Axon Enterprise (AXON) 10-Q5 Nov 132013 Q3 Quarterly reportFinancial data

Company Profile

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
Document and Entity Information	Sep. 30, 2013	Oct. 25, 2013
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-13	'
Document Fiscal Year Focus	'2013	'
Document Fiscal Period Focus	'Q3	'
Entity Registrant Name	'TASER INTERNATIONAL INC	'
Entity Central Index Key	'0001069183	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	51,863,702

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Current Assets:	'	'
Cash and cash equivalents	$35,005,494	$36,126,791
Short-term investments	8,751,409	1,680,958
Accounts and notes receivable, net of allowance of $200,000 as of September 30, 2013 and December 31, 2012	20,093,295	18,101,240
Inventory, net	12,289,360	10,993,209
Prepaid expenses and other current assets	4,859,631	2,754,331
Deferred income tax assets, net	9,450,523	9,395,987
Total current assets	90,449,712	79,052,516
Property and equipment, net	19,347,416	21,952,201
Deferred income tax assets, net	10,397,208	11,605,812
Intangible assets, net	3,360,355	3,317,169
Long-term investments	4,580,049	'
Other assets	357,512	308,553
Total assets	128,492,252	116,236,251
Current Liabilities:	'	'
Accounts payable	5,112,997	6,222,904
Accrued liabilities	8,180,852	7,065,085
Current portion of deferred revenue	6,317,899	4,287,305
Customer deposits	1,077,622	500,018
Current portion of capital lease payable	35,545	33,947
Total current liabilities	20,724,915	18,109,259
Deferred revenue, net of current portion	12,302,510	7,835,767
Liability for unrecorded tax benefits	3,074,447	2,902,896
Other long-term liabilities	169,116	'
Long-term portion of capital lease payable	76,423	103,283
Total liabilities	36,347,411	28,951,205
Commitments and Contingencies	'	'
Stockholders' Equity	'	'
Preferred stock, $0.00001 par value per share; 25 million shares authorized; no shares at September 30, 2013 and December 31, 2012	'	'
Common stock, $0.00001 par value per share; 200 million shares authorized; 51,838,855 and 52,770,392 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively	683	661
Additional paid-in capital	128,623,101	111,661,393
Treasury stock at cost, 16,412,755 and 13,363,789 shares at September 30, 2013 and December 31, 2012, respectively	-92,202,810	-67,203,043
Retained earnings	55,752,014	42,883,067
Accumulated other comprehensive loss	-28,147	-57,032
Total stockholders' equity	92,144,841	87,285,046
Total liabilities and stockholders' equity	$128,492,252	$116,236,251

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]	'	'
Allowance on accounts receivable	$200,000	$200,000
Preferred stock, par value	$0.00	$0.00
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	'	'
Preferred stock, shares outstanding	'	'
Common stock, par value	$0.00	$0.00
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	51,838,855	52,770,392
Common stock, shares outstanding	51,838,855	52,770,392
Treasury stock, shares	16,412,755	13,363,789

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations and Comprehensive Income (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income Statement [Abstract]	'	'	'	'
Net sales	$35,196,822	$28,772,956	$97,806,271	$82,636,791
Cost of products sold and services delivered	13,100,817	11,969,944	37,516,899	34,090,148
Gross margin	22,096,005	16,803,012	60,289,372	48,546,643
Sales, general and administrative expenses	12,775,980	9,539,996	34,898,005	26,798,629
Research and development expenses	2,439,812	1,985,701	6,444,432	6,156,751
Litigation judgment recovery	'	'	'	-2,200,000
Income from operations	6,880,213	5,277,315	18,946,935	17,791,263
Interest and other income (expense), net	34,891	11,418	30,807	25,545
Income before provision for income taxes	6,915,104	5,288,733	18,977,742	17,816,808
Provision for income taxes	1,801,512	1,611,861	6,108,795	6,893,872
Net income	5,113,592	3,676,872	12,868,947	10,922,936
Income per common and common equivalent shares	'	'	'	'
Basic	$0.10	$0.07	$0.25	$0.19
Diluted	$0.10	$0.07	$0.24	$0.19
Weighted average number of common and common equivalent shares outstanding	'	'	'	'
Basic	51,341,785	52,509,068	51,727,197	57,997,341
Diluted	53,320,918	53,106,325	53,643,803	58,482,833
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME	'	'	'	'
Net income	5,113,592	3,676,872	12,868,947	10,922,936
Foreign currency translation adjustments	92,306	25,863	28,885	5,316
Comprehensive income	$5,205,898	$3,702,735	$12,897,832	$10,928,252

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	9 Months Ended
Condensed Consolidated Statements of Cash Flows (USD $)	Sep. 30, 2013	Sep. 30, 2012
Cash Flows from Operating Activities:	'	'
Net income	$12,868,947	$10,922,936
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Depreciation and amortization	4,036,337	5,113,989
(Gain) loss on write down / disposal of property and equipment, net	-29,160	179,533
Loss on disposal of intangibles	112,980	125,605
Bond premium amortization	174,255	27,977
Provision (recovery) for doubtful accounts	1,711	-124,519
Provision for excess and obsolete inventory	279,184	236,819
Provision for warranty	643,674	265,140
Stock-based compensation expense	2,905,635	2,197,050
Litigation judgment recovery	'	-2,200,000
Deferred income taxes	5,211,841	2,886,003
Provision for unrecognized tax benefits	171,551	224,152
Excess tax benefit from stock-based compensation	-4,057,773	'
Change in assets and liabilities:	'	'
Accounts and notes receivable	-1,993,766	-2,646,621
Inventory	-1,575,335	817,110
Prepaids and other assets	-2,242,234	-217,426
Accounts payable and accrued liabilities	-496,274	2,942,577
Deferred revenue	6,497,337	2,593,512
Customer deposits	577,604	-85,674
Net cash provided by operating activities	23,086,514	23,258,163
Cash Flows from Investing Activities:	'	'
Purchases of investments	-18,449,755	-6,235,399
Proceeds from call / maturity of investments	6,625,000	8,137,561
Purchases of property and equipment	-1,174,420	-887,609
Proceeds from disposal of fixed assets	33,909	'
Purchases of intangible assets	-271,144	-337,863
Net cash provided by (used in) investing activities	-13,236,410	676,690
Cash Flows from Financing Activities:	'	'
Repurchase of common stock	-24,999,767	-19,995,950
Proceeds from options exercised	10,219,289	730,473
Payroll tax payments for net-settled stock awards	-220,967	'
Excess tax benefit from stock-based compensation	4,057,773	'
Payments on capital lease obligation	-25,262	'
Net cash used in financing activities	-10,968,934	-19,265,477
Effect of exchange rate change on cash and cash equivalents	-2,467	-4,398
Net increase (decrease) in cash and cash equivalents	-1,121,297	4,664,978
Cash and cash equivalents, beginning of period	36,126,791	21,300,733
Cash and cash equivalents, end of period	35,005,494	25,965,711
Supplemental Disclosure:	'	'
Cash paid for income taxes-net	2,426,978	864,461
Non-Cash Transactions:	'	'
Property and equipment purchases in accounts payable	$58,928	$34,168

Organization_and_Summary_of_Si

Organization and Summary of Significant Accounting Policies	9 Months Ended
Organization and Summary of Significant Accounting Policies	Sep. 30, 2013
Accounting Policies [Abstract]	'
Organization and Summary of Significant Accounting Policies	'
	1. Organization and Summary of Significant Accounting Policies
	TASER International, Inc. (“TASER” or the “Company”) is a developer and manufacturer of advanced conducted electrical weapons (“CEWs”) and other electronic weapons designed for use in law enforcement, federal, military, corrections, private security and personal defense. In addition, the Company has developed full technology solutions for the capture, storage, management, sharing and analysis of video/audio evidence as well as other tactical capabilities for use in law enforcement. The Company sells its products worldwide through its direct sales force, distribution partners, online store and third-party resellers. The Company was incorporated in Arizona in September 1993, and reincorporated in Delaware in January 2001. The Company’s corporate headquarters and manufacturing facilities are located in Scottsdale, Arizona. The Company’s software development division facilities are located in Santa Barbara, California and Bellevue, Washington.
	The accompanying consolidated financial statements include the accounts of the Company, and its wholly owned subsidiary, TASER International Europe SE (“TASER Europe”). TASER Europe was established in 2009 to facilitate sales and provide customer service to our customers in the European region. All material intercompany accounts, transactions, and profits have been eliminated.
	a. Basis of presentation, preparation and use of estimates
	These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“US GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2012, as filed on Form 10-K. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state our financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2012. The results of operations for the three and nine months ended September 30, 2013 and 2012, are not necessarily indicative of the results to be expected for the full year (or any other period). Certain amounts have been reclassified to conform to the current-year presentation.
	The preparation of these condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these consolidated financial statements include allowances for doubtful accounts receivable, inventory valuation reserves, product warranty reserves, valuations of long-lived assets, deferred income taxes and uncertain tax positions, stock-based compensation, contingencies and accrued litigation expenses. Actual results could differ from those estimates.
	b. Segment information
	The Company is comprised of two reportable segments: the sale of CEWs, accessories and other products and services (the “TASER Weapons segment”); and the Video business which includes the TASER Cam, AXON Video products and EVIDENCE.com (the “EVIDENCE.com & Video segment”). Reportable segments are determined based on discrete financial information reviewed by the Company’s Chief Executive Officer who is the chief operating decision maker (the “CODM”) for the Company. The Company organizes and reviews operations based on products and services, and currently there are no operating business segments that are aggregated. The Company performs an annual analysis of its reportable segments. Additional information related to the Company’s segments is summarized in Note 12.

	c. Geographic information and major customers
	For the three and nine months ended September 30, 2013 and 2012, net sales by geographic area were as follows (dollars in thousands):


		Three Months Ended September 30,											Nine Months Ended September 30,
		2013						2012					2013				2012
	United States	$	31,483			89	%	$	23,335		81	%	$	86,036	88	%	$	68,341	83	%
	Other Countries		3,714			11			5,438		19			11,770	12			14,296	17

	Total	$	35,197			100	%	$	28,773		100	%	$	97,806	100	%	$	82,637	100	%

	Sales to customers outside of the United States are typically denominated in U.S. dollars and are attributed to each country based on the shipping address of the distributor or customer. For the three and nine months ended September 30, 2013 and 2012, no individual country outside of the United States represented greater than 10% of total net sales. Sales in the international market generally are larger and occur more intermittently than in the domestic market due to the profile of the customer.
	For the three months ended September 30, 2013, one distributor represented approximately 12.2% of total net sales. In the three months ended September 30, 2012, one distributor represented approximately 10.6% of total net sales. For the nine months ended September 30, 2013, one distributor represented approximately 12.1% of total net sales. For the nine months ended September 30, 2012, one distributor represented approximately 14.3% of total net sales. At September 30, 2013, the Company had receivables from four customers comprising approximately 16.5%, 13.9%, 10.9% and 10.4% of its aggregate accounts receivable balance, respectively. At December 31, 2012, the Company had a trade note receivable from one unaffiliated customer comprising 17.2% of the aggregate accounts receivable balance.
	d. Income per common share
	Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the periods presented. Diluted income per share is calculated based on the weighted average number of common shares outstanding for the period plus the dilutive effect of stock options and restricted stock units using the treasury stock method. The calculation of the weighted average number of shares outstanding and income per share are as follows:


		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013		2012
	Numerator for basic and diluted earnings per share:
	Net income	$	5,113,592		$	3,676,872		$	12,868,947	$	10,922,936

	Denominator:
	Weighted average shares outstanding—basic		51,341,785			52,509,068			51,727,197		57,997,341
	Dilutive effect of stock-based awards		1,979,133			597,257			1,916,606		485,492

	Diluted weighted average shares outstanding		53,320,918			53,106,325			53,643,803		58,482,833

	Anti-dilutive stock-based awards excluded		565,099			4,732,366			898,230		5,261,887

	Net income per common share:
	Basic	$	0.1		$	0.07		$	0.25	$	0.19
	Diluted	$	0.1		$	0.07		$	0.24	$	0.19
	e. Revenue recognition
	The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, title has transferred, the price is fixed and collectability is reasonably assured. Revenue arrangements with multiple deliverables are divided into separate units and revenue is allocated using the relative selling price method based upon vendor-specific objective evidence of selling price or third-party evidence of the selling prices if vendor-specific objective evidence of selling prices does not exist. If neither vendor-specific objective evidence nor third-party evidence exists, management uses its best estimate of selling price.

