note 12 - Net Income per Common Share (Tables)	12 Months Ended
	Dec. 31, 2013
Earnings Per Share [Abstract]	'
Schedule of Weighted Average Number of Shares [Table Text Block]	'
		Years Ended December 31,
		2013		2012		2011
	Weighted shares of common stock outstanding - basic		5,544,722		5,477,131		5,342,900
	Dilutive impact of share-based awards		94,945		194,281		229,746
	Weighted shares of common stock outstanding - diluted		5,639,667		5,671,412		5,572,646

Note_16_Debt_Tables

Note 16 - Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Schedule of Long-term Debt Instruments [Table Text Block]	'
		December 31,		December 31,
		2013		2012
	Note payable to bank, with interest at 3.46%, payable in monthly principal installments of $72,917 plus interest through March 28, 2016, collateralized by all the assets of the Company except Dansensor stock.	$	2,041,660	$	2,916,664
	Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual principal and interest payments totaling $891,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding stock of Dansensor.		1,914,941		3,517,067
	Capital leases (Note 8)		47,926		59,286
	Total long-term notes payable	$	4,004,527	$	6,493,017
	Less current portion of long-term notes payable		2,697,678		2,566,154
	Total long-term notes payable	$	1,306,849	$	3,926,863
Schedule of Maturities of Long Term Debt and Future Minimum Payments Under Capital Leases [Table Text Block]	'
	2014	$2,697,678
	2015	997,588
	2016	306,378
	2017	2,883
	Total	$4,004,527

Note_17_Fair_Value_Measurement1

Note 17 - Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	'
				Fair Value
				Measurements
				at the end of
				the Reporting
				Period Using
		Carrying value		Significant Other
				Observable Inputs
				(Level 2)
	Assets
	December 31, 2013:
	Foreign currency contract		$183,137		$183,137
	December 31, 2012:
	Foreign currency contract		$209,370		$209,370

Note_18_Business_Segments_Tabl

Note 18 - Business Segments (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of Segment Reporting Information, by Segment [Table Text Block]	'
				Package				Permeation			Industrial			Unallocated - Corporate		Consolidated
				Testing							Analyzers and
											Other
	December 31, 2013
		Sales		$	25,241,298			$	21,394,485		$	10,472,448		$	-	$	57,108,231
		Gross profit			11,918,969				13,438,304			5,911,857			-		31,269,130
		Income before income taxes			679,409				3,338,366			406,565			-		4,424,340
		Capital expenditures			666,597				970,510			167,064			-		1,804,171
		Depreciation and amortization			1,688,560				629,464			115,159			-		2,433,183
		Interest expense			298,769				-			-			-		298,769
		Intangible assets, net			10,986,034				1,656,093			76,076			-		12,718,203
	December 31, 2012
		Sales		$	19,682,513			$	21,235,611		$	9,022,401		$	-	$	49,940,525
		Gross profit			8,450,145				13,682,530			5,201,242			-		27,333,917
		Income before income taxes			(1,501,182	)			4,369,845			511,459			-		3,380,122
		Capital expenditures			800,553				842,957			221,695			-		1,865,205
		Depreciation and amortization			1,432,638				401,577			115,567			-		1,949,782
		Interest expense			308,389				-			-			-		308,389
		Intangible assets, net			11,314,783				994,001			72,830			-		12,381,614
	December 31, 2011
		Sales		$	4,713,270			$	25,303,120		$	7,344,477		$	-	$	37,360,867
		Gross profit			2,021,484				17,389,010			4,057,803			-		23,468,297
		Income before income taxes			873,092				7,726,113			(395,225	)		-		8,203,980
		Capital expenditures			61,048				699,392			122,544			-		882,984
		Depreciation and amortization			47,353				474,044			95,054			-		616,451
		Interest expense			-				-			-			-		-
		Intangible assets, net			86,484				744,465			78,587			-		909,536
	Total assets as of December 31, 2013			$	29,798,949			$	20,947,512		$	4,511,196		$	3,446,011	$	58,703,668
	Total assets as of December 31, 2012			$	28,798,541			$	20,630,686		$	4,471,779		$	3,318,765	$	57,219,771
Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]	'
			2013				2012			2011
	United States		$	4,034,771			$	3,699,258		$	2,896,793
	Foreign countries:
	Germany			308,398				333,662			277,955
	Denmark			1,049,254				943,507			-
	Other European counties			334,331				373,883			-
	Total foreign countries			1,691,983				1,651,052			277,955
	Consolidated total		$	5,726,754			$	5,350,310		$	3,174,748
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]	'
			Years Ended December 31,
			2013				2012			2011
	Domestic sales		$	19,052,295			$	17,973,487		$	16,297,487
	Foreign sales:
	Europe			23,966,303				18,744,215			8,654,088
	Asia			10,480,719				9,591,071			8,237,348
	Other			3,608,914				3,631,752			4,171,944
	Total foreign sales			38,055,936				31,967,038			21,063,380
	Total sales		$	57,108,231			$	49,940,525		$	37,360,867

Note_1_Summary_of_Significant_1

Note 1 - Summary of Significant Accounting Policies (Details) (USD $)

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Apr. 02, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Package Testing Segment [Member]

Package Testing Segment [Member]

Package Testing Segment [Member]

Package Testing Segment [Member]

Dansensor [Member]

Patents [Member]

Minimum [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

Maximum [Member]

Dansensor [Member]

