Stockholders' Equity (Narrative) (Details) - USD ($) | Nov. 08, 2016 | Nov. 02, 2016 | Jul. 27, 2016 | Sep. 30, 2016 | Sep. 30, 2016 | Dec. 31, 2015 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Common stock, shares issued | | | | 52,268,302 | 52,268,302 | 52,113,059 |
Price per share | | | | $ 0.001 | $ 0.001 | $ 0.001 |
Common stock, par value | | | | $ 0.001 | $ 0.001 | $ 0.001 |
Officer [Member] | $0.91 [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | 25.00% | | | | |
2010 Stock Incentive Plan [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Shares available for grant | | | | 8,122,983 | 8,122,983 | |
2010 Stock Incentive Plan [Member] | Non-Employee Directors [Member] | Restricted Stock [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Restricted shares awarded | | | | | 211,000 | |
Fair value of restricted shares awarded | | | | | $ 332,000 | |
2010 Stock Incentive Plan [Member] | Non-Employee Directors [Member] | Restricted Stock [Member] | June 1, 2016 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 50.00% | |
2010 Stock Incentive Plan [Member] | Non-Employee Directors [Member] | Restricted Stock [Member] | September 1, 2016 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 25.00% | |
2010 Stock Incentive Plan [Member] | Non-Employee Directors [Member] | Restricted Stock [Member] | December 1, 2016 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 25.00% | |
2010 Stock Incentive Plan [Member] | Certain Consultants [Member] | $1.64 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 100,000 | |
Stock options granted, average exercise price | | | | $ 1.64 | $ 1.64 | |
2010 Stock Incentive Plan [Member] | Certain Consultants [Member] | $1.64 [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 25.00% | |
2010 Stock Incentive Plan [Member] | Certain Consultants [Member] | $1.64 [Member] | Performance Shares [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 50,000 | |
Stock options nonvested | | | | 50,000 | 50,000 | |
2010 Stock Incentive Plan [Member] | Certain Consultants [Member] | $1.35 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | 120,000 | | |
Stock options granted, average exercise price | | | | $ 1.35 | $ 1.35 | |
Stock options vesting period | | | | 24 months | | |
2010 Stock Incentive Plan [Member] | Certain Employees [Member] | $1.64 [Member] | Retention Options [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 35,000 | |
Stock options granted, average exercise price | | | | $ 1.64 | $ 1.64 | |
2010 Stock Incentive Plan [Member] | Certain Employees [Member] | $1.37 [Member] | Retention Options [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 73,000 | |
Stock options granted, average exercise price | | | | $ 1.37 | $ 1.37 | |
2010 Stock Incentive Plan [Member] | Certain Employees [Member] | $1.64, 1.37 [Member] | Retention Options [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options vesting period | | | | | 1 year | |
2010 Stock Incentive Plan [Member] | Certain Employees [Member] | $1.35 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | 12,500 | | |
Stock options granted, average exercise price | | | | $ 1.35 | $ 1.35 | |
2010 Stock Incentive Plan [Member] | Certain Employees [Member] | $1.35 [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | 25.00% | | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $1.57 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 886,000 | |
Stock options granted, average exercise price | | | | $ 1.57 | $ 1.57 | |
Stock options nonvested | | | | 4,000 | 4,000 | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $1.57 [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 25.00% | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $1.57 [Member] | Performance Shares [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 250,000 | |
Stock options granted, average exercise price | | | | $ 1.57 | $ 1.57 | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $1.24 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | | | 120,000 | |
Stock options granted, average exercise price | | | | $ 1.24 | $ 1.24 | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $1.24 [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | | | 25.00% | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $0.89 [Member] | Subsequent Event [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | 560,000 | | | | | |
Stock options granted, average exercise price | $ 0.89 | | | | | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $0.89 [Member] | Subsequent Event [Member] | Stock Option [Member] | December 31, 2017 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | 50.00% | | | | | |
2010 Stock Incentive Plan [Member] | Certain Officers And Employees [Member] | $0.89 [Member] | Subsequent Event [Member] | Stock Option [Member] | December 31, 2018 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | 50.00% | | | | | |
2010 Stock Incentive Plan [Member] | Officer [Member] | $1.31 [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | | 125,000 | | | |
Stock options granted, average exercise price | | | $ 1.31 | | | |
2010 Stock Incentive Plan [Member] | Officer [Member] | $1.31 [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | | | 25.00% | | | |
2010 Stock Incentive Plan [Member] | Officer [Member] | $0.91 [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | | 50,000 | | | | |
Stock options granted, average exercise price | | $ 0.91 | | | | |
2010 Stock Incentive Plan [Member] | Consultant [Member] | $0.89 [Member] | Subsequent Event [Member] | Stock Option [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Stock options granted | 105,000 | | | | | |
Stock options granted, average exercise price | $ 0.89 | | | | | |
2010 Stock Incentive Plan [Member] | Consultant [Member] | $0.89 [Member] | Subsequent Event [Member] | Stock Option [Member] | Share-based Compensation Award, Tranche One [Member] | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | | | | | | |
Vesting percentage | 25.00% | | | | | |