	The Company sells its EVIDENCE.com & Video segment products separately, but in most instances the Company’s AXON equipment and EVIDENCE.com software-as-a-service are sold together. In these instances, customers typically purchase and pay for the AXON equipment and EVIDENCE.com services in advance, with the AXON equipment representing a deliverable that is provided to the customer at the time of sale, and EVIDENCE.com services provided over a specified service term, which has typically ranged from one to five years. The Company recognizes revenue for the AXON equipment at the time of the sale consistent with the discussion of multiple deliverable arrangements above. Revenue for EVIDENCE.com service is deferred at the time of the sale and recognized over the service period. At September 30, 2013 and December 31, 2012, approximately $3.7 million and $1.3 million of EVIDENCE.com revenue was deferred, respectively, and are being recognized over the applicable service terms.
	The Company offers customers the right to purchase extended warranties that include additional services and coverage beyond the limited warranty for certain products. Revenue for extended warranty purchases is deferred at the time of sale and recognized over the warranty period commencing on the date of sale. Extended warranties range from one to five years. At September 30, 2013 and December 31, 2012, approximately $14.5 million and $10.8 million were deferred under this program, respectively.
	Certain of the Company’s customers are charged shipping fees, which are recorded as a component of net sales. Sales tax collected on sales is netted against government remittances and thus, recorded on a net basis, with no income statement impact. Training revenue is recorded as the training is provided.
	f. Warranty costs
	The Company warrants its CEWs, StrikeLight, AXON cameras and Evidence Transfer Manager (“ETM”) from manufacturing defects on a limited basis for a period of one year after purchase and thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold and services delivered when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to returns and warranty costs on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure that could result in larger than anticipated returns from customers. The accrued warranty liability expense is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. Costs related to extended warranties are charged to cost of products sold and services delivered when incurred.
	The reserve for warranty returns is included in accrued liabilities on the condensed consolidated balance sheets. The nine months ended September 30, 2013, includes additional expense due to a change in estimate for the AXON flex on-officer camera based on the analysis of return data for their first year of sales in addition to warranty expense relating to the launch of the X26P in the first quarter of 2013. Additional expense was also incurred due to the launch of the AXON body camera in the third quarter of 2013. The warranty expense for the nine months ended September 30, 2012, is net of a recovery due to a change in estimate for the X2 CEW warranty reserves based on the analysis of return data for their first year of sales. Changes in the Company’s estimated product warranty liabilities are as follows:

		Nine Months Ended
		September 30,
		2013			2012
	Balance, January 1,	$	483,721		$	427,459
	Utilization of accrual		(419,351	)		(312,570	)
	Warranty expense		643,674			265,140

	Balance, September 30,	$	708,044		$	380,029

	g. Fair value of financial instruments
The Company uses the fair value framework, that prioritizes the inputs to valuation techniques, for measuring financial assets and liabilities measured on a recurring basis and for non-financial assets and liabilities when these items are remeasured. Under fair value measurement U.S. GAAP accounting standards, fair value is considered to be the exchange price in an orderly transaction between market participants to sell an asset or transfer a liability at the measurement date. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. The Company categorizes each of its fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:

	•	Level 1 – Unadjusted quoted market prices in active markets for identical assets or liabilities.

	•	Level 2 – Quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active.

	•	Level 3 – Unobservable inputs that are not corroborated by market data.
At September 30, 2013, the Company held cash, cash equivalents, and investments, which are typically comprised of money market mutual funds, certificates of deposit and high quality municipal and corporate bonds. Money market mutual funds are recorded at market value and are valued using Level 1 valuation techniques. All other instruments are recorded at amortized cost on the balance sheet based on management’s ability and intent to hold these instruments to maturity. The Company’s financial instruments also include accounts and notes receivable, accounts payable and accrued liabilities. Due to the short-term nature of these instruments, their fair values approximate their carrying values on the balance sheet.
h. Impairment of Long-Lived Assets
Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and identifiable intangible assets may warrant revision or that the remaining balance of these assets may not be recoverable. Such circumstances could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way products are branded and marketed. In performing the review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows. No impairment losses were recorded in the three or nine months ended September 30, 2013 and 2012.
i. Recently issued accounting guidance
In July 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update (“ASU”) to standardize the balance sheet presentation of unrecognized tax benefits. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. The new guidance is effective for fiscal years beginning after December 15, 2013, and early adoption is allowed. The adoption of this guidance will result in an immaterial reclassification on the Company’s consolidated balance sheet.
In February 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update (“ASU”) requiring entities to provide information about the amounts reclassified out of accumulated other comprehensive income (“OCI”) by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated OCI by the respective line items of net income, but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts. The new guidance was effective for fiscal years beginning after December 15, 2012. The amendments do not change the current requirements for reporting net income or OCI in financial statements. The Company adopted this guidance during the first quarter of 2013. The adoption did not have an impact on the Company’s consolidated financial statements.
In July 2012, the FASB issued an ASU to simplify the impairment testing for indefinite-lived intangibles by allowing an entity to first assess qualitative factors, considering the totality of events and circumstances, to determine that it is more likely than not that the carrying amount of a reporting unit is less than its fair value. If it is not, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test. The new guidance was effective for annual and interim impairment tests for fiscal years beginning after September 15, 2012. The Company adopted this guidance during the first quarter of 2013. The adoption did not have a material impact on the Company’s consolidated financial statements.

Cash_Cash_Equivalents_and_Inve

Cash, Cash Equivalents, and Investments	9 Months Ended
Cash, Cash Equivalents, and Investments	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Cash, Cash Equivalents, and Investments	'
	2. Cash, cash equivalents, and investments
	Cash and cash equivalents include funds on hand and highly liquid investments purchased with an initial maturity of three months or less. Short-term investments include securities with an expected maturity date within one year of the balance sheet date that do not meet the definition of cash equivalent, and long-term investments are securities with an expected maturity date greater than one year. The Company typically invests in municipal and corporate bonds, as well as certificates of deposits, which, based on management’s intent and ability, are classified as held to maturity investments and are recorded at amortized cost. As of September 30, 2013, the Company believes that the gross unrealized losses on its investments are due to interest rate fluctuations. These investments are expected to be redeemed at par value, and because the Company will hold these investments to maturity, the Company does not consider these investments to be other than temporarily impaired at September 30, 2013.

	The following is a summary of cash, cash equivalents and held-to-maturity investments by type at September 30, 2013 and December 31, 2012:


		September 30, 2013									December 31, 2012
				Gross		Gross							Gross		Gross
		Amortized		Unrealized		Unrealized					Amortized		Unrealized		Unrealized
		Cost		Gains		Losses			Fair Value		Cost		Gains		Losses			Fair Value
	Cash and money market funds	$	34,905,493	$	—	$	—		$	34,905,493	$	36,126,791	$	—	$	—		$	36,126,791
	State and municipal obligations		8,587,008		7,784		(9	)		8,594,783		—		—		—			—
	Corporate bonds		2,962,150		—		(8,557	)		2,953,593		958		—		—			958
	Certificates of deposit		1,882,301		—		(40	)		1,882,261		1,680,000		—		(1,488	)		1,678,512

	Total cash, cash equivalents and investments	$	48,336,952	$	7,784	$	(8,606	)	$	48,336,130	$	37,807,749	$	—	$	(1,488	)	$	37,806,261

	The following table summarizes the classification of cash, cash equivalents and investments in the accompanying balance sheet:


		September 30,		December 31,
		2013		2012
	Cash	$	32,051,501	$	19,811,735
	Cash equivalents		2,953,993		16,315,056

	Total cash and cash equivalents		35,005,494		36,126,791
	Short-term investments		8,751,409		1,680,958
	Long-term investments		4,580,049		—

	Total cash, cash equivalents and investments	$	48,336,952	$	37,807,749

	The following table summarizes the amortized cost and fair value of the short-term and long-term investments held by the Company at September 30, 2013 by contractual maturity:


		Amortized Cost		Fair Value
	Due in less than one year	$	8,751,409	$	8,756,782
	Due after one year, through two years		4,580,049		4,573,855

	Total short-term and long-term investments	$	13,331,458	$	13,330,637

Inventory

Inventory	9 Months Ended
Inventory	Sep. 30, 2013
Inventory Disclosure [Abstract]	'
Inventory	'
	3. Inventory
	Inventories are stated at the lower of cost or market. Cost is determined using the weighted average cost of raw materials, which approximates the first-in, first-out (“FIFO”) method, and includes allocations of manufacturing labor and overhead. Provisions are made to reduce potentially excess, obsolete or slow-moving inventories to their net realizable value. The reserve for excess and obsolete inventory decreased to $0.7 million at September 30, 2013, compared to $2.3 million at December 31, 2012. This decrease is attributable primarily to the disposal of the majority of the X3 CEW inventory that had been previously reserved. Inventories as of September 30, 2013 and December 31, 2012, consisted of the following:


		September 30,			December 31,
		2013			2012
	Raw materials	$	9,257,735		$	9,689,172
	Work-in-process		46,348			131,492
	Finished goods		3,681,059			3,492,167
	Reserve for excess and obsolete inventory		(695,782	)		(2,319,622	)

	Total inventory	$	12,289,360		$	10,993,209

Intangible_Assets

Intangible Assets	9 Months Ended
Intangible Assets	Sep. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Intangible Assets	'
	4. Intangible assets
	Intangible assets consisted of the following at September 30, 2013 and December 31, 2012:


				September 30, 2013							December 31, 2012
				Gross					Net
				Carrying		Accumulated			Carrying		Gross Carrying		Accumulated			Net Carrying
		Useful Life		Amount		Amortization			Amount		Amount		Amortization			Amount
	Amortized:
	Domain names		5 Years	$	139,431	$	(112,763	)	$	26,668	$	139,431	$	(103,840	)	$	35,591
	Issued patents		4 to 15 Years		1,559,484		(429,165	)		1,130,319		1,528,955		(362,032	)		1,166,923
	Issued trademarks		9 to 11 Years		421,789		(134,719	)		287,070		362,106		(101,561	)		260,545

	Total amortized				2,120,704		(676,647	)		1,444,057		2,030,492		(567,433	)		1,463,059

	Not amortized:
	TASER trademark				900,000					900,000		900,000					900,000
	Patents and trademarks pending				1,016,298					1,016,298		954,110					954,110

	Total not amortized				1,916,298					1,916,298		1,854,110					1,854,110

	Total intangible assets			$	4,037,002	$	(676,647	)	$	3,360,355	$	3,884,602	$	(567,433	)	$	3,317,169

	Amortization expense relative to intangible assets for the three and nine months ended September 30, 2013 was approximately $39,000 and $115,000, respectively. Amortization expense relative to intangible assets for the three and nine months ended September 30, 2012 was approximately $36,000 and $104,000, respectively.
	Estimated amortization expense of intangible assets for the remaining three months of 2013, the next five years ended December 31, and thereafter is as follows:


	2013 (remaining three months)	$	39,434
	2014		156,818
	2015		148,068
	2016		140,997
	2017		137,424
	2018		127,828
	Thereafter		693,488

	Total	$	1,444,057

Accrued_Liabilities

Accrued Liabilities	9 Months Ended
Accrued Liabilities	Sep. 30, 2013
Payables And Accruals [Abstract]	'
Accrued Liabilities	'
	5. Accrued liabilities
	Accrued liabilities consisted of the following at September 30, 2013 and December 31, 2012:


		September 30,		December 31,
		2013		2012
	Accrued salaries and benefits	$	1,836,857	$	2,416,268
	Accrued judgments and reserves		3,050,000		2,090,000
	Accrued warranty expense		708,044		483,721
	Accrued income and other taxes		115,832		295,595
	Other accrued expenses		2,470,119		1,779,501

	Accrued liabilities	$	8,180,852	$	7,065,085

Income_Taxes

Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	6. Income taxes
	Deferred Tax Assets
	The net deferred income tax assets at September 30, 2013, include capitalized research and development costs, research and development tax credits, non-qualified stock-based compensation expense, deferred warranty revenue, warranty and inventory reserves, accrued vacation, and other items, partially offset by accelerated depreciation expense. The Company’s total current and long-term net deferred tax assets at September 30, 2013 are $19.8 million.
	In preparing the Company’s condensed consolidated financial statements, management assesses the likelihood that its deferred tax assets will be realized from future taxable income. In evaluating the Company’s ability to recover its deferred income tax assets, management considers all available positive and negative evidence, including its operating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction by jurisdiction basis. A valuation allowance is established if it is determined that it is more likely than not that some portion or all of the net deferred tax assets will not be realized. Management exercises significant judgment in determining its provisions for income taxes, its deferred tax assets and liabilities, and its future taxable income for purposes of assessing its ability to utilize any future tax benefit from its deferred tax assets. Although management believes that its tax estimates are reasonable, the ultimate tax determination involves significant judgments that could become subject to audit by tax authorities in the ordinary course of business, as well as the generation of sufficient future taxable income. Management has determined that it is more likely than not that future sales and profitability will allow for the utilization of the deferred tax assets. However, the deferred tax asset could be reduced or a valuation allowance could be recorded in the near-term if estimates of future taxable income during the carry forward period change.
	The Company has completed research and development tax credit studies which identified approximately $7.8 million in tax credits for federal, Arizona and California income tax purposes related to the 2003 through 2013 tax years, net of the federal benefit on the Arizona and California R&D tax credits. Management has made the determination that it is more likely than not that the full benefit of the R&D tax credit will not be sustained on examination and recorded a liability for unrecognized tax benefits of $2.9 million as of September 30, 2013. In addition, management has accrued approximately $0.2 million for estimated uncertain tax positions related to certain state income tax liabilities. As of September 30, 2013, management does not expect the amount of the unrecognized tax benefit liability to increase or decrease significantly within the next 12 months. Should the unrecognized tax benefit of $3.1 million be recognized, the Company’s effective tax rate would be favorably impacted.
	Effective Tax Rate
	The Company’s overall effective tax rate for the nine months ended September 30, 2013 was 32.2%, which is below the federal statutory rate due to deductions related to disqualifying dispositions of Incentive Stock Options (“ISOs”) during the year, a credit for domestic production activities deduction, and a favorable 2012 return to provision adjustment taken in the third quarter of 2013. When an employee exercises ISOs and sells the related stock prior to the mandatory holding period, the associated expense becomes a reduction to the Company’s taxable income and represents a permanent benefit in the tax rate. The effect of these items on the federal tax rate was partially offset by the impact of state taxes and non-deductible expenses for items such as ISO book expense, meals and entertainment expense and lobbying fees. The Company’s estimated effective tax rate before discrete adjustments for the full year of 2013 is approximately 38.2%.