Trademarks [Member]

Trade Names [Member]

Other Intangible Assets [Member]

Trademarks [Member]

Trade Names [Member]

Other Intangible Assets [Member]

Note 1 - Summary of Significant Accounting Policies (Details) [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Operating Segments

4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of Reportable Segments

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Goodwill

$9,034,479

$8,729,438

$3,119,246

$5,600,000

$6,175,370

$5,940,437

$366,655

$5,639,837

'

'

'

'

'

'

'

Finite-Lived Intangible Asset, Useful Life

'

'

'

'

'

'

'

'

'17 years

'3 years

'3 years

'3 years

'5 years

'5 years

'5 years

Capitalized Software Development Costs for Software Sold to Customers

717,000

0

0

'

'

'

'

'

'

'

'

'

'

'

'

Advertising Expense

$831,000

$817,000

$567,000

'

'

'

'

'

'

'

'

'

'

'

'

Note_2_Business_Acquisition_De

Note 2 - Business Acquisition (Details) (USD $)	3 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Apr. 02, 2012	Dec. 31, 2012
				Fair Value Adjustment to Inventory [Member]	Dansensor [Member]	Dansensor [Member]
				Dansensor [Member]
Note 2 - Business Acquisition (Details) [Line Items]	'	'	'	'	'	'
Acquisition Purchase Price Net of Cash Acquired	'	'	'	'	$19,200,000	'
Payments to Acquire Businesses, Gross	'	'	'	'	13,600,000	'
	249,597	269,202	1,000,533	865,000	'	'
Business Acquisition, Transaction Costs	'	'	'	'	'	848,000
Business Combination, Acquisition Related Costs	'	'	'	'	'	$812,000

Note_2_Business_Acquisition_De1

Note 2 - Business Acquisition (Details) - Purchase Price Allocation for the Acquisition (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 02, 2012
				Dansensor [Member]
Note 2 - Business Acquisition (Details) - Purchase Price Allocation for the Acquisition [Line Items]	'	'	'	'
Cash and cash equivalents	'	'	'	$832,758
Trade accounts receivable, net	'	'	'	3,348,142
Other receivables	'	'	'	470,135
Inventories	'	'	'	2,943,855
Property, plant and equipment	'	'	'	1,376,296
Other assets	'	'	'	117,464
Intangible assets	'	'	'	12,210,330
Identifiable assets acquired	'	'	'	21,298,980
Accounts payable	'	'	'	744,714
Other accrued expenses	'	'	'	2,533,742
Deferred income tax-current	'	'	'	509,744
Deferred income tax-long-term	'	'	'	3,069,017
Liabilities assumed	'	'	'	6,857,217
Net identifiable assets acquired	'	'	'	14,441,763
Goodwill	9,034,479	8,729,438	3,119,246	5,639,837
Purchase price	'	'	'	$20,081,600

Note_2_Business_Acquisition_De2

Note 2 - Business Acquisition (Details) - The Allocation of the Purchase Price Resulted in the Recognition of the Following Intangible Assets (Dansensor [Member], USD $)	3 Months Ended
	Apr. 02, 2012
Acquired Finite-Lived Intangible Assets [Line Items]	'
Amount	$12,210,330
Trademarks and Trade Names [Member]	'
Acquired Finite-Lived Intangible Assets [Line Items]	'
Amount	3,819,090
Weighted Average Life-Years	'20 years
Developed Technology Rights [Member]	'
Acquired Finite-Lived Intangible Assets [Line Items]	'
Amount	7,512,670
Weighted Average Life-Years	'9 years
Customer Relationships [Member]	'
Acquired Finite-Lived Intangible Assets [Line Items]	'
Amount	$878,570
Weighted Average Life-Years	'9 years

Note_2_Business_Acquisition_De3

Note 2 - Business Acquisition (Details) - The Supplemental Unaudited Pro Forma Net Sales and Net Income of the Combined Entity (USD $)	12 Months Ended					3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
						Dansensor [Member]	Dansensor [Member]	Dansensor [Member]	Dansensor [Member]
Note 2 - Business Acquisition (Details) - The Supplemental Unaudited Pro Forma Net Sales and Net Income of the Combined Entity [Line Items]	'	'	'	'	'	'	'	'	'
Dansensor results of operations since acquisition date (April 2, 2012 b December 31, 2012)	$57,108,231	$49,940,525	$49,940,525	$37,360,867	$37,360,867	'	$12,971,493	'	'
Dansensor results of operations since acquisition date (April 2, 2012 b December 31, 2012)	3,460,923	'	2,001,974	'	5,450,918	'	-1,177,354	'	'
Supplemental pro forma combined results of operations (unaudited):	'	'	'	'	'	'	'	'	'
Net Sales	'	'	'	'	'	15,134,705	'	54,814,162	57,605,949
Net Income (Loss)	'	'	'	'	'	$1,353,285	'	$2,086,563	$5,519,353
Basic Earnings per Share (in Dollars per share)	'	'	'	'	'	$0.25	'	$0.38	$1.03

Note_2_Business_Acquisition_De4

Note 2 - Business Acquisition (Details) - Material Items Included in the Supplemental Unaudited Pro Forma Disclosures (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'	'
Nonrecurring adjustment	$249,597	$269,202	$1,000,533
Amortization of Intangibles [Member]	'	'	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'	'
Nonrecurring adjustment	277,540	278,338	1,094,301
Interest Expenses [Member]	'	'	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'	'
Nonrecurring adjustment	79,027	106,237	377,071
Tax Effect of Adjustments [Member]	'	'	'
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]	'	'	'
Nonrecurring adjustment	($106,970)	($115,373)	($470,839)

