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Stock Incentive Plans (Tables)
9 Months Ended
Sep. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of restricted stock units
Number of restricted stock units   Target price  
15,000   $ 6.50  
15,000   $ 8.00  
15,000   $ 9.50  
14,098   $ 11.00  
Schedule of fair value of restricted stock units
Daily expected stock price volatility     4.4237 %
Daily expected mean return on equity     (0.2226 %)
Daily expected dividend yield     0.0 %
Average daily risk free interest rate     0.0063 %
Schedule of activity of stock incentive and equity plans
    Shares
available
for grant
    Number of
options
outstanding
    Weighted-
average option
exercise
price
    Number of
restricted
stock and
board
shares
issued
    Number of
restricted
stock units
outstanding
 
At January 1, 2017     243,218       253,541     $ 37.30       76,483       12,584  
Granted     (70,098 )                 11,000       59,098  
Exercised/issued                             (49,156 )
Cancelled/forfeited     105,836       (116,965 )     53.91              
At September 30, 2017     278,956       136,576     $ 19.23       87,483       22,526  
Schedule of non-vested options
    Options    

Weighted-

average

exercise

price

 
Non-vested at January 1, 2017     148,983     $ 10.20  
Granted            
Vested     (42,757 )     12.79  
Forfeited     (47,825 )     9.83  
Non-vested at September 30, 2017     58,401     $ 8.59  
Restricted Stock [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of restricted stock units
Non-vested restricted stock as of January 1, 2017     16,470  
Granted     11,000  
Vested     (22,566 )
Non-vested restricted stock as of September 30, 2017     4,904  
Restricted Stock Units (RSUs) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Summary of restricted stock units
   

RSUs

outstanding

   

Weighted average
price at

time of
grant

   

Aggregate intrinsic

value

 
Non-vested restricted stock units as of January 1, 2017     12,584     $ 16.00          
Granted     59,098       6.30          
Vested     (49,156 )     8.49          
Cancelled                    
Non-vested at September 30, 2017     22,526     $ 6.94     $ 186,065