Stockholders_Equity

Stockholders' Equity	9 Months Ended
Stockholders' Equity	Sep. 30, 2013
Equity [Abstract]	'
Stockholders' Equity	'
	7. Stockholders’ equity
	Stock Option Activity
	At September 30, 2013, the Company had five stock-based compensation plans, four of which are described more fully in the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012. On May 23, 2013, the Company’s stockholders approved a new stock incentive plan authorizing an additional 1.6 million shares for issuance under the Company’s Plans. There are approximately 2.3 million shares available for grant under the plans as of September 30, 2013.
	Performance-based stock awards
	The Company has issued performance-based stock options and performance-based restricted stock units (“RSUs”), the vesting of which is contingent upon the achievement of certain performance criteria related to the operating performance of the Company as well as successful and timely development and market acceptance of future product introductions. In addition, certain of the performance RSUs have additional service requirements subsequent to the achievement of the performance criteria. Compensation expense is recognized over the implicit service period (the longer of the period the performance condition is expected to be achieved or the required service period) based on management’s estimate of the probability of the performance criteria being satisfied, adjusted at each balance sheet date.

	Restricted Stock Units
	The following table summarizes RSU activity for the nine months ended September 30, 2013:


					Weighted
					Average
					Grant-
		Number of			Date Fair		Aggregate
		Units			Value		Intrinsic Value
	Units outstanding, beginning of period		582,212		$	5.42
	Granted		736,479			8.98
	Released		(158,700	)		5.39
	Forfeited		(44,814	)		7.24

	Units outstanding, end of period		1,115,177			7.71	$	16,593,834

	Aggregate intrinsic value represents the Company’s closing stock price on the last trading day of the period, which was $14.88 per share, multiplied by the number of RSUs. As of September 30, 2013, there was $5.4 million in unrecognized compensation cost related to RSUs granted under our stock plans. We expect to recognize this cost over a weighted average period of 29 months. RSUs are released when vesting requirements are met.
	In 2013, the Company granted approximately 149,000 performance-based RSUs (included in the table above). Of the approximately 227,000 performance-based RSUs outstanding as of September 30, 2013, the performance criteria have been met for approximately 85,000 units which will vest upon the completion of service requirements.
	Stock Options
	The following table summarizes stock option activity for the nine months ended September 30, 2013:


							Average
					Weighted		Remaining
		Number of			Average		Contractual		Aggregate
		options			Exercise Price		Life (years)		Intrinsic Value
	Options outstanding, beginning of period		6,321,076		$	6.05
	Granted		—
	Exercised		(1,985,596	)		5.14
	Expired / forfeited		(132,288	)		5.72

	Options outstanding,end of period		4,203,192			6.49		4.51	$	35,702,302

	Exercisable at September 30, 2013		3,754,714			6.71		4.31		31,097,408

	Expected to vest after September 30, 2013		380,339			4.6		6.19		3,908,919


	Aggregate intrinsic value represents the difference between the exercise price of the underlying stock option awards and the closing market price of the Company’s common stock of $14.88 on September 30, 2013. The aggregate intrinsic value of options exercised for the three and nine months ended September 30, 2013 was approximately $5.3 million and $9.1 million, respectively. The aggregate intrinsic value of options exercised for the three and nine months ended September 30, 2012 was approximately $0.7 million and $1.6 million, respectively. As of September 30, 2013, total unrecognized stock-based compensation expense related to unvested stock options was approximately $0.3 million, which is expected to be recognized over a remaining weighted average period of approximately 9 months. Options expected to vest are presented net of expected forfeitures.
	Included in the table above is approximately 0.4 million of performance-based options, including approximately 0.1 million for which performance conditions have been met. At September 30, 2013, there are approximately 0.3 million performance-based options outstanding for which the performance criteria have yet to be met. There is approximately $47,000 of remaining expense to be recognized relative to these performance based options as of September 30, 2013.
	Share-Based Compensation Expense
	The fair value of RSUs is estimated as the closing price of our common stock on the date of grant. When granted, the Company calculates the fair value of stock options using the Black-Scholes-Merton option pricing valuation model, which incorporates various assumptions including volatility, expected life and risk-free interest rates. No options were awarded during the nine month periods ended September 30, 2013 or September 30, 2012. The estimated fair value of stock-based compensation awards is amortized to expense on a straight-line basis over the service periods. As stock-based compensation expense recognized is based on awards ultimately expected to vest, it is reduced for estimated forfeitures. Forfeitures are estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company’s forfeiture rate was calculated based on its historical experience of awards which ultimately vested.
	Share-based compensation was classified as follows:


		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2013			2012		2013		2012
	Cost of products sold	$	49,632		$	38,085	$	133,500	$	133,977
	Sales, general and administrative expenses		735,433			657,870		2,292,672		1,631,234
	Research and development expenses		177,929			153,433		479,463		431,839

	Total share-based compensation	$	962,994		$	849,388	$	2,905,635	$	2,197,050

	Total share-based compensation expense recognized in the statements of operations for the three months ended September 30, 2013 and 2012, included approximately $22,000 and $98,000, respectively, related to incentive stock options for which no tax benefit is recognized. Total share-based compensation expense recognized in the statements of operations for the nine months ended September 30, 2013 and 2012, included approximately $85,000 and $0.3 million, respectively, related to incentive stock options for which no tax benefit is recognized.
	Issuer Purchases of Equity Securities
	In February 2013, the Company announced that TASER’s Board of Directors authorized a stock repurchase program to acquire up to $25.0 million of the Company’s outstanding common stock subject to stock market conditions and corporate considerations. Under this program, which was completed in the second quarter of 2013, the Company purchased 3,048,966 common shares under this program for a total cost of approximately $25.0 million, or a weighted average cost of $8.20 per share. The weighted average cost includes the average price paid per share of $8.17, plus any applicable administrative costs for the transaction. The Company completed this buyback in the second quarter of 2013 and does not currently have an open stock repurchase program.

Line_of_Credit

Line of Credit	9 Months Ended
Line of Credit	Sep. 30, 2013
Debt Disclosure [Abstract]	'
Line of Credit	'
	8. Line of credit
	The Company has a $10.0 million revolving line of credit with a domestic bank. As of September 30, 2013, the Company had letters of credit outstanding of $0.6 million under the facility and available borrowing of $9.4 million. The line is secured by the Company’s accounts receivable and inventory, and bears interest at varying rates (currently LIBOR plus 1.5% to prime). The line of credit matures on June 30, 2015, and requires monthly payments of interest only. At September 30, 2013 and December 31, 2012, there were no borrowings under the line. The Company’s agreement with the bank requires it to comply with certain financial and other covenants including maintenance of minimum tangible net worth and a fixed charge coverage ratio. The ratio of total liabilities to tangible net worth can be no greater than 1:1, and the fixed charge coverage ratio can be no less than 1.25:1, based upon a trailing twelve-month period. At September 30, 2013, the Company’s tangible net worth ratio was 0.41:1 and its fixed charge coverage ratio was 3.77:1. Accordingly, the Company was in compliance with these covenants.

Commitments_and_Contingencies

Commitments and Contingencies

9 Months Ended

Sep. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

9. Commitments and contingencies

Product Litigation

The Company is currently named as a defendant in 22 lawsuits in which the plaintiffs allege either wrongful death or personal injury in situations in which a TASER CEW was used (or present) by law enforcement officers in connection with arrests or during training exercises. In addition, three other product litigation matters in which the Company is involved are currently on appeal. While the facts vary from case to case, the product liability claims are typically based on an alleged product defect resulting in injury or death, usually involving a failure to warn, and the plaintiffs are seeking monetary damages. The Company is defending each of these lawsuits vigorously and does not expect these lawsuits to individually, or in the aggregate, materially affect our business, results of operations or financial condition. Primarily as the result of one significant product liability judgment against the Company (the Turner case, see below), the Company has exhausted its insurance coverage for the 2008 insurance policy year. If the Company is unsuccessful on its appeal of the Turner case and there are material judgments, settlements or costs relating to other cases in the 2008 policy year, the Company will not have insurance coverage to offset any such payments. The information throughout this Note is current through the filing date of this Quarterly Report on Form 10-Q.

Turner (NC) lawsuit

The Turner (NC) lawsuit was tried in July 2011 and resulted in a jury verdict of $10.0 million against the Company. The Company filed post-trial motions seeking judgment as a matter of law notwithstanding the verdict and in the alternative, a new trial or alternatively, a remittitur of the jury award. Based on this verdict, the Company recorded litigation judgment expense of $3.3 million in 2011. During March 2012, the Federal District Court for the Western District of North Carolina granted the Company’s motion for remittitur and ordered the reduction of the original jury award from $10.0 million to approximately $4.4 million after offsets. On April 20, 2012, the court issued an order which adjusted the award to $5.5 million. On May 4, 2012, the court issued another order which entered judgment in the amount of $5.5 million plus costs and post-judgment interest. Based on this action by the court, the Company reversed a portion of the previously accrued litigation judgment during the year ended December 31, 2012, which resulted in a benefit of $2.2 million during the nine months ended September 30, 2012, and leaving a reserve of $1.1 million as of September 30, 2012. The Company has appealed this verdict. The appeal is fully briefed and oral argument was held on September 19, 2013. As of September 30, 2013 and December 31, 2012, the reserve related to this case remained at $1.1 million.

With respect to each of the pending lawsuits, the following table lists the name of plaintiff, the date the Company was served with process, the jurisdiction in which the case is pending, the type of claim and the status of the matter.

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Grable

8-Aug

6th Judicial Circuit Court, Pinellas County, FL

Training Injury

Discovery Phase

Koon

8-Dec

17th Judicial Circuit Court, Broward County, FL

Training Injury

Discovery Phase

Peppler

9-Apr

5th Judicial Circuit Court, Sumter City, FL

Training Injury

Discovery Phase

Derbyshire

9-Nov

Ontario, Canada Superior Court of Justice

Officer Injury

Discovery Phase

Rich

10-Feb

US District Court, NV

Wrongful Death

Trial scheduled December 2013

Thompson

10-Mar

11th Judicial Circuit Court, Miami-Dade County, FL

Suspect Injury During Arrest

Discovery Phase

Doan

10-Apr

The Queens Bench Alberta, Red Deer Judicial Dist.

Wrongful Death

Discovery Phase

Shymko

10-Dec

The Queens Bench, Winnipeg Centre, Manitoba

Wrongful Death

Pleading Phase

Juran

10-Dec

Hennepin County District Court, 4th Judicial District

Officer Injury

Discovery Phase

Wilson

11-May

US District Court, ED MO

Wrongful Death

Discovery Phase

Ramsey

12-Jan

17th Judicial Circuit Court, Broward County Circuit Court, FL

Wrongful Death

Discovery Phase

Duensing

12-Feb

US District Court, NV

Suspect Injury During Arrest

Motion Phase

Mitchell

12-Apr

US District Court, ED MI

Wrongful Death

Discovery Phase, trial scheduled June 2014

Firman

12-Apr

Ontario, Canada Superior Court of Justice

Wrongful Death

Pleading Phase

Ricks

12-May

US District Court, WD LA

Wrongful Death

Motion Phase

Wingard

12-Oct

US District Court, WD PA

Wrongful Death

Discovery Phase

Manjares

12-Nov

US District Court, ED WA

Suspect Injury During Arrest

Discovery Phase; trial scheduled July 2014

Miller

13-Jan

New Castle County Superior Court, DE

Wrongful Death

Discovery Phase

Salgado

13-Feb

US District Court, SD FL

Wrongful Death

Stayed

Armstrong

13-Apr

General Court of Justice, Superior Div, Moore County, NC

Wrongful Death

Discovery Phase

Barnes

13-Apr

US District Court, WD PA

Wrongful Death

Discovery Phase

Athetis

9-May

Maricopa County Superior Court, AZ

Wrongful Death

Dismissal Pending

In addition, other product litigation matters in which the Company is involved that are currently on appeal are listed below:

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Turner

10-Feb

US District Court, ED NC

Wrongful death

Appeal fully briefed; Oral argument held on September 19, 2013

Bachtel

11-Aug

14th Judicial District Circuit Court, Randolph County, MO

Wrongful Death

Appeal fully briefed; date for Oral Argument has not been set

Glowczenski

4-Oct

US District Court, ED NY

Wrongful death

Notice of Appeal filed Septemebr 2013; opening brief is due January 2014

Cases that were dismissed or judgment entered during the third quarter of 2013 and through the filing date of this Quarterly Report on Form 10-Q are listed in the table below. Cases that were dismissed or judgment entered in prior fiscal quarters are not included in this table.

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Glowczenski

4-Oct

US Disrict Court, ED NY

Wrongful Death

Court granted Motion for Summary Judgment in favor of TASER

McCarthy

12-Dec

US District Court, WD NC

Wrongful Death

Voluntary Dismissal

Piskura

10-May

US District Court, OH

Wrongful Death

Voluntary Dismissal

The claims, and in some instances the defense, of each of these lawsuits have been submitted to the Company’s insurance carriers that maintained insurance coverage during the applicable periods. The Company continues to maintain product liability insurance coverage with varying limits and deductibles. The following table provides information regarding the Company’s product liability insurance. Remaining insurance coverage is based on information received from the Company’s insurance provider.

Defense

Remaining

Policy Start

Policy End

Insurance

Deductible

Costs

Insurance

Active Cases and Cases on

Policy Year

Date

Coverage

Amount

Covered

Coverage

Appeal

2004

12/1/03

12/1/04

0.1

Glowczenski

2005

12/1/04

12/1/05

0.3

n/a

2006

12/1/05

12/1/06

0.3

3.7

n/a

2007

12/1/06

12/1/07

0.3

n/a

2008

12/1/07

12/15/08

0.5

—

Grable, Koon, Peppler, Rich, Turner

2009

12/15/08

12/15/09

Athetis, Derbyshire

2010

12/15/09

12/15/10

Thompson, Shymko, Doan, Juran

2011

12/15/10

12/15/11

Wilson, Bachtel

Jan - Jun 2012

12/15/11

6/25/12

Ramsey, Duensing, Mitchell, Firman, Ricks

Jul - Dec 2012

6/25/12

12/15/12

Wingard, Manjares

2013

12/15/12

12/15/13

Miller, Salgado, Barnes, Armstrong

The amount of the remaining insurance coverage for the 2008 policy year is shown based on what has actually been paid out on cases in that policy year or held for the appellate bond in Turner (NC). If the Company is not successful in its appeal related to the Turner (NC) lawsuit, the policy will be fully exhausted for that policy year and as a result, the Company will have no remaining insurance coverage for other cases relating to the 2008 policy year. See additional information related to the Turner (NC) lawsuit discussed above in this Note.

