Business Acquisitions (Details) - USD ($)			3 Months Ended		9 Months Ended
	Jul. 16, 2015	May 05, 2015	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2016	Dec. 31, 2015
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill			$ 8,885,000		$ 8,885,000	$ 9,596,000
MediaSolv Solutions Corporation
Business Acquisition [Line Items]
Consideration transferred		$ 8,800,000	200,000	$ 1,000,000	1,200,000
Cash acquired		100,000
Payments to acquire businesses, net		7,800,000
Contingent liability		1,000,000
Additional earn-out provisions and compensation adjustments		$ 4,000,000
Intangible assets, weighted average useful life		6 years 6 months
Acquisition transaction costs		$ 200,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable and other current assets		590,000
Inventory		35,000
Property and equipment		53,000
Intangible assets		4,145,000
Goodwill		5,496,000
Accounts payable and accrued liabilities		(697,000)
Deferred revenue		(111,000)
Deferred income tax liabilities, net		(688,000)
Total purchase price		$ 8,823,000
MediaSolv Solutions Corporation | Commission Expenses | Accrued Liabilities
Business Acquisition [Line Items]
Contingent liability			200,000		200,000
Tactical Safety Responses Limited
Business Acquisition [Line Items]
Consideration transferred	$ 3,300,000
Cash acquired	$ 700,000
Intangible assets, weighted average useful life	7 years
Acquisition transaction costs	$ 100,000
Cash payments to acquire business	4,000,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable and other current assets	726,000
Inventory	497,000
Property and equipment	583,000
Intangible assets	881,000
Other Assets	20,000
Goodwill	1,441,000
Accounts payable and accrued liabilities	(207,000)
Notes payable	(169,000)
Deferred income tax liabilities, net	(438,000)
Total purchase price	$ 3,334,000
Tactical Safety Responses Limited | Commission Expenses | Accrued Liabilities
Business Acquisition [Line Items]
Contingent liability			$ 100,000		$ 100,000