Note_3_Marketable_Securities_D

Note 3 - Marketable Securities (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments, Debt and Equity Securities [Abstract]	'	'	'
Held-to-maturity Securities, Sold Security, Realized Gain (Loss)	$0	$0	$0

Note_3_Marketable_Securities_D1

Note 3 - Marketable Securities (Details) - Amortized Cost and Fair Value for Held-To-Maturity Securities by Major Security Type (USD $)	Dec. 31, 2013	Dec. 31, 2012
Held-to-maturity:	'	'
Amortized Cost	$205,000	$5,705,996
Fair Value	205,000	5,719,707
Municipal Bonds [Member]	'	'
Held-to-maturity:	'	'
Amortized Cost	205,000	2,903,003
Fair Value	205,000	2,908,030
Certificates of Deposit [Member]	'	'
Held-to-maturity:	'	'
Amortized Cost	'	2,802,993
Fair Value	'	$2,811,677

Note_3_Marketable_Securities_D2

Note 3 - Marketable Securities (Details) - Maturities of Investment Securities (USD $)	Dec. 31, 2013	Dec. 31, 2012
Maturities of Investment Securities [Abstract]	'	'
Due within one year	$205,000	$5,495,556
Due within one year	205,000	5,505,095
After one year through five years	'	210,440
After one year through five years	'	214,612
	205,000	5,705,996
	$205,000	$5,719,707

Note_4_Inventories_Details_Maj

Note 4 - Inventories (Details) - Major Components of Inventories (USD $)	Dec. 31, 2013	Dec. 31, 2012
Major Components of Inventories [Abstract]	'	'
Finished products	$1,638,997	$1,554,203
Work-in-process	1,934,493	1,599,761
Raw materials	3,897,207	3,191,018
	$7,470,697	$6,344,982

Note_5_Property_Plant_and_Equi2

Note 5 - Property, Plant and Equipment (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property, Plant and Equipment [Abstract]	'	'	'
Depreciation	$1,208,878	$1,042,606	$530,326

Note_5_Property_Plant_and_Equi3

Note 5 - Property, Plant and Equipment (Details) - Property, Plant and Equipment (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Land [Member]

Land [Member]

Building [Member]

Building [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Machinery and Equipment [Member]

Office Equipment [Member]

Office Equipment [Member]

Office Equipment [Member]

Office Equipment [Member]

Leasehold Improvements [Member]

Leasehold Improvements [Member]

Leasehold Improvements [Member]

Leasehold Improvements [Member]

Vehicles [Member]

Vehicles [Member]

Vehicles [Member]

Vehicles [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Property, Plant and Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Property, plant and equipment

$13,538,030

$12,226,338

'

$200,000

$200,000

$785,824

$759,281

$4,957,080

$5,682,609

'

'

$4,759,331

$2,880,938

'

'

$2,268,143

$2,226,065

'

'

$567,652

$477,445

'

'

Estimated useful lives

'

'

'

'

'

'27 years

'

'

'

'3 years

'10 years

'

'

'2 years

'15 years

'

'

'1 year

'15 years

'

'

'3 years

'5 years

Less accumulated depreciation

-7,811,276

-6,876,028

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net property, plant and equipment

$5,726,754

$5,350,310

$3,174,748

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Note_6_Goodwill_and_Other_Inta2

Note 6 - Goodwill and Other Intangible Assets (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Apr. 02, 2012
				Dansensor [Member]
Note 6 - Goodwill and Other Intangible Assets (Details) [Line Items]	'	'	'	'
Goodwill	$9,034,479	$8,729,438	$3,119,246	$5,639,837
Goodwill, Acquired During Period	'	5,639,837	'	5,600,000
Amortization of Intangible Assets	1,224,305	907,176	86,125	'
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	1,281,986	'	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Two	1,277,334	'	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Three	1,260,735	'	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Four	1,228,410	'	'	'
Finite-Lived Intangible Assets, Amortization Expense, Year Five	1,197,641	'	'	'
Finite-Lived Intangible Assets, Amortization Expense, after Year Five	$5,081,524	'	'	'

Note_6_Goodwill_and_Other_Inta3

Note 6 - Goodwill and Other Intangible Assets (Details) - Changes in the Carrying Amount of Goodwill (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
			Package Testing Segment [Member]	Package Testing Segment [Member]	Permeation Segment [Member]	Permeation Segment [Member]	Industrial Analyzers and Other Segment [Member]	Industrial Analyzers and Other Segment [Member]	Industrial Analyzers and Other Segment [Member]
Goodwill [Line Items]	'	'	'	'	'	'	'	'	'
Balance	$8,729,438	$3,119,246	$5,940,437	$366,655	$2,179,071	$2,142,661	$609,930	$609,930	$609,930
Acquisition	'	5,639,837	'	5,639,837	'	'	'	'	'
Foreign currency translation	305,041	-29,645	234,933	-66,055	70,108	36,410	'	'	'
Balance	$9,034,479	$8,729,438	$6,175,370	$5,940,437	$2,249,179	$2,179,071	$609,930	$609,930	$609,930

