Property and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property and Equipment (Textual) [Abstract]
Write/down and disposal of property and equipment, net		$ 0.2	$ 2.8	$ 0.1
Impairment charge	2.0
Property and Equipment (Additional Textual) [Abstract]
Depreciation and amortization expense relative to property and equipment		6.3	7.5	6.8
Cost of products sold and services provided		4.7	5.2	4.3
AXON Equipment [Member]
Property and Equipment (Textual) [Abstract]
Write/down and disposal of property and equipment, net			1.4
Surplus Equipment and Billing Software [Member]
Property and Equipment (Textual) [Abstract]
Write/down and disposal of property and equipment, net			0.8
TASER X3 Equipment [Member]
Property and Equipment (Textual) [Abstract]
Write/down and disposal of property and equipment, net			0.6
Proctor Product Line [Member]
Property and Equipment (Textual) [Abstract]
Impairment charge			1.4
Proctor Product Line, Property and Equipment [Member]
Property and Equipment (Textual) [Abstract]
Impairment charge			$ 0.7