Other Litigation

In January 2011, the Company was served with a complaint in the matter of GEOTAG, Inc. v. TASER International, et. al. that was filed in the United States District Court for the Eastern District of Texas, Marshall Division, which alleges that a dealer geographical locator feature on TASER’s website infringes upon plaintiff’s US Patent No. 5,930,474. The complaint seeks a judgment of infringement, a permanent injunction against infringement, an award for damages, costs, expenses and prejudgment and post-judgment interest, and an award for enhanced damages and attorneys’ fees. TASER licensed this locator feature from a third party and has denied liability for infringement. This lawsuit is at the discovery phase and no trial date has been set.

In July 2011, the Company filed a complaint against Karbon Arms, LLC for infringement of TASER’s U.S. Patent Nos. 7,800,885 and 7,782,592 in US District Court for the District of Delaware seeking damages, injunctive relief and an award of attorneys’ fees. Karbon Arms filed a counterclaim on July 18, 2011, alleging invalidity and non-infringement of four of TASER’s patents, tortuous interference with prospective contractual relations and for false advertising under the Lanham Act. TASER thereafter filed counter-counterclaims for infringement of U.S. Patent Nos. 7,602,597 and 6,999,295. This lawsuit is in the motion phase, a Markman hearing was held, and a trial date has been set for January 2014.

In February 2012, the Company was served with a complaint in the matter of AA & Saba Consultants, Inc. v. TASER International, Inc. that was filed in the Superior Court for the County of Maricopa, Arizona, which alleges that the Company breached a contract by unilaterally terminating a distributor agreement between the Company and plaintiff without good cause. The complaint seeks an award for damages, costs, expenses and attorneys’ fees. TASER filed a counterclaim for breach of contract and fraud. This lawsuit is at the discovery phase and motions for summary judgment have been filed, with a trial date set for February 2014. The Company has made a settlement offer of $0.8 million to AA & SABA Consultants, Inc. which offer was not accepted and the offer was withdrawn. The Company has recorded the amount of the offer as an estimated liability.

General

From time to time, the Company is notified that it may be a party to a lawsuit or that a claim is being made against it. It is the Company’s policy to not disclose the specifics of any claim or threatened lawsuit until the summons and complaint are actually served on the Company. After carefully assessing the claim, and assuming we determine that we are not at fault or we disagree with the damages or relief demanded, we vigorously defend and pursue any lawsuit filed against or by the Company. Although we do not expect the outcome in any pending individual case to be material, the outcome of any litigation is inherently uncertain and there can be no assurance that any expense, liability or damages that may ultimately result from the resolution of these matters will be covered by our insurance or will not be in excess of amounts provided by insurance coverage and will not have a material adverse effect on our business, operating results or financial condition. The Company may settle a lawsuit in situations where a settlement can be obtained for nuisance value and for an amount that is expected to be less than the cost of defending a lawsuit. A small number of police officer training injury lawsuits have been settled by the Company for significantly less than the cost of litigation. As a general rule, it is the Company’s policy not to settle suspect injury or death cases. Rare exceptions have been made where the settlement economics are beneficial to the Company. On occasion, the Company’s insurance company has settled such lawsuits over the Company’s objection where the risk is over the Company’s liability insurance deductibles. Due to the confidentiality of our litigation strategy and the confidentiality agreements that are executed in the event of a settlement, the Company does not identify or comment on which specific lawsuits have been settled or the amount of any settlement.

Related_Party_Transactions

Related Party Transactions	9 Months Ended
Related Party Transactions	Sep. 30, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	10. Related party transactions
	Consulting Services
	The Company engages Mark Kroll, a member of the Board of Directors, to provide consulting services. Expenses relating to these services for the three and nine months ended September 30, 2013 were approximately $59,000 and $125,000, respectively. Expenses relating to these services for the three and nine months ended September 30, 2012 were approximately $39,000 and $141,000, respectively. At September 30, 2013 and December 31, 2012, the Company had accrued liabilities for these services of approximately $37,000 and $6,000, respectively.

Employee_Benefit_Plans

Employee Benefit Plans	9 Months Ended
Employee Benefit Plans	Sep. 30, 2013
Compensation And Retirement Disclosure [Abstract]	'
Employee Benefit Plans	'
	11. Employee benefit plans
	The Company has a defined contribution profit sharing 401(k) plan for eligible employees, which is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended. Employees are entitled to make tax-deferred contributions of up to the maximum allowed by law of their eligible compensation. In addition, during the third quarter of 2013, the Company implemented a non-qualified deferred compensation plan for certain executives, key employees and non-employee directors through which participants may elect to postpone the receipt and taxation of a portion of their compensation, including stock-based compensation, received from the Company.
	Contributions to the plans are made by both the employee and the Company. Company contributions are based on the level of employee contributions and are immediately vested. The Company’s matching contributions to the 401(k) plan for the three months and nine months ended September 30, 2013, were approximately $188,000 and $520,000, respectively. The Company’s matching contributions to the to the 401(k) plan for the three and nine months ended September 30, 2012, were approximately $131,000 and $392,000, respectively. The Company expects to make matching contributions to the non-qualified deferred compensation plan related to the three month period ended September 30, 2013, of approximately $6,000. Future matching or profit sharing contributions to the plans are at the Company’s sole discretion.

Segment_Data

Segment Data	9 Months Ended
Segment Data	Sep. 30, 2013
Segment Reporting [Abstract]	'
Segment Data	'
	12. Segment data
	The Company’s operations are comprised of two reportable segments: the sale of CEWs, accessories and other products and services, the TASER Weapons segment; and the EVIDENCE.com & Video segment, which includes the TASER Cam, AXON video products and EVIDENCE.com. The Company includes only revenues and costs directly attributable to the EVIDENCE.com & Video business in that segment. Direct costs included in EVIDENCE.com & Video segment costs are: cost of sales for both products and services, overhead allocation based on direct labor, selling expense for the segment sales team, segment product management expenses, segment trade shows and related expenses, and research and development for products included in the segment. All other costs are included in the TASER Weapons segment.

	Information relative to the Company’s reportable segments is as follows:


		Three Months Ended September 30, 2013							Three Months Ended September 30, 2012
		TASER		EVIDENCE.com					TASER			EVIDENCE.com
		Weapons		& Video			Total		Weapons			& Video			Total
	Product sales	$	31,626,484	$	3,103,781		$	34,730,265	$	27,085,180		$	1,528,347		$	28,613,527
	Service revenue		—		466,557			466,557		—			159,429			159,429

	Net sales		31,626,484		3,570,338			35,196,822		27,085,180			1,687,776			28,772,956

	Cost of products sold		10,906,999		1,896,691			12,803,690		9,673,370			1,181,906			10,855,276
	Cost of services delivered		—		297,127			297,127		—			1,114,668			1,114,668

	Gross margin		20,719,485		1,376,520			22,096,005		17,411,810			(608,798	)		16,803,012
	Sales, general & administrative		11,130,971		1,645,009			12,775,980		8,618,250			921,746			9,539,996
	Research & development		1,160,400		1,279,412			2,439,812		1,043,607			942,094			1,985,701

	Income (loss) from operations	$	8,428,114	$	(1,547,901	)	$	6,880,213	$	7,749,953		$	(2,472,638	)	$	5,277,315

	Purchases of property and equipment	$	229,965	$	105,460		$	335,425	$	217,092		$	68,215		$	285,307
	Purchases of intangible assets		66,844		2,107			68,951		76,148			9,728			85,876
	Depreciation and amortization		1,025,164		62,907			1,088,071		1,054,239			664,307			1,718,546

		Nine Months Ended September 30, 2013							Nine Months Ended September 30, 2012
		TASER		EVIDENCE.com					TASER			EVIDENCE.com
		Weapons		& Video			Total		Weapons			& Video			Total
	Product sales	$	89,901,959	$	6,853,388		$	96,755,347	$	78,774,581		$	3,464,606		$	82,239,187
	Service revenue		—		1,050,924			1,050,924		—			397,604			397,604

	Net sales		89,901,959		7,904,312			97,806,271		78,774,581			3,862,210			82,636,791

	Cost of products sold		31,534,576		4,440,236			35,974,812		28,068,676			2,712,678			30,781,354
	Cost of services delivered		—		1,542,087			1,542,087		—			3,308,794			3,308,794

	Gross margin		58,367,383		1,921,989			60,289,372		50,705,905			(2,159,262	)		48,546,643
	Sales, general & administrative		30,622,109		4,275,896			34,898,005		24,373,401			2,425,228			26,798,629
	Research & development		3,126,589		3,317,843			6,444,432		2,806,043			3,350,708			6,156,751
	Litigation judgment recovery		—		—			—		(2,200,000	)		—			(2,200,000	)

	Income (loss) from operations	$	24,618,685	$	(5,671,750	)	$	18,946,935	$	25,726,461		$	(7,935,198	)	$	17,791,263

	Purchases of property and equipment	$	827,896	$	346,524		$	1,174,420	$	530,383		$	357,226		$	887,609
	Purchases of intangible assets		260,431		10,713			271,144		322,337			15,526			337,863
	Depreciation and amortization		2,997,848		1,038,489			4,036,337		3,336,403			1,777,586			5,113,989
	The CODM does not review assets by segment as part of the financial information provided; therefore, no asset information is provided in the above table.

Subsequent_Event

Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2013
Subsequent Events [Abstract]	'
Subsequent Event	'
	13. Subsequent event
	On October 7, 2013, the Company entered into a definitive agreement to acquire Familiar, Inc. (“Familiar”) for $1.3 million in cash and 107,749 shares of common stock. The number of common shares issued as part of the acquisition was determined by dividing $1.4 million by a value of $13.33 per share. Familiar’s employees include application designers and engineers experienced in digital video management. The Familiar employees will conduct research and development initiatives for mobility technologies in law enforcement, focused specifically on new revenue opportunities within the EVIDENCE.com & Video segment. The Company will not continue to develop or market products and services previously provided by Familiar.

Organization_and_Summary_of_Si1

Organization and Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Basis of Presentation, Preparation and Use of Estimates	'
	a. Basis of presentation, preparation and use of estimates
	These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“US GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2012, as filed on Form 10-K. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state our financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2012. The results of operations for the three and nine months ended September 30, 2013 and 2012, are not necessarily indicative of the results to be expected for the full year (or any other period). Certain amounts have been reclassified to conform to the current-year presentation.
	The preparation of these condensed consolidated financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant estimates in these consolidated financial statements include allowances for doubtful accounts receivable, inventory valuation reserves, product warranty reserves, valuations of long-lived assets, deferred income taxes and uncertain tax positions, stock-based compensation, contingencies and accrued litigation expenses. Actual results could differ from those estimates.
Segment Information	'
	b. Segment information
	The Company is comprised of two reportable segments: the sale of CEWs, accessories and other products and services (the “TASER Weapons segment”); and the Video business which includes the TASER Cam, AXON Video products and EVIDENCE.com (the “EVIDENCE.com & Video segment”). Reportable segments are determined based on discrete financial information reviewed by the Company’s Chief Executive Officer who is the chief operating decision maker (the “CODM”) for the Company. The Company organizes and reviews operations based on products and services, and currently there are no operating business segments that are aggregated. The Company performs an annual analysis of its reportable segments. Additional information related to the Company’s segments is summarized in Note 12.
Geographic Information and Major Customers	'
	c. Geographic information and major customers
	For the three and nine months ended September 30, 2013 and 2012, net sales by geographic area were as follows (dollars in thousands):


			Three Months Ended September 30,											Nine Months Ended September 30,
			2013						2012					2013				2012
	United States		$	31,483			89	%	$	23,335		81	%	$	86,036	88	%	$	68,341	83	%
	Other Countries			3,714			11			5,438		19			11,770	12			14,296	17

	Total		$	35,197			100	%	$	28,773		100	%	$	97,806	100	%	$	82,637	100	%

	Sales to customers outside of the United States are typically denominated in U.S. dollars and are attributed to each country based on the shipping address of the distributor or customer. For the three and nine months ended September 30, 2013 and 2012, no individual country outside of the United States represented greater than 10% of total net sales. Sales in the international market generally are larger and occur more intermittently than in the domestic market due to the profile of the customer.
	For the three months ended September 30, 2013, one distributor represented approximately 12.2% of total net sales. In the three months ended September 30, 2012, one distributor represented approximately 10.6% of total net sales. For the nine months ended September 30, 2013, one distributor represented approximately 12.1% of total net sales. For the nine months ended September 30, 2012, one distributor represented approximately 14.3% of total net sales. At September 30, 2013, the Company had receivables from four customers comprising approximately 16.5%, 13.9%, 10.9% and 10.4% of its aggregate accounts receivable balance, respectively. At December 31, 2012, the Company had a trade note receivable from one unaffiliated customer comprising 17.2% of the aggregate accounts receivable balance.
Income Per Common Share	'
	d. Income per common share
	Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the periods presented. Diluted income per share is calculated based on the weighted average number of common shares outstanding for the period plus the dilutive effect of stock options and restricted stock units using the treasury stock method. The calculation of the weighted average number of shares outstanding and income per share are as follows:


			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2013			2012			2013		2012
	Numerator for basic and diluted earnings per share:
	Net income		$	5,113,592		$	3,676,872		$	12,868,947	$	10,922,936

	Denominator:
	Weighted average shares outstanding—basic			51,341,785			52,509,068			51,727,197		57,997,341
	Dilutive effect of stock-based awards			1,979,133			597,257			1,916,606		485,492

	Diluted weighted average shares outstanding			53,320,918			53,106,325			53,643,803		58,482,833

	Anti-dilutive stock-based awards excluded			565,099			4,732,366			898,230		5,261,887

	Net income per common share:
	Basic		$	0.1		$	0.07		$	0.25	$	0.19
	Diluted		$	0.1		$	0.07		$	0.24	$	0.19
Revenue Recognition	'
	e. Revenue recognition
	The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, title has transferred, the price is fixed and collectability is reasonably assured. Revenue arrangements with multiple deliverables are divided into separate units and revenue is allocated using the relative selling price method based upon vendor-specific objective evidence of selling price or third-party evidence of the selling prices if vendor-specific objective evidence of selling prices does not exist. If neither vendor-specific objective evidence nor third-party evidence exists, management uses its best estimate of selling price.