Note_6_Goodwill_and_Other_Inta4

Note 6 - Goodwill and Other Intangible Assets (Details) - Other Intangible Assets (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	$15,342,278	$14,198,423	'
Accumulated Amortization	-2,624,075	-1,816,809	'
Net	12,718,203	12,381,614	909,536
Patents [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	1,624,590	1,485,164	'
Accumulated Amortization	-408,656	-428,409	'
Net	1,215,934	1,056,755	'
Trademarks and Trade Names [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	4,121,170	4,295,181	'
Accumulated Amortization	-495,897	-608,861	'
Net	3,625,273	3,686,320	'
Developed Technology Rights [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	7,730,550	7,424,680	'
Accumulated Amortization	-1,503,163	-618,723	'
Net	6,227,387	6,805,957	'
Customer Relationships [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	904,050	868,280	'
Accumulated Amortization	-175,787	-72,357	'
Net	728,263	795,923	'
In Process Research and Development [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	716,800	'	'
Net	716,800	'	'
Other Intangible Assets [Member]	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Cost	245,118	125,118	'
Accumulated Amortization	-40,572	-88,459	'
Net	$204,546	$36,659	'

Note_7_Warranty_Details

Note 7 - Warranty (Details)	12 Months Ended
	Dec. 31, 2013
Product Warranties Disclosures [Abstract]	'
Product Warranty Period Low End of Range	'90 days
Product Warranty Period High End of Range	'1 year

Note_7_Warranty_Details_Warran

Note 7 - Warranty (Details) - Warranty Provisions and Claims (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Warranty Provisions and Claims [Abstract]	'	'	'
Balance at Beginning of Year	$240,621	$205,506	$217,819
Acquired provision-Dansensor	'	85,413	'
Warranty Provisions	442,097	374,758	227,112
Warranty Claims	347,185	425,056	239,425
Balance at End of Year	$335,533	$240,621	$205,506

Note_8_Commitments_and_Conting2

Note 8 - Commitments and Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 8 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Capital Leases, Balance Sheet, Assets by Major Class, Net	$65,100	'	'
Operating Leases, Rent Expense, Net	1,148,940	1,071,798	629,405
Inventory Purchase Obligations [Member]	'	'	'
Note 8 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Purchase Commitment, Remaining Minimum Amount Committed	$3,800,000	'	'
Employee Severance [Member]	'	'	'
Note 8 - Commitments and Contingencies (Details) [Line Items]	'	'	'
Number of Excecutive Officers with Whom Severance Agreement is Available	4	'	'
Number of Divisional Officers with Whom Severance Agreement is Available	2	'	'

Note_8_Commitments_and_Conting3

Note 8 - Commitments and Contingencies (Details) - Future Minimum Lease Payments (USD $)	Dec. 31, 2013
Future Minimum Lease Payments [Abstract]	'
2014	$1,235,865
2014	15,418
2015	742,882
2015	16,408
2016	676,990
2016	15,462
2017	673,642
2017	3,034
2018	625,855
2019 and thereafter	3,430,924
	7,386,158
	50,322
Less amounts representing interest	2,396
Present value of minimum lease commitments	$47,926

Note_9_Income_Taxes_Details

Note 9 - Income Taxes (Details)	Dec. 31, 2013	Dec. 31, 2012	Mar. 31, 2012	Mar. 31, 2012	Jan. 31, 2011	Jan. 31, 2011	Dec. 31, 2013
	USD ($)	USD ($)	German Subsidiary [Member]	German Subsidiary [Member]	German Subsidiary [Member]	German Subsidiary [Member]	SPAIN
			USD ($)	EUR (€)	USD ($)	EUR (€)	USD ($)
Note 9 - Income Taxes (Details) [Line Items]	'	'	'	'	'	'	'
Deferred Tax Assets, Valuation Allowance	$108,172	$76,504	'	'	'	'	$57,772
Valuation Allowance, Deferred Tax Asset, Change in Amount	'	'	'	'	'	'	-50,400
Foreign Earnings Repatriated	'	'	3,300,000	2,500,000	3,300,000	2,500,000	'
Undistributed Earnings of Foreign Subsidiaries	3,000,000	'	'	'	'	'	'
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	208,000	'	'	'	'	'	'
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$40,000	$33,000	'	'	'	'	'

Note_9_Income_Taxes_Details_In

Note 9 - Income Taxes (Details) - Income before Income Taxes (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011
Income (loss) before income taxes:	'	'	'	'	'
Domestic	$3,072,594	'	$3,931,365	'	$6,405,112
Foreign	1,351,746	'	-551,243	'	1,798,868
Total	$4,424,340	$3,380,122	$3,380,122	$8,203,980	$8,203,980

Note_9_Income_Taxes_Details_Th

Note 9 - Income Taxes (Details) - The Provision (Benefit) for Income Taxes (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current tax expense:	'	'	'
Federal	$806,932	$1,420,599	$1,934,352
State	79,728	13,437	173,360
Foreign	524,761	54,314	552,292
Total current expense	1,411,421	1,488,350	2,660,004
Deferred tax expense (benefit):	'	'	'
Federal	18,512	-72,727	97,588
State	-2,591	-3,542	4,580
Foreign	-463,925	-33,933	-9,110
Total deferred expense (benefit)	-448,004	-110,202	93,058
Provision for income taxes	$963,417	$1,378,148	$2,753,062

