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Equity Instruments (Details 1) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Jun. 30, 2017
Jun. 30, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total share-based compensation expense $ 113,000 $ 463,000 $ 380,000 $ 1,582,000 $ 2,502,000 $ 903,000
Unrecognized expense at June 30, 2017         $ 775,000  
Weighted average remaining years to vest (in years)     1 year 4 months 13 days   1 year 9 months 22 days  
Research and Development Expense [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total share-based compensation expense         89,000
Selling, general and administrative [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total share-based compensation expense         $ 2,502,000 $ 814,000
Stock options [Member] | Selling, general and administrative [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total share-based compensation expense 81,000 381,000 $ 276,000 1,425,000    
Restricted Stock [Member] | Selling, general and administrative [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Total share-based compensation expense $ 32,000 $ 82,000 $ 104,000 $ 157,000