	The Company sells its EVIDENCE.com & Video segment products separately, but in most instances the Company’s AXON equipment and EVIDENCE.com software-as-a-service are sold together. In these instances, customers typically purchase and pay for the AXON equipment and EVIDENCE.com services in advance, with the AXON equipment representing a deliverable that is provided to the customer at the time of sale, and EVIDENCE.com services provided over a specified service term, which has typically ranged from one to five years. The Company recognizes revenue for the AXON equipment at the time of the sale consistent with the discussion of multiple deliverable arrangements above. Revenue for EVIDENCE.com service is deferred at the time of the sale and recognized over the service period. At September 30, 2013 and December 31, 2012, approximately $3.7 million and $1.3 million of EVIDENCE.com revenue was deferred, respectively, and are being recognized over the applicable service terms.
	The Company offers customers the right to purchase extended warranties that include additional services and coverage beyond the limited warranty for certain products. Revenue for extended warranty purchases is deferred at the time of sale and recognized over the warranty period commencing on the date of sale. Extended warranties range from one to five years. At September 30, 2013 and December 31, 2012, approximately $14.5 million and $10.8 million were deferred under this program, respectively.
	Certain of the Company’s customers are charged shipping fees, which are recorded as a component of net sales. Sales tax collected on sales is netted against government remittances and thus, recorded on a net basis, with no income statement impact. Training revenue is recorded as the training is provided.
Warranty Costs	'
	f. Warranty costs
	The Company warrants its CEWs, StrikeLight, AXON cameras and Evidence Transfer Manager (“ETM”) from manufacturing defects on a limited basis for a period of one year after purchase and thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold and services delivered when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to returns and warranty costs on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure that could result in larger than anticipated returns from customers. The accrued warranty liability expense is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. Costs related to extended warranties are charged to cost of products sold and services delivered when incurred.
	The reserve for warranty returns is included in accrued liabilities on the condensed consolidated balance sheets. The nine months ended September 30, 2013, includes additional expense due to a change in estimate for the AXON flex on-officer camera based on the analysis of return data for their first year of sales in addition to warranty expense relating to the launch of the X26P in the first quarter of 2013. Additional expense was also incurred due to the launch of the AXON body camera in the third quarter of 2013. The warranty expense for the nine months ended September 30, 2012, is net of a recovery due to a change in estimate for the X2 CEW warranty reserves based on the analysis of return data for their first year of sales. Changes in the Company’s estimated product warranty liabilities are as follows:


			Nine Months Ended
			September 30,
			2013			2012
	Balance, January 1,		$	483,721		$	427,459
	Utilization of accrual			(394,592	)		(312,570	)
	Warranty expense			618,915			265,140

	Balance, September 30,		$	708,044		$	380,029

Fair Value of Financial Instruments	'
	g. Fair value of financial instruments
	The Company uses the fair value framework, that prioritizes the inputs to valuation techniques, for measuring financial assets and liabilities measured on a recurring basis and for non-financial assets and liabilities when these items are remeasured. Under fair value measurement U.S. GAAP accounting standards, fair value is considered to be the exchange price in an orderly transaction between market participants to sell an asset or transfer a liability at the measurement date. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. The Company categorizes each of its fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:

		•		Level 1 – Unadjusted quoted market prices in active markets for identical assets or liabilities.

		•		Level 2 – Quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active.

		•		Level 3 – Unobservable inputs that are not corroborated by market data.
	At September 30, 2013, the Company held cash, cash equivalents, and investments, which are typically comprised of money market mutual funds, certificates of deposit and high quality municipal and corporate bonds. Money market mutual funds are recorded at market value and are valued using Level 1 valuation techniques. All other instruments are recorded at amortized cost on the balance sheet based on management’s ability and intent to hold these instruments to maturity. The Company’s financial instruments also include accounts and notes receivable, accounts payable and accrued liabilities. Due to the short-term nature of these instruments, their fair values approximate their carrying values on the balance sheet.
Impairment of Long-Lived Assets	'
	h. Impairment of Long-Lived Assets
	Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and identifiable intangible assets may warrant revision or that the remaining balance of these assets may not be recoverable. Such circumstances could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way products are branded and marketed. In performing the review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows. No impairment losses were recorded in the three or nine months ended September 30, 2013 and 2012.
Recently Issued Accounting Guidance	'
	i. Recently issued accounting guidance
	In July 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update (“ASU”) to standardize the balance sheet presentation of unrecognized tax benefits. This Update applies to all entities that have unrecognized tax benefits when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists at the reporting date. The new guidance is effective for fiscal years beginning after December 15, 2013, and early adoption is allowed. The adoption of this guidance will result in an immaterial reclassification on the Company’s consolidated balance sheet.
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued an accounting standard update (“ASU”) requiring entities to provide information about the amounts reclassified out of accumulated other comprehensive income (“OCI”) by component. In addition, an entity is required to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated OCI by the respective line items of net income, but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. For other amounts that are not required under U.S. GAAP to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures required under U.S. GAAP that provide additional detail about those amounts. The new guidance was effective for fiscal years beginning after December 15, 2012. The amendments do not change the current requirements for reporting net income or OCI in financial statements. The Company adopted this guidance during the first quarter of 2013. The adoption did not have an impact on the Company’s consolidated financial statements.
	In July 2012, the FASB issued an ASU to simplify the impairment testing for indefinite-lived intangibles by allowing an entity to first assess qualitative factors, considering the totality of events and circumstances, to determine that it is more likely than not that the carrying amount of a reporting unit is less than its fair value. If it is not, then the entity is not required to take further action. However, if an entity concludes otherwise, then it is required to determine the fair value of the indefinite-lived intangible asset and perform the quantitative impairment test. The new guidance was effective for annual and interim impairment tests for fiscal years beginning after September 15, 2012. The Company adopted this guidance during the first quarter of 2013. The adoption did not have a material impact on the Company’s consolidated financial statements.

Organization_and_Summary_of_Si2

Organization and Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2013
Accounting Policies [Abstract]	'
Net Sales by Geographic Area	'
	For the three and nine months ended September 30, 2013 and 2012, net sales by geographic area were as follows (dollars in thousands):


		Three Months Ended September 30,											Nine Months Ended September 30,
		2013						2012					2013				2012
	United States	$	31,483			89	%	$	23,335		81	%	$	86,036	88	%	$	68,341	83	%
	Other Countries		3,714			11			5,438		19			11,770	12			14,296	17

	Total	$	35,197			100	%	$	28,773		100	%	$	97,806	100	%	$	82,637	100	%

Weighted Average Number of Shares Outstanding and Income Per Share	'
	The calculation of the weighted average number of shares outstanding and income per share are as follows:


		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2013			2012			2013		2012
	Numerator for basic and diluted earnings per share:
	Net income	$	5,113,592		$	3,676,872		$	12,868,947	$	10,922,936

	Denominator:
	Weighted average shares outstanding—basic		51,341,785			52,509,068			51,727,197		57,997,341
	Dilutive effect of stock-based awards		1,979,133			597,257			1,916,606		485,492

	Diluted weighted average shares outstanding		53,320,918			53,106,325			53,643,803		58,482,833

	Anti-dilutive stock-based awards excluded		565,099			4,732,366			898,230		5,261,887

	Net income per common share:
	Basic	$	0.1		$	0.07		$	0.25	$	0.19
	Diluted	$	0.1		$	0.07		$	0.24	$	0.19
Summary of Changes in Estimated Product Warranty Liabilities	'
	Changes in the Company’s estimated product warranty liabilities are as follows:

		Nine Months Ended
		September 30,
		2013			2012
	Balance, January 1,	$	483,721		$	427,459
	Utilization of accrual		(419,351	)		(312,570	)
	Warranty expense		643,674			265,140

	Balance, September 30,	$	708,044		$	380,029

Cash_Cash_Equivalents_and_Inve1

Cash, Cash Equivalents, and Investments (Tables)	9 Months Ended
Cash, Cash Equivalents, and Investments (Tables)	Sep. 30, 2013
Cash And Cash Equivalents [Abstract]	'
Summary of Cash, Cash Equivalents and Held-to-Maturity Investments by Type	'
	The following is a summary of cash, cash equivalents and held-to-maturity investments by type at September 30, 2013 and December 31, 2012:


		September 30, 2013									December 31, 2012
				Gross		Gross							Gross		Gross
		Amortized		Unrealized		Unrealized					Amortized		Unrealized		Unrealized
		Cost		Gains		Losses			Fair Value		Cost		Gains		Losses			Fair Value
	Cash and money market funds	$	34,905,493	$	—	$	—		$	34,905,493	$	36,126,791	$	—	$	—		$	36,126,791
	State and municipal obligations		8,587,008		7,784		(9	)		8,594,783		—		—		—			—
	Corporate bonds		2,962,150		—		(8,557	)		2,953,593		958		—		—			958
	Certificates of deposit		1,882,301		—		(40	)		1,882,261		1,680,000		—		(1,488	)		1,678,512

	Total cash, cash equivalents and investments	$	48,336,952	$	7,784	$	(8,606	)	$	48,336,130	$	37,807,749	$	—	$	(1,488	)	$	37,806,261

Summarized Classification of Short Term and Long Term Investments	'
	The following table summarizes the classification of cash, cash equivalents and investments in the accompanying balance sheet:


		September 30,		December 31,
		2013		2012
	Cash	$	32,051,501	$	19,811,735
	Cash equivalents		2,953,993		16,315,056

	Total cash and cash equivalents		35,005,494		36,126,791
	Short-term investments		8,751,409		1,680,958
	Long-term investments		4,580,049		—

	Total cash, cash equivalents and investments	$	48,336,952	$	37,807,749

Summary of Amortized Cost and Fair Value of Short-term and Long-term Investments	'
	The following table summarizes the amortized cost and fair value of the short-term and long-term investments held by the Company at September 30, 2013 by contractual maturity:


		Amortized Cost		Fair Value
	Due in less than one year	$	8,751,409	$	8,756,782
	Due after one year, through two years		4,580,049		4,573,855

	Total short-term and long-term investments	$	13,331,458	$	13,330,637

Inventory_Tables

Inventory (Tables)	9 Months Ended
Inventory (Tables)	Sep. 30, 2013
Inventory Disclosure [Abstract]	'
Inventories	'
	Inventories as of September 30, 2013 and December 31, 2012, consisted of the following:


		September 30,			December 31,
		2013			2012
	Raw materials	$	9,257,735		$	9,689,172
	Work-in-process		46,348			131,492
	Finished goods		3,681,059			3,492,167
	Reserve for excess and obsolete inventory		(695,782	)		(2,319,622	)

	Total inventory	$	12,289,360		$	10,993,209

Intangible_Assets_Tables

Intangible Assets (Tables)	9 Months Ended
Intangible Assets (Tables)	Sep. 30, 2013
Goodwill And Intangible Assets Disclosure [Abstract]	'
Intangible Assets	'
	Intangible assets consisted of the following at September 30, 2013 and December 31, 2012:


				September 30, 2013							December 31, 2012
				Gross					Net
				Carrying		Accumulated			Carrying		Gross Carrying		Accumulated			Net Carrying
		Useful Life		Amount		Amortization			Amount		Amount		Amortization			Amount
	Amortized:
	Domain names		5 Years	$	139,431	$	(112,763	)	$	26,668	$	139,431	$	(103,840	)	$	35,591
	Issued patents		4 to 15 Years		1,559,484		(429,165	)		1,130,319		1,528,955		(362,032	)		1,166,923
	Issued trademarks		9 to 11 Years		421,789		(134,719	)		287,070		362,106		(101,561	)		260,545

	Total amortized				2,120,704		(676,647	)		1,444,057		2,030,492		(567,433	)		1,463,059

	Not amortized:
	TASER trademark				900,000					900,000		900,000					900,000
	Patents and trademarks pending				1,016,298					1,016,298		954,110					954,110

	Total not amortized				1,916,298					1,916,298		1,854,110					1,854,110

	Total intangible assets			$	4,037,002	$	(676,647	)	$	3,360,355	$	3,884,602	$	(567,433	)	$	3,317,169

Estimated Amortization Expense of Intangible Assets	'
	Estimated amortization expense of intangible assets for the remaining three months of 2013, the next five years ended December 31, and thereafter is as follows:


	2013 (remaining three months)	$	39,434
	2014		156,818
	2015		148,068
	2016		140,997
	2017		137,424
	2018		127,828
	Thereafter		693,488

	Total	$	1,444,057

Accrued_Liabilities_Tables

Accrued Liabilities (Tables)	9 Months Ended
Accrued Liabilities (Tables)	Sep. 30, 2013
Payables And Accruals [Abstract]	'
Accrued Liabilities	'
	Accrued liabilities consisted of the following at September 30, 2013 and December 31, 2012:


