Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2009
Summary of Significant Accounting Policies [Abstract]
Term of warranty		1 year
Period of post customer support service (PCS)		1 year
Cash and Cash Equivalents [Abstract]
Money market accounts		$ 9,500,000	$ 16,400,000
Maximum maturity period for highly liquid investments to be considered cash equivalents		3 months
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance		2,000	136,000	2,040,000
Current year provision		38,000	0	(230,000)	1,600,000
Allowance for Doubtful Accounts Receivable, Write-offs		(38,000)	(134,000)	(1,674,000)
Ending balance		2,000	2,000	136,000
Software Development Costs, net [Abstract]
Software Development Costs Useful Life		3 years
Write down of capitalized software development costs	2,174,000	2,174,000	0	0
Development Expenditures [Abstract]
Development Expenditures		2,900,000	2,400,000	1,800,000
Goodwill and Intangible Assets [Abstract]
Number of reporting units		1
Goodwill impairment loss		4,462,000	0	0
Foreign Currency Translation [Abstract]
Foreign currency transaction gains (losses)		(111,000)	313,000	(136,000)
Product Warranty [Roll Forward]
Beginning balance		2,107,000	2,300,000	1,680,000
Current year provision		809,000	993,000	987,000
Current year claims		(1,065,000)	(1,215,000)	(352,000)
Currency adjustment		0	29,000	(15,000)
Ending balance		1,851,000	2,107,000	2,300,000
Stock-Based Compensation [Abstract]
Share based compensation expense		810,000	914,000	727,000
Unrecognized compensation expense		1,500,000
Numerator: [Abstract]
Net income (loss) attributed to common stockholders		$ (10,511,000)	$ 1,174,000	$ 2,801,000
Denominator: [Abstract]
Weighted-average shares outstanding for basic earnings per share (in shares)		18,150,915	18,383,564	18,952,401
Effect of Dilutive Securities: [Abstract]
Employee stock options and warrants (in shares)		0	74,893	170,502
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share (in shares)		18,150,915	18,458,457	19,122,903
Shares related to dilutive securities excluded because inclusion would be anti-dilutive (in shares)		2,919,521	2,885,809	1,701,794
In the money options and warrants (in shares)		3,056
Equipment, Software and Leasehold Improvements, net [Member] | Maximum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life		10 years
Equipment, Software and Leasehold Improvements, net [Member] | Minimum [Member]
Equipment, software and leasehold improvements, net [Abstract]
Estimated useful life		3 years