Quarterly Results (unaudited) (Tables)
 12 Months Ended
Jun. 30, 2018
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]  
Schedule of quarterly results

    Fiscal 2018  
    Q1     Q2     Q3     Q4     Year  
Revenue                                        
Product   $ 7,280,723     $ 8,323,845     $ 8,429,132     $ 8,636,126     $ 32,669,826  
License     —       —       4,010,000       —       4,010,000  
Total revenue     7,280,723       8,323,845       12,439,132       8,636,126       36,679,826  
Cost of goods sold     2,177,355       2,465,826       2,631,893       2,519,824       9,794,898  
Gross profit     5,103,368       5,858,019       9,807,239       6,116,302       26,884,928  
                                         
Operating expenses:                                        
Selling expenses     3,570,713       3,919,515       4,447,421       4,430,732       16,368,381  
General and administrative expenses     2,573,131       2,380,860       1,925,086       2,184,062       9,063,139  
Research and development expenses     901,274       957,204       1,199,895       1,335,776       4,394,149  
Total operating expenses     7,045,118       7,257,579       7,572,402       7,950,570       29,825,669  
Income (loss) from operations     (1,941,750 )     (1,399,560 )     2,234,837       (1,834,268 )     (2,940,741 )
                                         
Other income (expense):                                        
Interest income     13       45       9,074       16,991       26,123  
Royalty income and license fees     452,971       71,550       916       1       525,438  
Other     (4,458 )     (4,387 )     (5,712 )     16,831       2,274  
Total other income     448,526       67,208       4,278       33,823       553,835  
                              —          
Loss from continuing operations before income taxes     (1,493,224 )     (1,332,352 )     2,239,115       (1,800,445 )     (2,386,906 )
                              —          
Income tax expense (benefit)     (281,000 )     5,524,422       —       173,224       5,416,646  
                              —          
Net income from continuing operations     (1,212,224 )     (6,856,774 )     2,239,115       (1,973,669 )     (7,803,552 )
Income from discontinued operations net of tax     —       —       —       191,117       191,117  
Net loss   $ (1,212,224 )   $ (6,856,774 )   $ 2,239,115     $ (1,782,552 )   $ (7,612,435 )
                                         
Net income (loss) per share:                                        
Continuing operations:                                        
Basic   $ (0.14 )   $ (0.76 )   $ 0.24     $ (0.22 )   $ (0.87 )
Diluted   $ (0.14 )   $ (0.76 )   $ 0.23     $ (0.22 )   $ (0.87 )
                                         
Discontinued operations                                        
Basic   $ —     $ —     $ —     $ 0.02     $ 0.02  
Diluted   $ —     $ —     $ —     $ 0.02     $ 0.02
                                         
Combined                                        
Basic   $ (0.14 )   $ (0.76 )   $ 0.24     $ (0.20 )   $ (0.85 )
Diluted   $ (0.14 )   $ (0.76 )   $ 0.23     $ (0.20 )   $ (0.85 )
                                         
Weighted average shares - Basic     8,958,405       8,977,984       9,028,506       9,037,046       9,009,189  
Weighted average shares - Diluted     8,958,405       8,977,984       9,549,144       9,037,046       9,009,189  

 

    Fiscal 2017  
    Q1     Q2     Q3     Q4     Year  
Revenue   $ 6,171,625     $ 6,030,380     $ 7,177,763     $ 7,890,195     $ 27,269,963  
Cost of goods sold     1,912,007       1,818,672       2,112,099       2,374,661       8,217,439  
Gross profit     4,259,618       4,211,708       5,065,664       5,515,534       19,052,524  
                                         
Operating expenses:                                        
Selling expenses     3,325,687       3,271,134       3,587,859       4,036,227       14,220,907  
General and administrative expenses     1,931,821       2,087,419       2,484,962       3,091,004       9,595,206  
Research and development expenses     492,084       440,364       465,863       439,186       1,837,497  
Total operating expenses     5,749,592       5,798,917       6,538,684       7,566,417       25,653,610  
Loss from operations     (1,489,974 )     (1,587,209 )     (1,473,020 )     (2,050,883 )     (6,601,086 )
                                         
Other income/(expense):                                        
Interest income     19       19       18       19       75  
Royalty income and license fees     944,068       949,048       953,235       925,259       3,771,610  
Other     (1,996 )     (6,640 )     (6,940 )     (20,635 )     (36,211 )
Total other income     942,091       942,427       946,313       904,643       3,735,474  
                                         
(Loss) from continuing operations before income taxes     (547,883 )     (644,782 )     (526,707 )     (1,146,240 )     (2,865,612 )
                                         
Income tax (benefit)     (26,000 )     (30,000 )     (219,000 )     (747,808 )     (1,022,808 )
                                         
Net (loss) from continuing operations   $ (521,883 )   $ (614,782 )   $ (307,707 )   $ (398,432 )   $ (1,842,804 )
                                         
Net income from discontinued operations:                                        
Net income (loss) from discontinued operations, net of tax     —       —       161,861       (236 )     161,625  
Net income from discontinued operations     —       —       161,861       (236 )     161,625  
                                         
Net (loss)   $ (521,883 )   $ (614,782 )   $ (145,846 )   $ (398,668 )   $ (1,681,179 )
                                         
Net (loss) per share from continuing operations - Basic   $ (0.07 )   $ (0.07 )   $ (0.04 )   $ (0.05 )   $ (0.22 )
                                         
Net income per share from discontinued operations - Basic     —       —       0.02       —       0.02  
                                         
Net (loss) per share - Basic   $ (0.07 )   $ (0.07 )   $ (0.02 )   $ (0.05 )   $ (0.20 )
                                         
Net (loss) per share from continuing operations - Diluted   $ (0.07 )   $ (0.07 )   $ (0.04 )   $ (0.05 )   $ (0.22 )
                                         
Net income per share from discontinued operations - Diluted     —       —       0.02       —       0.02  
                                         
Net (loss) per share - Diluted   $ (0.07 )   $ (0.07 )   $ (0.02 )   $ (0.05 )   $ (0.20 )
                                         
Weighted average shares - Basic     7,809,385       8,374,900       8,613,354       8,806,570       8,398,778  
                                         
Weighted average shares - Diluted     7,809,385       8,374,900       8,613,354       8,806,570       8,398,778