		September 30,		December 31,
		2013		2012
	Accrued salaries and benefits	$	1,836,857	$	2,416,268
	Accrued judgments and reserves		3,050,000		2,090,000
	Accrued warranty expense		708,044		483,721
	Accrued income and other taxes		115,832		295,595
	Other accrued expenses		2,470,119		1,779,501

	Accrued liabilities	$	8,180,852	$	7,065,085

Stockholders_Equity_Tables

Stockholders' Equity (Tables)	9 Months Ended
Stockholders' Equity (Tables)	Sep. 30, 2013
Equity [Abstract]	'
Summary of Restricted Stock Unit Activity	'
	The following table summarizes RSU activity for the nine months ended September 30, 2013:


					Weighted
					Average
					Grant-
		Number of			Date Fair		Aggregate
		Units			Value		Intrinsic Value
	Units outstanding, beginning of period		582,212		$	5.42
	Granted		736,479			8.98
	Released		(158,700	)		5.39
	Forfeited		(44,814	)		7.24

	Units outstanding, end of period		1,115,177			7.71	$	16,593,834

Summary of the Company's Stock Options	'
	The following table summarizes stock option activity for the nine months ended September 30, 2013:


							Average
					Weighted		Remaining
		Number of			Average		Contractual		Aggregate
		options			Exercise Price		Life (years)		Intrinsic Value
	Options outstanding, beginning of period		6,321,076		$	6.05
	Granted		—
	Exercised		(1,985,596	)		5.14
	Expired / forfeited		(132,288	)		5.72

	Options outstanding,end of period		4,203,192			6.49		4.51	$	35,702,302

	Exercisable at September 30, 2013		3,754,714			6.71		4.31		31,097,408

	Expected to vest after September 30, 2013		380,339			4.6		6.19		3,908,919

Reported Share-Based Compensation	'
	Share-based compensation was classified as follows:


		Three Months Ended					Nine Months Ended
		September 30,					September 30,
		2013			2012		2013		2012
	Cost of products sold	$	49,632		$	38,085	$	133,500	$	133,977
	Sales, general and administrative expenses		735,433			657,870		2,292,672		1,631,234
	Research and development expenses		177,929			153,433		479,463		431,839

	Total share-based compensation	$	962,994		$	849,388	$	2,905,635	$	2,197,050

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2013

Commitments And Contingencies Disclosure [Abstract]

Loss Contingencies

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Grable

8-Aug

6th Judicial Circuit Court, Pinellas County, FL

Training Injury

Discovery Phase

Koon

8-Dec

17th Judicial Circuit Court, Broward County, FL

Training Injury

Discovery Phase

Peppler

9-Apr

5th Judicial Circuit Court, Sumter City, FL

Training Injury

Discovery Phase

Derbyshire

9-Nov

Ontario, Canada Superior Court of Justice

Officer Injury

Discovery Phase

Rich

10-Feb

US District Court, NV

Wrongful Death

Trial scheduled December 2013

Thompson

10-Mar

11th Judicial Circuit Court, Miami-Dade County, FL

Suspect Injury During Arrest

Discovery Phase

Doan

10-Apr

The Queens Bench Alberta, Red Deer Judicial Dist.

Wrongful Death

Discovery Phase

Shymko

10-Dec

The Queens Bench, Winnipeg Centre, Manitoba

Wrongful Death

Pleading Phase

Juran

10-Dec

Hennepin County District Court, 4th Judicial District

Officer Injury

Discovery Phase

Wilson

11-May

US District Court, ED MO

Wrongful Death

Discovery Phase

Ramsey

12-Jan

17th Judicial Circuit Court, Broward County Circuit Court, FL

Wrongful Death

Discovery Phase

Duensing

12-Feb

US District Court, NV

Suspect Injury During Arrest

Motion Phase

Mitchell

12-Apr

US District Court, ED MI

Wrongful Death

Discovery Phase, trial scheduled June 2014

Firman

12-Apr

Ontario, Canada Superior Court of Justice

Wrongful Death

Pleading Phase

Ricks

12-May

US District Court, WD LA

Wrongful Death

Motion Phase

Wingard

12-Oct

US District Court, WD PA

Wrongful Death

Discovery Phase

Manjares

12-Nov

US District Court, ED WA

Suspect Injury During Arrest

Discovery Phase; trial scheduled July 2014

Miller

13-Jan

New Castle County Superior Court, DE

Wrongful Death

Discovery Phase

Salgado

13-Feb

US District Court, SD FL

Wrongful Death

Stayed

Armstrong

13-Apr

General Court of Justice, Superior Div, Moore County, NC

Wrongful Death

Discovery Phase

Barnes

13-Apr

US District Court, WD PA

Wrongful Death

Discovery Phase

Athetis

9-May

Maricopa County Superior Court, AZ

Wrongful Death

Dismissal Pending

Summary of Other Litigation Matters

In addition, other product litigation matters in which the Company is involved that are currently on appeal are listed below:

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Turner

10-Feb

US District Court, ED NC

Wrongful death

Appeal fully briefed; Oral argument held on September 19, 2013

Bachtel

11-Aug

14th Judicial District Circuit Court, Randolph County, MO

Wrongful Death

Appeal fully briefed; date for Oral Argument has not been set

Glowczenski

4-Oct

US District Court, ED NY

Wrongful death

Notice of Appeal filed Septemebr 2013; opening brief is due January 2014

Summary of Cases Dismissed or Judgment Entered

Month

Plaintiff

Served

Jurisdiction

Claim Type

Status

Glowczenski

4-Oct

US Disrict Court, ED NY

Wrongful Death

Court granted Motion for Summary Judgment in favor of TASER

McCarthy

12-Dec

US District Court, WD NC

Wrongful Death

Voluntary Dismissal

Piskura

10-May

US District Court, OH

Wrongful Death

Voluntary Dismissal

Information Regarding the Company's Insurance Coverage

The following table provides information regarding the Company’s product liability insurance. Remaining insurance coverage is based on information received from the Company’s insurance provider.

Defense

Remaining

Policy Start

Policy End

Insurance

Deductible

Costs

Insurance

Active Cases and Cases on

Policy Year

Date

Coverage

Amount

Covered

Coverage

Appeal

2004

12/1/03

12/1/04

0.1

Glowczenski

2005

12/1/04

12/1/05

0.3

n/a

2006

12/1/05

12/1/06

0.3

3.7

n/a

2007

12/1/06

12/1/07

0.3

n/a

2008

12/1/07

12/15/08

0.5

—

Grable, Koon, Peppler, Rich, Turner

2009

12/15/08

12/15/09

Athetis, Derbyshire

2010

12/15/09

12/15/10

Thompson, Shymko, Doan, Juran

2011

12/15/10

12/15/11

Wilson, Bachtel

Jan - Jun 2012

12/15/11

6/25/12

Ramsey, Duensing, Mitchell, Firman, Ricks

Jul - Dec 2012

6/25/12

12/15/12

Wingard, Manjares

2013

12/15/12

12/15/13

Miller, Salgado, Barnes, Armstrong

Segment_Data_Tables

Segment Data (Tables)	9 Months Ended
Segment Data (Tables)	Sep. 30, 2013
Segment Reporting [Abstract]	'
Summary of Operational Information Relative to the Company's Reportable Segments	'
	Information relative to the Company’s reportable segments is as follows:


		Three Months Ended September 30, 2013							Three Months Ended September 30, 2012
		TASER		EVIDENCE.com					TASER			EVIDENCE.com
		Weapons		& Video			Total		Weapons			& Video			Total
	Product sales	$	31,626,484	$	3,103,781		$	34,730,265	$	27,085,180		$	1,528,347		$	28,613,527
	Service revenue		—		466,557			466,557		—			159,429			159,429

	Net sales		31,626,484		3,570,338			35,196,822		27,085,180			1,687,776			28,772,956

	Cost of products sold		10,906,999		1,896,691			12,803,690		9,673,370			1,181,906			10,855,276
	Cost of services delivered		—		297,127			297,127		—			1,114,668			1,114,668

	Gross margin		20,719,485		1,376,520			22,096,005		17,411,810			(608,798	)		16,803,012
	Sales, general & administrative		11,130,971		1,645,009			12,775,980		8,618,250			921,746			9,539,996
	Research & development		1,160,400		1,279,412			2,439,812		1,043,607			942,094			1,985,701

	Income (loss) from operations	$	8,428,114	$	(1,547,901	)	$	6,880,213	$	7,749,953		$	(2,472,638	)	$	5,277,315

	Purchases of property and equipment	$	229,965	$	105,460		$	335,425	$	217,092		$	68,215		$	285,307
	Purchases of intangible assets		66,844		2,107			68,951		76,148			9,728			85,876
	Depreciation and amortization		1,025,164		62,907			1,088,071		1,054,239			664,307			1,718,546

		Nine Months Ended September 30, 2013							Nine Months Ended September 30, 2012
		TASER		EVIDENCE.com					TASER			EVIDENCE.com
		Weapons		& Video			Total		Weapons			& Video			Total
	Product sales	$	89,901,959	$	6,853,388		$	96,755,347	$	78,774,581		$	3,464,606		$	82,239,187
	Service revenue		—		1,050,924			1,050,924		—			397,604			397,604

	Net sales		89,901,959		7,904,312			97,806,271		78,774,581			3,862,210			82,636,791

	Cost of products sold		31,534,576		4,440,236			35,974,812		28,068,676			2,712,678			30,781,354
	Cost of services delivered		—		1,542,087			1,542,087		—			3,308,794			3,308,794

	Gross margin		58,367,383		1,921,989			60,289,372		50,705,905			(2,159,262	)		48,546,643
	Sales, general & administrative		30,622,109		4,275,896			34,898,005		24,373,401			2,425,228			26,798,629
	Research & development		3,126,589		3,317,843			6,444,432		2,806,043			3,350,708			6,156,751
	Litigation judgment recovery		—		—			—		(2,200,000	)		—			(2,200,000	)

	Income (loss) from operations	$	24,618,685	$	(5,671,750	)	$	18,946,935	$	25,726,461		$	(7,935,198	)	$	17,791,263

	Purchases of property and equipment	$	827,896	$	346,524		$	1,174,420	$	530,383		$	357,226		$	887,609
	Purchases of intangible assets		260,431		10,713			271,144		322,337			15,526			337,863
	Depreciation and amortization		2,997,848		1,038,489			4,036,337		3,336,403			1,777,586			5,113,989

Organization_and_Summary_of_Si3

Organization and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

12 Months Ended

9 Months Ended

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Segment

Minimum [Member]

Maximum [Member]

Other Countries [Member]

Sales [Member]

Distributor One [Member]

Distributor Two [Member]

Distributor Three [Member]

Distributor Four [Member]

TASER C2 [Member]

Evidence.Com & Video [Member]

Extended Product Warranty [Member]

Customer

Minimum [Member]

Maximum [Member]

Segment Reporting Information [Line Items]

Number of reportable segments of company

Aggregated operating segments

Number of customer outside the united states

Maximum percentage of total sales represented by one customer

10.00%

12.20%

10.60%

12.10%

14.30%

Accounts and notes receivable by customers one

16.50%

17.20%

13.90%

10.90%

10.40%

Deferred revenue

$3,700,000

$1,300,000

$14,500,000

$10,800,000

Service term for services purchased

'1 year

'5 years

Period of extended warranty after expiration of standard warranty

'1 year

'5 years

Standard warranty period

'1 year

Impairment losses

Organization_and_Summary_of_Si4

Organization and Summary of Significant Accounting Policies - Net Sales by Geographic Area (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]	'	'	'	'
Net sales by Geographic Area	$35,196,822	$28,772,956	$97,806,271	$82,636,791
Percentage of Net sales by Geographic Area	100.00%	100.00%	100.00%	100.00%
United States [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales by Geographic Area	31,483,000	23,335,000	86,036,000	68,341,000
Percentage of Net sales by Geographic Area	89.00%	81.00%	88.00%	83.00%
Other Countries [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Net sales by Geographic Area	$3,714,000	$5,438,000	$11,770,000	$14,296,000
Percentage of Net sales by Geographic Area	11.00%	19.00%	12.00%	17.00%

Organization_and_Summary_of_Si5

Organization and Summary of Significant Accounting Policies - Weighted Average Number of Shares Outstanding and Income Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Numerator for basic and diluted earnings per share:	'	'	'	'
Net income	$5,113,592	$3,676,872	$12,868,947	$10,922,936
Denominator:	'	'	'	'
Weighted average shares outstanding-basic	51,341,785	52,509,068	51,727,197	57,997,341
Dilutive effect of stock-based awards	1,979,133	597,257	1,916,606	485,492
Diluted weighted average shares outstanding	53,320,918	53,106,325	53,643,803	58,482,833
Anti-dilutive stock-based awards excluded	565,099	4,732,366	898,230	5,261,887
Net income per common share:	'	'	'	'
Basic	$0.10	$0.07	$0.25	$0.19
Diluted	$0.10	$0.07	$0.24	$0.19

Organization_and_Summary_of_Si6

Organization and Summary of Significant Accounting Policies - Summary of Changes in Estimated Product Warranty Liabilities (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]	'	'
Balance, beginning of period	$483,721	$427,459
Utilization of accrual	-419,351	-312,570
Warranty expense	643,674	265,140
Balance, end of period	$708,044	$380,029

Cash_Cash_Equivalents_and_Inve2

Cash, Cash Equivalents, and Investments - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
Cash and Cash Equivalents [Line Items]	'
Initial maturities period of cash and cash equivalents	'3 months
Maturities period of Long-term investments and securities	'1 year
Maximum [Member]	'
Cash and Cash Equivalents [Line Items]	'
Maturities period of Short-term investments and securities	'1 year