Note_9_Income_Taxes_Details_Ef

Note 9 - Income Taxes (Details) - Effective Income Tax Rate Reconciliation	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Effective Income Tax Rate Reconciliation [Abstract]	'	'	'
Tax at statutory federal income tax rate	34.00%	34.00%	34.00%
Increases (reductions) in taxes resulting from:	'	'	'
State income taxes, net of federal benefit	1.20%	1.20%	1.50%
Change in valuation allowance	-0.30%	'	0.60%
Domestic manufacturing deduction	-2.30%	-3.80%	-2.10%
Capitalized acquisition costs	0.00%	3.60%	'
Effect of foreign operations	-8.50%	5.90%	-0.70%
Foreign dividend income	0.00%	-1.50%	'
Tax-exempt interest	0.00%	-0.40%	-0.20%
Changes in unrecognized tax benefits	0.90%	-0.30%	0.30%
Stock option compensation	1.80%	2.50%	0.30%
Research credit	-5.70%	'	-1.00%
Other	0.70%	-0.40%	0.90%
Effective income tax rate	21.80%	40.80%	33.60%

Note_9_Income_Taxes_Details_De

Note 9 - Income Taxes (Details) - Deferred Tax Assets and Liabilities (USD $)	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets:	'	'
Allowance for doubtful accounts	$59,404	$34,580
Inventory items	455,455	371,089
Reserves and accruals	731,570	502,141
Compensation expense - stock options	184,635	177,717
Foreign tax credit carryover	325,127	329,314
Intangibles	20,102	29,734
R&D credit carryover	57,772	'
Other	273,360	319,137
Subtotal	2,107,425	1,763,712
Less: Valuation allowance	-108,172	-76,504
Total deferred tax assets	1,999,253	1,687,208
Deferred tax liabilities:	'	'
Fixed assets	-815,555	-506,478
Intangibles	-2,365,395	-2,808,675
Total deferred tax liabilities	-3,180,950	-3,315,153
Net deferred tax liability	($1,181,697)	($1,627,945)

Note_9_Income_Taxes_Details_A_

Note 9 - Income Taxes (Details) - A Reconciliation of Gross Unrecognized Tax Benefits (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
A Reconciliation of Gross Unrecognized Tax Benefits [Abstract]	'	'
Balance at January 1	$233,000	$244,000
Additions based on tax positions related to the current year	20,000	5,000
Additions based on tax positions related to the prior year	11,000	'
Reductions due to closing of statute of limitations	'	-14,000
Reductions based on tax positions related to the prior year	'	-2,000
Balance at December 31	$264,000	$233,000

Note_10_StockBased_Compensatio2

Note 10 - Stock-Based Compensation (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009
Four Year Vesting Period [Member] | Employee Stock Option [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'4 years	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Period of Awards Vesting At Each Anniversary	'1 year	'	'	'
One Year Vesting Period [Member] | Employee Stock Option [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	'1 year	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Period of Awards Vesting At Each Anniversary	'3 months	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Portion of Employees Stock Options Vested Per Quarter	25.00%	'	'	'
Employee Stock Option [Member] | Stock Incentive Plan 2006 and Stock Option Plan 1998 [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	622,300	'	'	'
Employee Stock Option [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	622,300	838,662	829,786	912,562
Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions Contractual Term	'7 years	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions Number of Quarters Used In Calculation of Expected Dividend Rate	4	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$4.45	$4.18	$4.60	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$823,866	$794,345	$1,341,057	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized	315,401	'	'	'
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	'1 year 255 days	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	$512,580	$464,470	$388,904	'
Stock Incentive Plan 2006 [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	281,089	'	'	'
Stock Incentive Plan 2006 and Stock Option Plan 1998 [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent	100.00%	'	'	'
Stock Incentive Plan 2006 and Stock Option Plan 1998 [Member] | Persons Owning 10% Or Greater [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Purchase Price of Common Stock Percentage for Grants to Persons Having More Than 10 Percent of Common Stock	110.00%	'	'	'
Minimum [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Options Exercise Period	'7 years	'	'	'
Maximum [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) [Line Items]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award Options Exercise Period	'10 years	'	'	'

Note_10_StockBased_Compensatio3

Note 10 - Stock-Based Compensation (Details) - Stock-Based Compensation Expense (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock-Based Compensation Expense [Abstract]	'	'	'
Total cost of stock-based compensation	$512,254	$464,470	$388,904
Amount of income tax benefit recognized in earnings	-99,929	-77,009	-111,882
Amount charged against net income	$412,325	$387,461	$277,022

Note_10_StockBased_Compensatio4

Note 10 - Stock-Based Compensation (Details) - Valuation Assumptions (Employee Stock Option [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Option [Member]	'	'	'
Note 10 - Stock-Based Compensation (Details) - Valuation Assumptions [Line Items]	'	'	'
Dividend yield	2.70%	2.70%	2.70%
Expected volatility	42.00%	42.00%	42.00%
Risk-free interest rate	1.00%	1.00%	1.10%
Expected lives (in years)	'5 years 219 days	'5 years 219 days	'5 years 219 days

