Annual report pursuant to Section 13 and 15(d)

Capital Stock, Stock Plans, Warrants and Stock-Based Compensation (Details Narrative)

v3.8.0.1
Capital Stock, Stock Plans, Warrants and Stock-Based Compensation (Details Narrative)
$ / shares in Units, $ in Thousands
12 Months Ended
Oct. 19, 2017
$ / shares
shares
Jul. 27, 2017
$ / shares
shares
Jan. 13, 2017
$ / shares
shares
Jul. 28, 2016
$ / shares
shares
May 15, 2016
$ / shares
shares
May 31, 2008
$ / shares
Dec. 31, 2017
USD ($)
Integer
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Aug. 02, 2016
$ / shares
shares
Aug. 02, 2013
USD ($)
Common stock authorized             30,000,000 30,000,000    
Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term             4 years 7 months 6 days [1] 3 years 8 months 12 days [2]    
Number of stock option shares granted             428,000 62,000    
Stock options, grants in period, exercise price | $ / shares             $ 3.64 $ 4.09    
Stock options granted contractual term             6 years 7 months 6 days      
Unrecognized compensation cost related to unvested options | $             $ 578      
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, next twelve months | $             151      
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year two | $             126      
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year three | $             114      
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, year four | $             114      
Employee and director service share-based compensation nonvested awards, compensation not yet recognized, stock options, thereafter | $             $ 73      
Stock option shall become exercisable upon attainment of performance milestone             179,467      
Stock option term, description             The term of the Ferguson Stock Option is seven (7) years from the grant date.      
Consulting expenses included in selling, general and administrative expenses and additional paid-in capital | $             $ 20      
Number of stock options that becomes vested upon the tranches the 1st milestones             10,000      
Volatility             52.65%      
Risk free interest rate             2.30%      
Dividend                  
Allocated share-based compensation expense | $             $ 124 $ 98    
Number of common shares reserved for future issuance             624,800      
Robert Ferguson [Member]                    
Monthly compensation fees | $             $ 4      
Two Lenders [Member] | Warrant [Member]                    
Class of warrant or right, number of securities called by warrants or rights                 70,000  
Class of warrant or right, exercise price of warrants or rights | $ / shares                 $ 2.23  
Due to related parties | $                   $ 3,000
January 27, 2018 [Member] | Robert Ferguson [Member]                    
Stock option shall become exercisable upon attainment of performance milestone             10,000      
Number of gallons | Integer             3      
January 27, 2019 [Member] | Robert Ferguson [Member]                    
Stock option shall become exercisable upon attainment of performance milestone             30,000      
Number of gallons | Integer             2,000      
January 27, 2021 [Member] | Robert Ferguson [Member]                    
Stock option shall become exercisable upon attainment of performance milestone             60,000      
Number of gallons | Integer             50,000      
2003 Outside Directors Stock Plan [Member]                    
Stock options granted vesting period             180 days      
Stock options, expiration period             10 years      
Share-based compensation arrangement by share-based payment award percentage of stock in lieu of fee payable             65.00%      
Percentage of directors fees, description             The 2003 Plan also provides for the issuance to each outside director a number of shares of the Company’s Common Stock in lieu of 65% or 100% (based on option elected by each director) of the fee payable to the eligible director for services rendered as a member of the Board of Directors (“Board”). The number of shares issued is determined at 75% of the market value as defined in the plan.      
Number of additional common shares authorized   300,000                
Common stock authorized             1,100,000      
Number of shares available for issuance             391,215      
2003 Outside Directors Stock Plan [Member] | Re-election [Member]                    
Options granted to purchase shares             2,400      
2003 Outside Directors Stock Plan [Member] | Maximum [Member] | Election [Member]                    
Options granted to purchase shares             6,000      
2010 Stock Option Plan [Member]                    
Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term             10 years      
Fair market value of shares, granted description             The term of each stock option granted is to be fixed by the Compensation and Stock Option Committee (the “Compensation Committee”), but no stock option is exercisable more than ten years after the grant date, or in the case of an incentive stock option granted to a 10% stockholder, five years after the grant date. The exercise price of any ISO granted under the 2010 Plan to an individual who is not a 10% stockholder at the time of the grant is not to be less than the fair market value of the shares at the time of the grant, and the exercise price of any incentive stock option granted to a 10% stockholder is not to be less than 110% of the fair market value at the time of grant. The exercise price of any NQSOs granted under the plan is not to be less than the fair market value of the shares at the time of grant.      
