Quarterly report pursuant to Section 13 or 15(d)

SHAREHOLDERS' EQUITY, Incentive and Equity Plan, and Combined Stock Option Activity (Details)

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SHAREHOLDERS' EQUITY, Incentive and Equity Plan, and Combined Stock Option Activity (Details) - USD ($)
 6 Months Ended 12 Months Ended
Jan. 16, 2019
Sep. 26, 2018
Feb. 28, 2019
Aug. 31, 2018
2014 Equity Plan [Member]        
Stock Option Activity [Abstract]        
Reserved shares of common stock for issuance (in shares)     1,600,000  
2004 Incentive Plan and 2014 Equity Plan [Member]        
Number of Options [Roll Forward]        
Outstanding, beginning of period (in shares)     535,500  
Granted (in shares) [1]     82,500  
Exercised (in shares)     (37,500)  
Forfeited or expired (in shares)     0  
Outstanding, end of period (in shares)     580,500 535,500
Options exercisable (in shares)     428,000  
Weighted Average Exercise Price [Roll Forward]        
Outstanding, beginning of period (in dollars per share)     $ 5.31  
Granted (in dollars per share)     10.48  
Exercised (in dollars per share)     3.06  
Forfeited or expired (in dollars per share)     0  
Outstanding, end of period (in dollars per share)     6.19 $ 5.31
Options exercisable (in dollars per share)     $ 5.30  
Stock Options, Additional Disclosure [Abstract]        
Weighted average remaining contractual term     6 years 6 months 6 years 14 days
Weighted average remaining contractual term options exercisable     5 years 7 months 24 days  
Approximate aggregate intrinsic value     $ 2,343,935 $ 3,180,990
Approximate aggregate intrinsic value options exercisable     $ 2,069,419  
2004 Incentive Plan and 2014 Equity Plan [Member] | Mr. Harding [Member]        
Number of Options [Roll Forward]        
Granted (in shares)   50,000    
2004 Incentive Plan and 2014 Equity Plan [Member] | Non-Employee Director [Member]        
Number of Options [Roll Forward]        
Granted (in shares) 32,500      
[1] Includes 50,000 shares granted to Mr. Harding on September 26, 2018 and 32,500 total shares granted to non-employee directors on January 16, 2019.