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Stock Incentive Plans (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
Aug. 31, 2007
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Stock Incentive Plans (Textual)          
Stock option compensation expense   $ 40,000 $ 151,000 $ 238,000 $ 312,000
Unrecognized compensation cost   296,000   $ 296,000  
Stock-based plan expect to recognize weighted-average period       2 years 6 months 4 days  
Restricted stock [Member]          
Stock Incentive Plans (Textual)          
Stock option compensation expense   57,000 143,000 $ 61,000 281,000
Restricted Stock Units [Member]          
Stock Incentive Plans (Textual)          
Stock option compensation expense   188,000 $ 67,000 324,000 $ 138,000
Unrecognized compensation cost   $ 166,000   $ 166,000  
Stock-based plan expect to recognize weighted-average period       7 months 6 days  
Closing price of common stock   $ 5.50   $ 5.50  
Number of restricted stock units granted       15,000  
Restricted Stock Units [Member] | Key Executive [Member]          
Stock Incentive Plans (Textual)          
Closing price of common stock   $ 6.30   $ 6.30  
Number of restricted stock units granted       59,098  
Grant date fair value of restricted stock units       $ 322,623  
Fair value of restricted stock units, description      
The daily expected stock price volatility is based on a four-year historical volatility of the Company’s common stock. The daily-expected dividend yield is based on annual expected dividend payments. The average daily risk-free interest rate is based on the three-year treasury yield as of the grant date. Each of the tranches is calculated to have its own fair value and requisite service period. The fair value of each tranche is amortized over the requisite or derived service period, which is up to four years.
  
2001 Plan [Member]          
Stock Incentive Plans (Textual)          
Maximum number of shares awarded or sold   144,967   144,967  
Option, Description       Each option granted under the 2001 Plan entitled the holder to purchase one share of common stock at the specified option exercise price.  
Plan expiration date       Aug. 02, 2011  
2016 Plan [Member]          
Stock Incentive Plans (Textual)          
Plan expiration date       Mar. 17, 2026  
Common stock reserved for future issuance of awards   222,980   222,980  
2007 Plan [Member]          
Stock Incentive Plans (Textual)          
Maximum number of shares awarded or sold 440,769        
Plan expiration date Jun. 24, 2016