Fair market value of shares, granted percentage             1.10      
Shares remaining available for issuance             140,000      
2010 Stock Option Plan [Member] | Ten Percent of Stockholder [Member]                    
Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term             5 years      
2010 Stock Option Plan [Member] | Non-qualified Stock Options and Incentive Stock Options [Member] | Officers and Employees [Member]                    
Number of shares available for issuance             200,000      
2010 Stock Option Plan [Member] | Incentive Stock Options [Member] | Mr. Mark Duff [Member]                    
Stock options granted vesting period         3 years          
Number of stock option shares granted         50,000          
Stock options, grants in period, exercise price | $ / shares         $ 3.97          
Stock options granted contractual term         6 years          
2010 Stock Option Plan [Member] | Maximum [Member] | Non-qualified Stock Options and Incentive Stock Options [Member] | Officers and Employees [Member]                    
Options granted to purchase shares             200,000      
2017 Stock Option Plan [Member]                    
Number of shares available for issuance             130,000      
Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term             10 years      
Fair market value of shares, granted description             The term of each stock option granted under the 2017 Plan shall be fixed by the Compensation Committee, but no stock options will be exercisable more than ten years after the grant date, or in the case of an ISO granted to a 10% stockholder, five years after the grant date. The exercise price of any ISO granted under the 2017 Plan to an individual who is not a 10% stockholder at the time of the grant shall not be less than the fair market value of the shares at the time of the grant, and the exercise price of any incentive stock option granted to a 10% stockholder shall not be less than 110% of the fair market value at the time of grant. The exercise price of any NQSOs granted under the plan shall not be less than the fair market value of the shares at the time of grant.      
Fair market value of shares, granted percentage             1.10      
2017 Stock Option Plan [Member] | Common Stock [Member]                    
Stock options, expiration date             Jul. 10, 2020      
2017 Stock Option Plan [Member] | Common Stock One [Member]                    
Stock options, expiration date             May 15, 2022      
2017 Stock Option Plan [Member] | Ten Percent of Stockholder [Member]                    
Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term             5 years      
2017 Stock Option Plan [Member] | Robert Ferguson [Member]                    
Common stock exercise price per share | $ / shares             $ 3.65      
2017 Stock Option Plan [Member] | Non-qualified Stock Options and Incentive Stock Options [Member]                    
Number of shares available for issuance             540,000      
2017 Stock Option Plan [Member] | Incentive Stock Options [Member]                    
Stock options granted vesting period   5 years                
Stock options, grants in period, exercise price | $ / shares   $ 3.65                
Stock options granted contractual term   6 years                
2017 Stock Option Plan [Member] | Incentive Stock Options [Member] | Louis F. Centofanti [Member]                    
Number of stock option shares granted   50,000                
2017 Stock Option Plan [Member] | Incentive Stock Options [Member] | Mr. Mark Duff [Member]                    
Number of stock option shares granted   100,000                
2017 Stock Option Plan [Member] | Incentive Stock Options [Member] | Mr. Ben Naccarato [Member]                    
Number of stock option shares granted   50,000                
2017 Stock Option Plan [Member] | Incentive Stock Options [Member] | Employees [Member]                    
Stock options granted vesting period 5 years                  
Number of stock option shares granted 110,000                  
Stock options, grants in period, exercise price | $ / shares $ 3.60                  
Stock options granted contractual term 6 years                  
2017 Stock Option Plan [Member] | Maximum [Member] | Common Stock [Member]                    
Options granted to purchase shares             10,000      
2017 Stock Option Plan [Member] | Maximum [Member] | Common Stock One [Member]                    
Options granted to purchase shares             50,000      
2017 Stock Option Plan [Member] | Maximum [Member] | Robert Ferguson [Member]                    
Options granted to purchase shares             100,000      
2003 Outside Directors Stock Plan [Member] | Non-qualified Stock Options [Member] | New Director [Member]                    
Stock options granted vesting period     180 days              
Number of stock option shares granted     6,000              
Stock options, grants in period, exercise price | $ / shares     $ 3.79              
Stock options granted contractual term     10 years              
2003 Outside Directors Stock Plan [Member] | Non-qualified Stock Options [Member] | Six Re-elected Directors [Member]                    
Stock options granted vesting period   180 days                
Number of stock option shares granted   12,000                
Stock options, grants in period, exercise price | $ / shares   $ 3.55                
Stock options granted contractual term   10 years                
2003 Outside Directors Stock Plan [Member] | Non-qualified Stock Options [Member] | Seven Re-Elected Directors [Member]                    
Stock options granted vesting period       6 months            
Number of stock option shares granted       12,000            
Stock options, grants in period, exercise price | $ / shares       $ 4.60            
Stock options granted contractual term       10 years            
2003 Outside Directors Stock Option Plan [Member]                    
Percentage of directors fees, description             As a member of the Board, each director elects to receive either 65% or 100% of the director’s fee in shares of our Common Stock. The number of shares received is calculated based on 75% of the fair market value of our Common Stock determined on the business day immediately preceding the date that the quarterly fee is due.      
Stock issued during period, shares, share-based compensation, gross             61,598 55,793    
The 2003 Outside Directors Stock Plan [Member] | Portion of Director Fee Earned in Common Stock [Member]                    
Allocated share-based compensation expense | $             $ 234 $ 233    
Right Plan [Member]                    
Common stock ownership percentage trigger for share rights           20.00%        
Share multiplier for common stockholders not part of non-board approved shareholders           0.20        
Purchase price for repurchase of rights | $ / shares           $ 0.001        
Acquired percentage of the company that triggers share rights           50.00%        
Purchase price of rights | $ / shares           $ 13        
Purchase price multiplier for common stockholder when acquired percentage is triggered           0.20        
Rights plan terminates           May 02, 2018        
[1] Options with exercise prices ranging from $2.79 to $13.35
[2] Options with exercise prices ranging from $2.79 to $14.75