Annual report pursuant to Section 13 and 15(d)

STOCKHOLDERS??? EQUITY AND EARNINGS PER SHARE (Details)

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STOCKHOLDERS’ EQUITY AND EARNINGS PER SHARE (Details) - USD ($)
9 Months Ended 12 Months Ended
Feb. 11, 2020
Aug. 09, 2019
Jul. 31, 2019
Apr. 06, 2018
Mar. 27, 2018
Sep. 30, 2019
Dec. 31, 2019
Dec. 31, 2018
Nov. 26, 2018
Class of Stock [Line Items]                  
Common stock, shares authorized (in shares)             100,000,000 100,000,000  
Sales of common stock, net of offering costs (in shares)   396,000 3,960,560            
Share price (in dollars per share)     $ 2.53            
Net proceeds from the sale of common stock from private placement offerings     $ 10,000,000       $ 9,919,000 $ 0  
Sale of common stock, net of offering costs   $ 3,000,000 $ 9,900,000            
Shares, outstanding   1,193,762              
Expense, tax benefit           $ 2,766,798      
Gross proceeds from the second closing           $ 7,000,000      
Preferred stock, shares authorized (in shares)             3,000,000 3,000,000  
Stock Repurchase Program [Abstract]                  
Authorized repurchase amount                 $ 4,000,000.0
Repurchase and retirement of common stock               $ (152,000)  
Repurchase and retirement of common stock, average price per share (in dollars per share)             $ 1.88    
Shares excluded from computation of earnings per share (in shares)             6,030,618 6,561,974  
Subsequent Event                  
Class of Stock [Line Items]                  
Sale of common stock, net of offering costs $ 28,800,000                
Underwritten Public Offering                  
Class of Stock [Line Items]                  
Sales of common stock, net of offering costs (in shares)       857,142 5,714,286        
Share price (in dollars per share)       $ 3.50 $ 3.50        
Net proceeds from the sale of common stock from private placement offerings       $ 3,000,000 $ 20,000,000        
Sale of common stock, net of offering costs       $ 2,800,000 $ 18,400,000        
Shelf registration statement, public offerings, maximum aggregate proceeds             $ 50,000,000.0    
Underwritten Public Offering | Subsequent Event                  
Class of Stock [Line Items]                  
Sales of common stock, net of offering costs (in shares) 19,166,667                
Reserved for future issuance (in shares) 21,200,000                
Common stock options                  
Stock Repurchase Program [Abstract]                  
Repurchase and retirement of common stock (in shares)             0 (80,100)  
Park City Capital                  
Class of Stock [Line Items]                  
Sale of common stock, net of offering costs   $ 1,000,000              
Restricted stock units                  
Stock Repurchase Program [Abstract]                  
Shares excluded from computation of earnings per share (in shares)             2,556,004 1,921,594  
Warrant                  
Stock Repurchase Program [Abstract]                  
Shares excluded from computation of earnings per share (in shares)             2,134,362 3,385,100  
Common stock options                  
Stock Repurchase Program [Abstract]                  
Shares excluded from computation of earnings per share (in shares)             1,340,252 1,255,280