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Share-based Compensation (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 9 Months Ended 28 Months Ended
Jul. 11, 2017
Mar. 17, 2016
Sep. 30, 2005
Dec. 31, 1999
Sep. 30, 2017
Sep. 30, 2003
Mar. 31, 2002
Dec. 31, 2016
Dec. 12, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted         105,000        
Stock options vesting description         The options granted subsequent to March 2002, all vesting schedules are based on 3 or 4-year vesting schedules, with either one-third or one-fourth vesting on the first anniversary and the remaining options vesting ratably over the remainder of the vesting term. Generally, directors and officers have 3-year vesting schedules and all other employees have 4-year vesting schedules. Additionally, in the event of a change in control or the occurrence of a corporate transaction, the Company’s Board of Directors has the authority to elect that all unvested options shall vest and become exercisable immediately prior to the event or closing of the transaction.        
Number of stock options shares outstanding         767,156     850,232  
Number of share options exercised         (178,662)        
Unrecognized compensation cost related to non-vested stock options, net of forfeitures         $ 975        
Recognized over weighted average period         1 year 11 months 26 days        
Stock options repurchased during the period         139,570        
Percentage of shares excess of combined voting power of parents and subsidiary         5.00%        
Number of stock options shares purchased under the plan during the period         2,500        
Number of stock options fair value purchased under the plan during the period         $ 25        
Percentage of common stock purchase of period at price equal to fair market value         85.00%        
Percentage of fair value of common stock discount         15.00%        
1998 Incentive Plan [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted       1,066,000     1,248,250    
Stock options vested period       9 years 9 months 18 days     6 years    
Stock options accelerated vesting shares     300,494     637,089      
Maximum number of stock options grants         2,500,000        
Number of stock options shares outstanding                
Number of share options exercised 50,000                
2007 Equity Incentive Plan [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Maximum number of stock options grants                 2,000,000
Number of stock options shares outstanding         767,156        
Number of stock options shares authorized and unissued         471,500        
1998 Incentive Plan and 2007 Equity Incentive Plan [Member] | Employees [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Stock options repurchased during the period   225,542              
Stock option average purchase price per share   $ 7.77              
2014 Employee Stock Purchase Plan [Member]                  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                  
Number of stock options granted         471,160        
Number of shares available for offerings         500,000