5. Stock Options, Restricted Stock and Share-Based Compensation (Details) - Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range	6 Months Ended
	Jun. 30, 2016 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Underlying Shares, Options Outstanding (in Shares) | shares	2,689,655
Underlying Shares, Options Exercisable (in Shares) | shares	1,434,000
$0.85 - $1.43 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	$ 0.85
Range of Exercise Prices, Upper Limit	$ 1.43
Underlying Shares, Options Outstanding (in Shares) | shares	185,100
Weighted Average Remaining Contractual Life, Options Outstanding	3 years 105 days
Weighted Average Exercise Price, Options Outstanding	$ 1.15
Underlying Shares, Options Exercisable (in Shares) | shares	185,100
Weighted Average Exercise Price, Options Exercisable	$ 1.15
$1.47 - $2.27 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	1.47
Range of Exercise Prices, Upper Limit	$ 2.32
Underlying Shares, Options Outstanding (in Shares) | shares	652,205
Weighted Average Remaining Contractual Life, Options Outstanding	4 years 51 days
Weighted Average Exercise Price, Options Outstanding	$ 1.83
Underlying Shares, Options Exercisable (in Shares) | shares	618,925
Weighted Average Exercise Price, Options Exercisable	$ 1.84
$2.32 - $3.50 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	2.34
Range of Exercise Prices, Upper Limit	$ 3.52
Underlying Shares, Options Outstanding (in Shares) | shares	1,389,350
Weighted Average Remaining Contractual Life, Options Outstanding	7 years 76 days
Weighted Average Exercise Price, Options Outstanding	$ 3.13
Underlying Shares, Options Exercisable (in Shares) | shares	499,975
Weighted Average Exercise Price, Options Exercisable	$ 2.78
$3.52 - $4.21 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of Exercise Prices, Lower Limit	3.53
Range of Exercise Prices, Upper Limit	$ 4.21
Underlying Shares, Options Outstanding (in Shares) | shares	463,000
Weighted Average Remaining Contractual Life, Options Outstanding	7 years 160 days
Weighted Average Exercise Price, Options Outstanding	$ 3.85
Underlying Shares, Options Exercisable (in Shares) | shares	130,000
Weighted Average Exercise Price, Options Exercisable	$ 4.10