Stock-Based Compensation and Expense (Details Textual)	1 Months Ended	12 Months Ended
	Aug. 31, 2009 USD ($)	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) Asset_Recoupment $ / shares shares	Nov. 07, 2014 shares	Dec. 31, 2009 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, additional shares						5,000,000
Term of stock options		10 years
Stock option vesting period		4 years
Weighted average grant date fair value of options granted | $ / shares		$ 2.15	$ 1.27
Aggregate intrinsic value of stock options exercised | $		$ 900,000	$ 25,000
Stock options vested		719,293	648,765
Total fair value of options vested | $		$ 700,000	$ 500,000
Unamortized compensation cost | $		$ 1,600,000
Compensation related cost expected to be recognized, weighted average period		2 years 8 months 12 days
Total income tax expense recognized for book purposes | $		$ 0	23,000
Tax benefit realized | $		$ 0	$ 0
Common stock exercisable share				755,077	750,195
Common stock exercisable price per share | $ / shares				$ 0.01
Common stock, shares retained as settlement of exercise price					4,882
Common stock exercisable share under warrants, Cambium Specified Asset Recoupment Amount				299,847
Common stock exercisable share under warrants, Formula Amount				455,230
Asset recoupment amount multiple | Asset_Recoupment				0.45
Denominator amount for calculating quotient aggregate net recoveries | $ / shares				$ 6.50
Common stock, shares outstanding		45,735,818	45,474,000
Time period after merger		2 years
Denominator amount for calculating formula amount | $ / shares				$ 6.50
VLCY
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, shares outstanding		29,874,145
Warrants
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Recoveries net with respect to employee embezzlement matter | $				$ 4,300,000
Equity cure payment | $	$ 3,000,000
Warrants | VLCY
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Shares in excess of outstanding shares surrendered				29,999
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option vesting period		4 years
Unamortized compensation cost | $		$ 2,000
Compensation related cost expected to be recognized, weighted average period		2 years