After sales service maximum period.

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- Definition

After sales service minimum period.

+ References

No definition available.

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- Definition

Diluted net income per share.

+ References

No definition available.

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- Definition

Entity wide accounts receivable major customer percentage.

+ References

No definition available.

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- Definition

Entity wide revenue major customer number.

+ References

No definition available.

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- Definition

Extended warranty period after purchase of product.

+ References

No definition available.

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- Definition

Minimum percentage used for significance of major customer.

+ References

No definition available.

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- Definition

Standard warranty period after purchase of product.

+ References

No definition available.

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- Definition

Warranty period after purchase of product.

+ References

No definition available.

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Antidilution

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 171

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 40

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section 50

-Paragraph 1

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-Name Statement of Financial Accounting Standard (FAS)

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-Paragraph 13, 14

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response)

-URI http://asc.fasb.org/extlink&oid=6600647&loc=d3e214044-122780

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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- Definition

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

+ References

No definition available.

+ Details

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

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-Topic 360

-SubTopic 10

-Section 45

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-Paragraph 27, 28, 29, 30

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

+ References

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The Company and Summary of Significant Accounting Policies (Details Textual) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012 Customer	Jun. 30, 2011 Customer	Jun. 30, 2012 Customer	Jun. 30, 2011 Customer	Dec. 31, 2011
Segment Reporting Information [Line Items]
Deferred revenue	$ 500,000		$ 500,000		$ 300,000
Company and Summary of Significant Accounting Policies (Textual) [Abstract]
Number of customer outside of the united states	0	0	0	0
Minimum percentage used for significance of major customer	10.00%	10.00%	10.00%	10.00%
Diluted net income per share	5,255,267	7,031,017	6,215,722	7,015,738
Antidilutive shares not included in computation of earnings per common share	91,100	0	318,750	0
After sales service minimum period			1 year
After sales service maximum period			5 years
Extended warranty period			4 years
Standard Warranty Period			1 year
Warranty period			90 days
Impairment charges associated with its Protector product line	0	1,350,504	0	1,350,504
Write down/disposal of property and equipment		747,000		757,000
Extended product warrant plan [Member]
Segment Reporting Information [Line Items]
Deferred revenue	$ 8,500,000		$ 8,500,000		$ 7,500,000
Distributor One [Member]
Segment Reporting Information [Line Items]
Percentage of total net sales by major customer	24.00%	15.00%	19.00%	12.00%
Percentage of accounts receivable	30.00%		30.00%		13.00%
Distributor Two [Member]
Segment Reporting Information [Line Items]
Percentage of total net sales by major customer		11.00%
Percentage of accounts receivable	0.00%		0.00%		13.00%