Cash_Cash_Equivalents_and_Inve3

Cash, Cash Equivalents, and Investments - Summary of Cash, Cash Equivalents and Held-to-Maturity Investments by Type (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Amortized Cost	$48,336,952	$37,807,749
Gross Unrealized Gains	7,784	'
Gross Unrealized Losses	-8,606	-1,488
Fair Value	48,336,130	37,806,261
Cash and Money Market Funds [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Amortized Cost	34,905,493	36,126,791
Gross Unrealized Gains	'	'
Gross Unrealized Losses	'	'
Fair Value	34,905,493	36,126,791
State and Municipal Obligations [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Amortized Cost	8,587,008	'
Gross Unrealized Gains	7,784	'
Gross Unrealized Losses	-9	'
Fair Value	8,594,783	'
Corporate Bonds [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Amortized Cost	2,962,150	958
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-8,557	'
Fair Value	2,953,593	958
Certificates of Deposit [Member]	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Amortized Cost	1,882,301	1,680,000
Gross Unrealized Gains	'	'
Gross Unrealized Losses	-40	-1,488
Fair Value	$1,882,261	$1,678,512

Cash_Cash_Equivalents_and_Inve4

Cash, Cash Equivalents, and Investments - Summarized Classification of Short Term and Long Term Investments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Investments Schedule [Abstract]	'	'	'	'
Cash	$32,051,501	$19,811,735	'	'
Cash equivalents	2,953,993	16,315,056	'	'
Total cash and cash equivalents	35,005,494	36,126,791	25,965,711	21,300,733
Short-term investments	8,751,409	1,680,958	'	'
Long-term investments	4,580,049	'	'	'
Total cash, cash equivalents and investments	$48,336,952	$37,807,749	'	'

Cash_Cash_Equivalents_and_Inve5

Cash, Cash Equivalents, and Investments - Summary of Amortized Cost and Fair Value of Short-term and Long-term Investments (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Due in less than one year	$8,751,409	$1,680,958
Due after one year, through two years	4,580,049	'
Amortized Cost [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Due in less than one year	8,751,409	'
Due after one year, through two years	4,580,049	'
Total short-term and long-term investments	13,331,458	'
Fair Value [Member]	'	'
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]	'	'
Due in less than one year	8,756,782	'
Due after one year, through two years	4,573,855	'
Total short-term and long-term investments	$13,330,637	'

Inventory_Additional_Informati

Inventory - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]	'	'
Reserve for excess and obsolete inventory	$695,782	$2,319,622

Inventory_Inventories_Detail

Inventory - Inventories (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Inventory Disclosure [Abstract]	'	'
Raw materials	$9,257,735	$9,689,172
Work-in-process	46,348	131,492
Finished goods	3,681,059	3,492,167
Reserve for excess and obsolete inventory	-695,782	-2,319,622
Total inventory	$12,289,360	$10,993,209

Intangible_Assets_Intangible_A

Intangible Assets - Intangible Assets (Detail) (USD $)	9 Months Ended
Intangible Assets - Intangible Assets (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Not amortized intangible assets, Carrying Amount	$1,916,298	$1,854,110
Amortized intangible assets, Gross Carrying Amount	2,120,704	2,030,492
Intangible assets, Gross Carrying Amount	4,037,002	3,884,602
Accumulated Amortization	-676,647	-567,433
Net Carrying Amount	1,444,057	1,463,059
Intangible assets, net carrying amount	3,360,355	3,317,169
TASER Trademark [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Not amortized intangible assets, Carrying Amount	900,000	900,000
Patents and Trademarks Pending [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Not amortized intangible assets, Carrying Amount	1,016,298	954,110
Domain Names [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Useful Life	'5 years	'
Amortized intangible assets, Gross Carrying Amount	139,431	139,431
Accumulated Amortization	-112,763	-103,840
Net Carrying Amount	26,668	35,591
Issued Patents [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Gross Carrying Amount	1,559,484	1,528,955
Accumulated Amortization	-429,165	-362,032
Net Carrying Amount	1,130,319	1,166,923
Issued Trademarks [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Gross Carrying Amount	421,789	362,106
Accumulated Amortization	-134,719	-101,561
Net Carrying Amount	$287,070	$260,545
Minimum [Member] \| Issued Patents [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Useful Life	'4 years	'
Minimum [Member] \| Issued Trademarks [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Useful Life	'9 years	'
Maximum [Member] \| Issued Patents [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Useful Life	'15 years	'
Maximum [Member] \| Issued Trademarks [Member]	'	'
Acquired Indefinite-lived Intangible Assets [Line Items]	'	'
Amortized intangible assets, Useful Life	'11 years	'

Intangible_Assets_Additional_I

Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
Intangible Assets - Additional Information (Detail) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Goodwill And Intangible Assets Disclosure [Abstract]	'	'	'	'
Amortization expense	$39,000	$36,000	$115,000	$104,000

Intangible_assets_Estimated_Am

Intangible assets - Estimated Amortization Expense of Intangible Assets (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]	'	'
2013 (remaining three months)	$39,434	'
2014	156,818	'
2015	148,068	'
2016	140,997	'
2017	137,424	'
2018	127,828	'
Thereafter	693,488	'
Net Carrying Amount	$1,444,057	$1,463,059

Accrued_Liabilities_Accrued_Li

Accrued Liabilities - Accrued Liabilities (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2011
Payables And Accruals [Abstract]	'	'	'	'
Accrued salaries and benefits	$1,836,857	$2,416,268	'	'
Accrued judgments and reserves	3,050,000	2,090,000	'	'
Accrued warranty expense	708,044	483,721	380,029	427,459
Accrued income and other taxes	115,832	295,595	'	'
Other accrued expenses	2,470,119	1,779,501	'	'
Accrued liabilities	$8,180,852	$7,065,085	'	'

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail) (USD $)	9 Months Ended
Income Taxes - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Income Tax Disclosure [Line Items]	'	'
Total current and long term deferred tax assets	$19,800,000	'
Research and development tax credit studies	7,800,000	'
Liability for unrecognized tax benefits	3,074,447	2,902,896
Effective tax rate, before discrete period adjustments	32.20%	'
Anticipated annual income tax rate	38.20%	'
Federal [Member]	'	'
Income Tax Disclosure [Line Items]	'	'
Liability for unrecognized tax benefits	2,900,000	'
State [Member]	'	'
Income Tax Disclosure [Line Items]	'	'
Liability for unrecognized tax benefits	$200,000	'

Stockholders_Equity_Additional

Stockholders' Equity - Additional Information (Detail) (USD $)

1 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

3 Months Ended

23-May-13

Feb. 28, 2013

Jun. 30, 2013

Sep. 30, 2013

Dec. 31, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Sep. 30, 2013

Sep. 30, 2012

Jun. 30, 2013

Plans

Restricted Stock [Member]

Performance Based Restricted Stock Unit [Member]

Employee Stock Option [Member]

Performance Based Stock Options [Member]

Incentive Stock Options [Member]

Repurchase of Equity [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Option available for future grants

2,300,000

Number of stock based compensation plans

Stock incentive plan

1,600,000

Aggregate intrinsic value price per share

$14.88

Unrecognized stock-based compensation cost

$5,400,000

$300,000

Weighted average period

'29 months

Approximate units of performance restricted stock granted

149,000

Approximate units outstanding

1,115,177

582,212

227,000

Performance criteria met for approximate units

158,700

85,000

Options exercised, aggregate intrinsic value

5,300,000

700,000

9,100,000

1,600,000

Weighted average vesting period

'9 months

Performance-based stock options Cumulative Granted

400,000

Performance-based stock options condition met

100,000

Unvested performance options

300,000

Fair value of Unvested performance options

47,000

Incremental stock option expense

22,000

98,000

Total share-based compensation expense

85,000

300,000

Outstanding common stock repurchase program Authorized Amount

25,000,000

Shares repurchased

3,048,966

Additional stock repurchase program authorized amount

$25,000,000

Average cost of repurchase per share

$8.17

$8.20

Stockholders_Equity_Summary_of

Stockholders' Equity - Summary of Restricted Stock Unit Activity (Detail) (Restricted Stock [Member], USD $)	9 Months Ended
	Sep. 30, 2013
Restricted Stock [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Units outstanding, beginning of year	582,212
Number of Units, Granted	736,479
Number of Units, Released	-158,700
Number of Units, Forfeited	-44,814
Number of Units outstanding, end of year	1,115,177
Weighted Average Grant Date Fair Value, Units outstanding, beginning of period	$5.42
Weighted Average Grant Date Fair Value, Granted	$8.98
Weighted Average Grant Date Fair Value, Released	$5.39
Weighted Average Grant Date Fair Value, Forfeited	$7.24
Weighted Average Grant Date Fair Value, Units outstanding, end of period	$7.71
Aggregate intrinsic value, Units outstanding, beginning of period	'
Aggregate intrinsic value, Granted	'
Aggregate intrinsic value, Released	'
Aggregate intrinsic value, Forfeited	'
Aggregate intrinsic value, Units outstanding, end of period	$16,593,834

Stockholders_Equity_Summary_of1

Stockholders' Equity - Summary of the Company's Stock Options (Detail) (Employee Stock Option [Member], USD $)	9 Months Ended
	Sep. 30, 2013
Employee Stock Option [Member]	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of options, Options outstanding, beginning of period	6,321,076
Number of options, Granted	'
Number of options, Exercised	-1,985,596
Number of options, Expired / forfeited	-132,288
Number of options, Options outstanding, end of period	4,203,192
Number of options, Options exercisable, end of period	3,754,714
Number of options, Options expected to vest, end of period	380,339
Weighted average exercise price, Options outstanding, beginning of period	$6.05
Weighted average exercise price, Granted	'
Weighted average exercise price, Exercised	$5.14
Weighted average exercise price, Expired / forfeited	$5.72
Weighted average exercise price, Options outstanding, end of period	$6.49
Weighted average exercise price, Options exercisable, end of period	$6.71
Weighted average exercise price, Options expected to vest, end of period	$4.60
Weighted Average Remaining Contractual Life (years), Options outstanding, end of period	'4 years 6 months 4 days
Weighted Average Remaining Contractual Life (years), Options exercisable, end of period	'4 years 3 months 22 days
Weighted Average Remaining Contractual Life (years), Options expected to vest, end of period	'6 years 2 months 9 days
Aggregate intrinsic value, Options outstanding, end of period	$35,702,302
Aggregate intrinsic value, Options exercisable, end of period	31,097,408
Aggregate intrinsic value, Options expected to vest, end of period	$3,908,919

Stockholders_Equity_Reported_S

Stockholders' Equity - Reported Share-Based Compensation (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	$962,994	$849,388	$2,905,635	$2,197,050
Cost of Products Sold [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	49,632	38,085	133,500	133,977
Sales, General and Administrative Expenses [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	735,433	657,870	2,292,672	1,631,234
Research and Development Expenses [Member]	'	'	'	'
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]	'	'	'	'
Total share-based compensation	$177,929	$153,433	$479,463	$431,839

Line_of_Credit_Additional_Info

Line of Credit - Additional Information (Detail) (USD $)	9 Months Ended
Line of Credit - Additional Information (Detail) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Debt Disclosure [Abstract]	'	'
Total availability under line of credit agreement	$10,000,000	'
Letters of credit outstanding amount	600,000	'
Available borrowing under letter of credit	9,400,000	'
Varying Interest on Line of credit agreement	'LIBOR plus 1.5% to prime	'
Line of credit interest rate	1.50%	'
Maturity date of line of credit	30-Jun-15	'
Line of credit facility amount outstanding	$0	$0
Maximum ratio of total liabilities to tangible net worth	11	'
Minimum required fixed coverage charge ratio	1.25	'
Period used for calculating ratios	'12 months	'
Company's tangible net worth ratio	0.41	'
Fixed coverage charge ratio	3.77	'

Commitments_and_Contingencies_1

Commitments and Contingencies - Additional Information (Detail) (USD $)	9 Months Ended		1 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2012	Jul. 31, 2011	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2013	Dec. 31, 2012	4-May-12	Apr. 20, 2012
	Litigation		Turner [Member]	Turner [Member]	Turner [Member]	Turner [Member]	Turner [Member]	Turner [Member]	Turner [Member]	Turner [Member]
	Lawsuits
Loss Contingencies [Line Items]	'	'	'	'	'	'	'	'	'	'
Number of lawsuits against Company	22	'	'	'	'	'	'	'	'	'
Number of product litigation matters on appeal	3	'	'	'	'	'	'	'	'	'
Jury decision against company	'	'	'	$10,000,000	'	'	'	'	'	'
Litigation judgment	'	'	'	'	'	3,300,000	'	'	'	'
Jury award value	'	'	4,400,000	'	'	'	'	'	'	'
Jury decision against company which adjusted to award	'	'	'	'	'	'	'	'	5,500,000	5,500,000
Benefit on reversal of accrued litigation	'	2,200,000	'	'	2,200,000	'	'	'	'	'
Benefit on reversal of accrued litigation leaving a reserve	'	'	'	'	1,100,000	'	1,100,000	1,100,000	'	'
Amount of settlement offer	$800,000	'	'	'	'	'	'	'	'	'