Note_10_StockBased_Compensatio5

Note 10 - Stock-Based Compensation (Details) - Information Regarding the Company's Stock Option Plans (Employee Stock Option [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Employee Stock Option [Member]	'	'	'	'
Note 10 - Stock-Based Compensation (Details) - Information Regarding the Company's Stock Option Plans [Line Items]	'	'	'	'
Options outstanding	838,662	829,786	'	912,562
Options outstanding	$11.84	$11.05	'	$9.71
Options outstanding	'3 years 255 days	'3 years 328 days	'4 years 36 days	'4 years 36 days
Options outstanding	$2,346,063	$4,108,291	'	$2,962,426
Options exercisable, December 31, 2013	543,075	'	'	'
Options exercisable, December 31, 2013	$11.99	'	'	'
Options exercisable, December 31, 2013	'3 years 6 months	'	'	'
Options exercisable, December 31, 2013	2,084,949	'	'	'
Granted	10,000	128,700	132,900	'
Granted	$14.16	$14.40	$16	'
Granted	'6 years	'	'	'
Exercised	-206,675	-108,624	-203,801	'
Exercised	$10.23	$8.56	$8.41	'
Cancelled or expired	-19,687	-11,200	-11,875	'
Cancelled or expired	$14.12	$14.30	$9.08	'
Options outstanding	622,300	838,662	829,786	'
Options outstanding	$12.34	$11.84	$11.05	'
Options outstanding	'3 years 255 days	'3 years 328 days	'4 years 36 days	'4 years 36 days
Options outstanding	$2,174,673	$2,346,063	$4,108,291	'

Note_10_StockBased_Compensatio6

Note 10 - Stock-Based Compensation (Details) - A Summary of the Status of the Company's Unvested Option Shares (Employee Stock Option [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Employee Stock Option [Member]	'	'	'
Note 10 - Stock-Based Compensation (Details) - A Summary of the Status of the Company's Unvested Option Shares [Line Items]	'	'	'
Unvested at December 31, 2012	209,925	'	'
Unvested at December 31, 2012	$4.04	'	'
Options granted	10,000	128,700	132,900
Options granted	$4.45	$4.18	$4.60
Options cancelled	-16,825	'	'
Options cancelled	$3.83	'	'
Options vested	-123,875	'	'
Options vested	$4.14	'	'
Unvested at December 31, 2013	79,225	209,925	'
Unvested at December 31, 2013	$3.98	$4.04	'

Note_11_Other_Income_Expense_D

Note 11 - Other Income (Expense) (Details) - Other Income, Net (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011
Other Income, Net [Abstract]	'	'	'	'
Interest income	$21,896	'	$83,416	$117,680
Interest expense	-298,769	-308,389	-308,389	'
Foreign currency exchange gain (loss)	-83,139	'	242,564	-37,276
Other	849	'	2,921	-805
Total other income (expense)	($359,163)	'	$20,512	$79,599

Note_12_Net_Income_per_Common_2

Note 12 - Net Income per Common Share (Details) (Equity Option [Member])	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity Option [Member]	'	'	'
Note 12 - Net Income per Common Share (Details) [Line Items]	'	'	'
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	251,150	125,400	0

Note_12_Net_Income_per_Common_3

Note 12 - Net Income per Common Share (Details) - Reconciliation of the Denominators Used in the Computation of Net Income per Common Share	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reconciliation of the Denominators Used in the Computation of Net Income per Common Share [Abstract]	'	'	'
Weighted shares of common stock outstanding - basic	5,544,722	5,477,131	5,342,900
Dilutive impact of share-based awards	94,945	194,281	229,746
Weighted shares of common stock outstanding - diluted	5,639,667	5,671,412	5,572,646

Note_13_Savings_and_Retirement1

Note 13 - Savings and Retirement Plan (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation and Retirement Disclosure [Abstract]	'	'	'
Defined Contribution Plan, Employer Discretionary Contribution Amount	$886,000	$796,000	$218,000

Note_14_Investment_in_Affiliat1

Note 14 - Investment in Affiliated Company (Details)	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2013	Dec. 31, 2012	Dec. 31, 2013	Jan. 31, 2010	Jan. 31, 2010
	USD ($)	USD ($)	Luxcel Biosciences Limited [Member]	Luxcel Biosciences Limited [Member]	Luxcel Biosciences Limited [Member]	Luxcel Biosciences Limited [Member]	Luxcel Biosciences Limited [Member]
			USD ($)		USD ($)	USD ($)	EUR (€)
Note 14 - Investment in Affiliated Company (Details) [Line Items]	'	'	'	'	'	'	'
Cost Method Investments	'	'	'	'	'	$3,600,000	€ 2,500,000
Cost Method Investments Ownership Percentage	'	'	'	'	'	16.90%	16.90%
Investment Warrants Number of Securities for Which It Was Elected Not To Be Exercised in Specified Period (in Shares)	'	'	'	375,000	'	'	'
Contractual Obligation Paid	'	'	200,000	'	'	'	'
Number Of Licenses	'	'	2	'	'	'	'
Term Of Licenses	'	'	'4 years	'	'	'	'
Other Accrued Liabilities, Current	781,151	868,199	'	'	200,000	'	'
Contractual Obligation Refundable	'	'	300,000	'	'	'	'
Prepaid Research and Development Work Order Expense	'	'	'	'	$100,000	'	'

