Property and Equipment  | 
3 Months Ended | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2016  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 4. Property and Equipment | 
 Property and equipment, net consisted of the following: 
 
 
 Leasehold improvements are amortized over the term of the lease. 
 Depreciation expense for the three-month periods ended December 31, 2016 and 2015 was approximately $79,000 and $66,000, respectively.  | 
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