Commitments_and_Contingencies_2

Commitments and Contingencies - Loss Contingencies (Detail)	9 Months Ended
Commitments and Contingencies - Loss Contingencies (Detail)	Sep. 30, 2013
Grable [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Grable
Month Served	'Aug-08
Jurisdiction	'6th Judicial Circuit Court, Pinellas County, FL
Claim Type	'Training Injury
Status	'Discovery Phase
Koon [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Koon
Month Served	'Dec-08
Jurisdiction	'17th Judicial Circuit Court, Broward County, FL
Claim Type	'Training Injury
Status	'Discovery Phase
Peppler [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Peppler
Month Served	'Apr-09
Jurisdiction	'5th Judicial Circuit Court, Sumter City, FL
Claim Type	'Training Injury
Status	'Discovery Phase
Derbyshire [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Derbyshire
Month Served	'Nov-09
Jurisdiction	'Ontario, Canada Superior Court of Justice
Claim Type	'Officer Injury
Status	'Discovery Phase
Rich [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Rich
Month Served	'Feb-10
Jurisdiction	'US District Court, NV
Claim Type	'Wrongful Death
Status	'Trial scheduled December 2013
Thompson [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Thompson
Month Served	'Mar-10
Jurisdiction	'11th Judicial Circuit Court, Miami-Dade County, FL
Claim Type	'Suspect Injury During Arrest
Status	'Discovery Phase
Doan [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Doan
Month Served	'Apr-10
Jurisdiction	'The Queens Bench Alberta, Red Deer Judicial Dist.
Claim Type	'Wrongful Death
Status	'Discovery Phase
Shymko [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Shymko
Month Served	'Dec-10
Jurisdiction	'The Queens Bench, Winnipeg Centre, Manitoba
Claim Type	'Wrongful Death
Status	'Pleading Phase
Juran [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Juran
Month Served	'Dec-10
Jurisdiction	'Hennepin County District Court, 4th Judicial District
Claim Type	'Officer Injury
Status	'Discovery Phase
Wilson [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Wilson
Month Served	'May-11
Jurisdiction	'US District Court, ED MO
Claim Type	'Wrongful Death
Status	'Discovery Phase
Ramsey [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Ramsey
Month Served	'Jan-12
Jurisdiction	'17th Judicial Circuit Court, Broward County Circuit Court, FL
Claim Type	'Wrongful Death
Status	'Discovery Phase
Duensing [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Duensing
Month Served	'Feb-12
Jurisdiction	'US District Court, NV
Claim Type	'Suspect Injury During Arrest
Status	'Motion Phase
Mitchell [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Mitchell
Month Served	'Apr-12
Jurisdiction	'US District Court, ED MI
Claim Type	'Wrongful Death
Status	'Discovery Phase, trial scheduled June 2014
Firman [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Firman
Month Served	'Apr-12
Jurisdiction	'Ontario, Canada Superior Court of Justice
Claim Type	'Wrongful Death
Status	'Pleading Phase
Ricks [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Ricks
Month Served	'May-12
Jurisdiction	'US District Court, WD LA
Claim Type	'Wrongful Death
Status	'Motion Phase
Wingard [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Wingard
Month Served	'Oct-12
Jurisdiction	'US District Court, WD PA
Claim Type	'Wrongful Death
Status	'Discovery Phase
Manjares [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Manjares
Month Served	'Nov-12
Jurisdiction	'US District Court, ED WA
Claim Type	'Suspect Injury During Arrest
Status	'Discovery Phase; trial scheduled July 2014
Miller [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Miller
Month Served	'Jan-13
Jurisdiction	'New Castle County Superior Court, DE
Claim Type	'Wrongful Death
Status	'Discovery Phase
Salgado [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Salgado
Month Served	'Feb-13
Jurisdiction	'US District Court, SD FL
Claim Type	'Wrongful Death
Status	'Stayed
Armstrong [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Armstrong
Month Served	'Apr-13
Jurisdiction	'General Court of Justice, Superior Div, Moore County, NC
Claim Type	'Wrongful Death
Status	'Discovery Phase
Barnes [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Barnes
Month Served	'Apr-13
Jurisdiction	'US District Court, WD PA
Claim Type	'Wrongful Death
Status	'Discovery Phase
Athetis [Member]	'
Loss Contingencies [Line Items]	'
Plaintiff	'Athetis
Month Served	'May-09
Jurisdiction	'Maricopa County Superior Court, AZ
Claim Type	'Wrongful Death
Status	'Dismissal Pending

Commitments_and_Contingencies_3

Commitments and Contingencies - Summary of Other Litigation Matters (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Turner [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'	'Turner
Month Served	'	'Feb-10
Jurisdiction	'	'US District Court, ED NC
Claim Type	'	'Wrongful death
Status	'	'Appeal fully briefed; Oral argument held on September 19, 2013
Bachtel [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'	'Bachtel
Month Served	'	'Aug-11
Jurisdiction	'	'14th Judicial District Circuit Court, Randolph County, MO
Claim Type	'	'Wrongful Death
Status	'	'Appeal fully briefed; date for Oral Argument has not been set
Glowczenski [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'Glowczenski	'Glowczenski
Month Served	'Oct-04	'Oct-04
Jurisdiction	'US District Court, ED NY	'US District Court, ED NY
Claim Type	'Wrongful Death	'Wrongful death
Status	'Court granted Motion for Summary Judgment in favor of TASER	'Notice of Appeal filed Septemebr 2013; opening brief is due January 2014

Commitments_and_Contingencies_4

Commitments and Contingencies - Summary of Cases Dismissed or Judgment Entered (Detail)	3 Months Ended	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013
Glowczenski [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'Glowczenski	'Glowczenski
Month Served	'Oct-04	'Oct-04
Jurisdiction	'US District Court, ED NY	'US District Court, ED NY
Claim Type	'Wrongful Death	'Wrongful death
Status	'Court granted Motion for Summary Judgment in favor of TASER	'Notice of Appeal filed Septemebr 2013; opening brief is due January 2014
McCarthy [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'McCarthy	'
Month Served	'Dec-12	'
Jurisdiction	'US District Court, WD NC	'
Claim Type	'Wrongful Death	'
Status	'Voluntary Dismissal	'
Piskura [Member]	'	'
Loss Contingencies [Line Items]	'	'
Plaintiff	'Piskura	'
Month Served	'May-10	'
Jurisdiction	'US District Court, OH	'
Claim Type	'Wrongful Death	'
Status	'Voluntary Dismissal	'

Commitments_and_Contingencies_5

Commitments and Contingencies - Information Regarding the Company's Insurance Coverage (Detail) (USD $)	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2013
2004 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2004
Policy Start Date	1-Dec-03
Policy End Date	1-Dec-04
Insurance Coverage	$2
Deductible Amount	0.1
Defense Costs Covered	'N
Remaining Insurance Coverage	2
Active Cases and Cases on Appeal	'Glowczenski
2005 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2005
Policy Start Date	1-Dec-04
Policy End Date	1-Dec-05
Insurance Coverage	10
Deductible Amount	0.3
Defense Costs Covered	'Y
Remaining Insurance Coverage	7
Active Cases and Cases on Appeal	'n/a
2006 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2006
Policy Start Date	1-Dec-05
Policy End Date	1-Dec-06
Insurance Coverage	10
Deductible Amount	0.3
Defense Costs Covered	'Y
Remaining Insurance Coverage	3.7
Active Cases and Cases on Appeal	'n/a
2007 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2007
Policy Start Date	1-Dec-06
Policy End Date	1-Dec-07
Insurance Coverage	10
Deductible Amount	0.3
Defense Costs Covered	'Y
Remaining Insurance Coverage	8
Active Cases and Cases on Appeal	'n/a
2008 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2008
Policy Start Date	1-Dec-07
Policy End Date	15-Dec-08
Insurance Coverage	10
Deductible Amount	0.5
Defense Costs Covered	'Y
Remaining Insurance Coverage	'
Active Cases and Cases on Appeal	'Grable, Koon, Peppler, Rich, Turner
2009 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2009
Policy Start Date	15-Dec-08
Policy End Date	15-Dec-09
Insurance Coverage	10
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	10
Active Cases and Cases on Appeal	'Athetis, Derbyshire
2010 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2010
Policy Start Date	15-Dec-09
Policy End Date	15-Dec-10
Insurance Coverage	10
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	10
Active Cases and Cases on Appeal	'Thompson, Shymko, Doan, Juran
2011 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2011
Policy Start Date	15-Dec-10
Policy End Date	15-Dec-11
Insurance Coverage	10
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	10
Active Cases and Cases on Appeal	'Wilson, Bachtel
Jan - Jun 2012 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Start Date	15-Dec-11
Policy End Date	25-Jun-12
Insurance Coverage	7
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	7
Active Cases and Cases on Appeal	'Ramsey, Duensing, Mitchell, Firman, Ricks
Jan - Jun 2012 [Member] \| Minimum [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Month Year	'2012-01
Jan - Jun 2012 [Member] \| Maximum [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Month Year	'2012-06
Jul - Dec 2012 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Start Date	25-Jun-12
Policy End Date	15-Dec-12
Insurance Coverage	12
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	12
Active Cases and Cases on Appeal	'Wingard, Manjares
Jul - Dec 2012 [Member] \| Minimum [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Month Year	'2012-07
Jul - Dec 2012 [Member] \| Maximum [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Month Year	'2012-12
2013 [Member]	'
Guarantees And Letters Of Credit [Line Items]	'
Policy Year	'2013
Policy Start Date	15-Dec-12
Policy End Date	15-Dec-13
Insurance Coverage	12
Deductible Amount	1
Defense Costs Covered	'N
Remaining Insurance Coverage	$12
Active Cases and Cases on Appeal	'Miller, Salgado, Barnes, Armstrong

Related_Party_Transactions_Add

Related Party Transactions - Additional Information (Detail) (Consulting Services [Member], USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Consulting Services [Member]	'	'	'	'	'
Related Party Transaction Due From To Related Party [Line Items]	'	'	'	'	'
Outstanding payables due to related party	$37,000	'	$37,000	'	$6,000
Transaction expenses incurred by parent company	$59,000	$39,000	$125,000	$141,000	'

Employee_Benefit_Plans_Additio

Employee Benefit Plans - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Compensation And Retirement Disclosure [Abstract]	'	'	'	'
Company's expected contributions to the plan	$6,000	'	'	'
Company's contributions to the plan	$188,000	$131,000	$520,000	$392,000

Segment_Data_Additional_Inform

Segment Data - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2013
	Segment
Segment Reporting [Abstract]	'
Number of reportable segments of company	2

Segment_Data_Summary_of_Operat

Segment Data - Summary of Operational Information Relative to the Company's Reportable Segments (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Sales Information [Line Items]	'	'	'	'
Product sales	$34,730,265	$28,613,527	$96,755,347	$82,239,187
Service revenue	466,557	159,429	1,050,924	397,604
Net sales	35,196,822	28,772,956	97,806,271	82,636,791
Cost of products sold	12,803,690	10,855,276	35,974,812	30,781,354
Cost of services delivered	297,127	1,114,668	1,542,087	3,308,794
Gross margin	22,096,005	16,803,012	60,289,372	48,546,643
Sales, general & administrative	12,775,980	9,539,996	34,898,005	26,798,629
Research & development	2,439,812	1,985,701	6,444,432	6,156,751
Litigation judgment recovery	'	'	'	-2,200,000
Income (loss) from operations	6,880,213	5,277,315	18,946,935	17,791,263
Purchases of property and equipment	335,425	285,307	1,174,420	887,609
Purchases of intangible assets	68,951	85,876	271,144	337,863
Depreciation and amortization	1,088,071	1,718,546	4,036,337	5,113,989
Taser Weapons [Member] \| Operating Segments [Member]	'	'	'	'
Sales Information [Line Items]	'	'	'	'
Product sales	31,626,484	27,085,180	89,901,959	78,774,581
Service revenue	'	'	'	'
Net sales	31,626,484	27,085,180	89,901,959	78,774,581
Cost of products sold	10,906,999	9,673,370	31,534,576	28,068,676
Cost of services delivered	'	'	'	'
Gross margin	20,719,485	17,411,810	58,367,383	50,705,905
Sales, general & administrative	11,130,971	8,618,250	30,622,109	24,373,401
Research & development	1,160,400	1,043,607	3,126,589	2,806,043
Litigation judgment recovery	'	'	'	-2,200,000
Income (loss) from operations	8,428,114	7,749,953	24,618,685	25,726,461
Purchases of property and equipment	229,965	217,092	827,896	530,383
Purchases of intangible assets	66,844	76,148	260,431	322,337
Depreciation and amortization	1,025,164	1,054,239	2,997,848	3,336,403
EVIDENCE.com & Video [Member] \| Operating Segments [Member]	'	'	'	'
Sales Information [Line Items]	'	'	'	'
Product sales	3,103,781	1,528,347	6,853,388	3,464,606
Service revenue	466,557	159,429	1,050,924	397,604
Net sales	3,570,338	1,687,776	7,904,312	3,862,210
Cost of products sold	1,896,691	1,181,906	4,440,236	2,712,678
Cost of services delivered	297,127	1,114,668	1,542,087	3,308,794
Gross margin	1,376,520	-608,798	1,921,989	-2,159,262
Sales, general & administrative	1,645,009	921,746	4,275,896	2,425,228
Research & development	1,279,412	942,094	3,317,843	3,350,708
Litigation judgment recovery	'	'	'	'
Income (loss) from operations	-1,547,901	-2,472,638	-5,671,750	-7,935,198
Purchases of property and equipment	105,460	68,215	346,524	357,226
Purchases of intangible assets	2,107	9,728	10,713	15,526
Depreciation and amortization	$62,907	$664,307	$1,038,489	$1,777,586

Subsequent_Event_Additional_In

Subsequent Event - Additional Information (Detail) (Familiar, Inc. [Member], Subsequent Event [Member], USD $)	Oct. 07, 2013
In Millions, except Share data, unless otherwise specified	Oct. 07, 2013
Familiar, Inc. [Member] \| Subsequent Event [Member]	'
Subsequent Event [Line Items]	'
Business acquisition, acquire in cash	$1.30
Business acquisition, acquire in shares of common stock	107,749
Business acquisition, value for shares issued	$1.40
Business acquisition, value for per shares	$13.33