Note_15_Derivative_Instrument_

Note 15 - Derivative Instrument (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
	USD ($)	USD ($)	USD ($)	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]	Designated as Hedging Instrument [Member]
				Foreign Exchange Contract [Member]	Foreign Exchange Contract [Member]	Foreign Exchange Contract [Member]	Foreign Exchange Contract [Member]
				USD ($)	DKK	USD ($)	DKK
Note 15 - Derivative Instrument (Details) [Line Items]	'	'	'	'	'	'	'
Number of Foreign Currency Derivatives Held	1	1	'	'	'	'	'
Derivative Asset, Notional Amount	'	'	'	$2,000,000	10,700,000	$3,700,000	20,700,000
Foreign Currency Derivative Assets at Fair Value	'	'	'	183,100	'	209,400	'
Change in Unrealized Gain (Loss) on Foreign Currency Fair Value Hedging Instruments	($27,000)	$209,400	$0	'	'	'	'

Note_16_Debt_Details

Note 16 - Debt (Details)	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2012	Jun. 28, 2012	Jun. 28, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013
	Dansensor [Member]	Dansensor [Member]	Dansensor [Member]	London Interbank Offered Rate (LIBOR) [Member]	Line of Credit [Member]	Line of Credit [Member]	Seller Financed Secured Note Payable [Member]	Seller Financed Secured Note Payable [Member]	Seller Financed Secured Note Payable [Member]	Seller Financed Secured Note Payable [Member]	Notes Payable, Other Payables [Member]
	USD ($)	DKK	USD ($)	Line of Credit [Member]	USD ($)	USD ($)	USD ($)	DKK
Note 16 - Debt (Details) [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Line of Credit Facility, Maximum Borrowing Capacity	$1,800,000	10,000,000	'	'	$5,000,000	'	'	'	'	'	'
Debt Instrument, Description of Variable Rate Basis	'	'	'	'	'one-month LIBOR	'	'	'	'	'	'
Debt Instrument, Basis Spread on Variable Rate	'	'	'	1.75%	'	'	'	'	'	'	'
Line of Credit Facility, Interest Rate at Period End	'	'	'	'	2.00%	2.00%	'	'	'	'	'
Line of Credit Facility, Amount Outstanding	264,000	'	652,000	'	4,000,000	4,700,000	'	'	'	'	'
Debt Instrument, Interest Rate, Stated Percentage	4.35%	4.35%	'	'	'	'	'	'	'	'	'
Number of Installment Prepayments Allowed by Amended Credit Facility	'	'	'	'	'	'	2	2	'	'	'
Amount of Each Installment of Prepayments Allowed by Amended Credit Facility	'	'	'	'	'	'	$1,100,000	6,500,000	'	'	'
Debt Instrument Percentage of Common Stock Secured Before Amendment	'	'	'	'	'	'	'	'	'	'	100.00%
	'	'	'	'	'	'	'	'	65.00%	65.00%	65.00%

Note_16_Debt_Details_LongTerm_

Note 16 - Debt (Details) - Long-Term Notes Payable (USD $)	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]	'	'
Note payable to bank, with interest at 3.46%, payable in monthly principal installments of $72,917 plus interest through March 28, 2016, collateralized by all the assets of the Company except Dansensor stock.	$2,041,660	$2,916,664
Seller financed note payable (Seller Note), with interest at 3.46%, payable in semi-annual principal and interest payments totaling $891,000 beginning October 2, 2012 through April 2, 2015, collateralized by 65% of the outstanding stock of Dansensor.	1,914,941	3,517,067
Capital leases (Note 8)	47,926	59,286
Total long-term notes payable	4,004,527	6,493,017
Less current portion of long-term notes payable	2,697,678	2,566,154
Total long-term notes payable	$1,306,849	$3,926,863

Note_16_Debt_Details_LongTerm_1

Note 16 - Debt (Details) - Long-Term Notes Payable (Parentheticals) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Notes Payable to Banks [Member]	'	'
Debt Instrument [Line Items]	'	'
Interest	3.46%	3.46%
Monthly principal installments (in Dollars)	$72,917	$72,917
Seller Financed Secured Note Payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Interest	3.46%	3.46%
Semi-annual principal and interest payments (in Dollars)	$891,000	$891,000
Collateralized by percent of the outstanding stock of Dansensor	65.00%	65.00%

Note_16_Debt_Details_Future_Mi

Note 16 - Debt (Details) - Future Minimum Principal Payments of the Long-Term Notes Payable (USD $)	Dec. 31, 2013	Dec. 31, 2012
Note 16 - Debt (Details) - Future Minimum Principal Payments of the Long-Term Notes Payable [Line Items]	'	'
Total	$4,004,527	$6,493,017
Notes Payable [Member]	'	'
Note 16 - Debt (Details) - Future Minimum Principal Payments of the Long-Term Notes Payable [Line Items]	'	'
2014	2,697,678	'
2015	997,588	'
2016	306,378	'
2017	2,883	'
Total	$4,004,527	'

Note_17_Fair_Value_Measurement2

Note 17 - Fair Value Measurements (Details) - Assets that are Measured at Fair Value on a Recurring Basis (Fair Value, Measurements, Recurring [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
Fair Value, Inputs, Level 2 [Member]	'	'
Assets	'	'
Foreign currency contract	$183,137	$209,370
Reported Value Measurement [Member]	'	'
Assets	'	'
Foreign currency contract	$183,137	$209,370

