Stock-Based Compensation (Details Textual) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended
	Feb. 28, 2013	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expense recognized for stock option		$ 268	$ 348
Shares available for future grants		1,295,899
Stock-Based Compensation (Textual) [Abstract]
Expiry period of option plan		10 years
Cash received from options and warrants exercised		18	33
Expected dividend yield		0.00%	0.00%
Number of stock options to purchase		1,435,314
Common stock at exercise prices range, minimum		$ 1.48
Common stock at exercise prices range, maximum		$ 11.11
Weighted average fair value of options granted		$ 1.16	$ 2.62
Fully vested options excluded	900,000	900,000
Total intrinsic value of options exercised		17	74
Employee service Share-Based compensation, nonvested awards, Total compensation Cost not yet recognized, period for recognition		1 year 6 months
Total options outstanding		1,435,314		2,426,533
Options nonvested		675,025
Total unrecognized compensation cost related to unvested options		696
Total unrecognized compensation cost to be recognized over the requisite service period		510
Shares available for future grants		1,295,899
2013 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants		3,500,000
Stock-Based Compensation (Textual) [Abstract]
Shares available for future grants		3,500,000
Performance Milestones [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options vested upon the attainment of milestone		242,825
Total unrecognized compensation cost		186
Compensation expense recognized for stock option		$ 125	$ 146