Note_18_Business_Segments_Deta

Note 18 - Business Segments (Details) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011
Note 18 - Business Segments (Details) [Line Items]	'	'	'	'	'	'
Number of Operating Segments	'	4	'	'	'	'
Number of Reportable Segments	'	3	'	'	'	'
Revenue, Net	'	$57,108,231	$49,940,525	$49,940,525	$37,360,867	$37,360,867
	249,597	'	'	269,202	'	1,000,533
Package Testing Segment [Member] | Fair Value Adjustment to Inventory [Member]	'	'	'	'	'	'
Note 18 - Business Segments (Details) [Line Items]	'	'	'	'	'	'
	'	'	'	865,000	'	'
Package Testing Segment [Member]	'	'	'	'	'	'
Note 18 - Business Segments (Details) [Line Items]	'	'	'	'	'	'
Revenue, Net	'	25,241,298	19,682,513	'	4,713,270	'
Business Combination, Acquisition Related Costs	'	'	'	812,000	'	'
Intersegment [Member]	'	'	'	'	'	'
Note 18 - Business Segments (Details) [Line Items]	'	'	'	'	'	'
Revenue, Net	'	$0	'	$0	'	$0

Note_18_Business_Segments_Deta1

Note 18 - Business Segments (Details) - Segment Information (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales	$57,108,231	$49,940,525	$49,940,525	$37,360,867	$37,360,867
Gross profit	31,269,130	27,333,917	27,333,917	23,468,297	23,468,297
Income before income taxes	4,424,340	3,380,122	3,380,122	8,203,980	8,203,980
Capital expenditures	1,804,171	1,865,205	'	882,984	'
Depreciation and amortization	2,433,183	1,949,782	1,949,782	616,451	616,451
Interest expense	298,769	308,389	308,389	'	'
Intangible assets, net	12,718,203	12,381,614	12,381,614	909,536	909,536
Total assets	58,703,668	57,219,771	57,219,771	'	'
Package Testing Segment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales	25,241,298	19,682,513	'	4,713,270	'
Gross profit	11,918,969	8,450,145	'	2,021,484	'
Income before income taxes	679,409	-1,501,182	'	873,092	'
Capital expenditures	666,597	800,553	'	61,048	'
Depreciation and amortization	1,688,560	1,432,638	'	47,353	'
Interest expense	298,769	308,389	'	'	'
Intangible assets, net	10,986,034	11,314,783	11,314,783	86,484	86,484
Total assets	29,798,949	28,798,541	28,798,541	'	'
Permeation Segment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales	21,394,485	21,235,611	'	25,303,120	'
Gross profit	13,438,304	13,682,530	'	17,389,010	'
Income before income taxes	3,338,366	4,369,845	'	7,726,113	'
Capital expenditures	970,510	842,957	'	699,392	'
Depreciation and amortization	629,464	401,577	'	474,044	'
Intangible assets, net	1,656,093	994,001	994,001	744,465	744,465
Total assets	20,947,512	20,630,686	20,630,686	'	'
Industrial Analyzers and Other Segment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Sales	10,472,448	9,022,401	'	7,344,477	'
Gross profit	5,911,857	5,201,242	'	4,057,803	'
Income before income taxes	406,565	511,459	'	-395,225	'
Capital expenditures	167,064	221,695	'	122,544	'
Depreciation and amortization	115,159	115,567	'	95,054	'
Intangible assets, net	76,076	72,830	72,830	78,587	78,587
Total assets	4,511,196	4,471,779	4,471,779	'	'
Corporate and Unallocated Segment [Member]	'	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'	'
Total assets	$3,446,011	$3,318,765	$3,318,765	'	'

Note_18_Business_Segments_Deta2

Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	$5,726,754	$5,350,310	$3,174,748
UNITED STATES	'	'	'
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	4,034,771	3,699,258	2,896,793
GERMANY	'	'	'
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	308,398	333,662	277,955
DENMARK	'	'	'
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	1,049,254	943,507	'
Other European Countries [Member]	'	'	'
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	334,331	373,883	'
Total Assets Foreign Countries [Member]	'	'	'
Note 18 - Business Segments (Details) - Property, Plant and Equipment, Net of Accumulated Depreciation, by Geographic Location [Line Items]	'	'	'
Property, plant and equipment, net	$1,691,983	$1,651,052	$277,955

Note_18_Business_Segments_Deta3

Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2011
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	$57,108,231	$49,940,525	$49,940,525	$37,360,867	$37,360,867
UNITED STATES	'	'	'	'	'
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	19,052,295	'	17,973,487	'	16,297,487
Europe [Member]	'	'	'	'	'
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	23,966,303	'	18,744,215	'	8,654,088
Asia [Member]	'	'	'	'	'
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	10,480,719	'	9,591,071	'	8,237,348
Other Region [Member]	'	'	'	'	'
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	3,608,914	'	3,631,752	'	4,171,944
Total Foreign Sales [Member]	'	'	'	'	'
Note 18 - Business Segments (Details) - Total Sales, Based Upon the Country to Which Sales to External Customers Were Made [Line Items]	'	'	'	'	'
Total sales	$38,055,936	'	$31,967,038	'	$21,063,380

Schedule_II_Valuation_and_Qual1

Schedule II - Valuation and Qualifying Accounts (Details) - Valuation Allowance (Allowance for Doubtful Accounts And Sales Returns [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts And Sales Returns [Member]	'	'	'
Financing Receivable, Allowance for Credit Losses [Line Items]	'	'	'
Balance at Beginning of Year	$303,839	$150,921	$183,291
Charged to Costs and Expenses	155,698	257,310	16,653
Deductions	144,120	104,392	49,023
Balance at End of Year	$315,417	$303,839	$150,921