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Network
2414404 - Disclosure - Income taxes (Schedule of Deferred Tax Assets) (Details)
(http://www.americandg.com/role/IncomeTaxesScheduleOfDeferredTaxAssetsDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001378706 (http://www.sec.gov/CIK)
Income Tax Disclosure [Abstract]Period [Axis]
2016-12-31
2015-12-31
Income Tax Disclosure [Abstract]
 
 
Net operating loss carryforwards
3,177,000  
11,875,000  
Accrued expenses and other
131,000  
57,000  
Stock compensation
806,000  
1,312,000  
Depreciation
685,000  
357,000  
Deferred tax assets and liabilties, net, before valuation allowance
4,799,000  
 
13,601,000  
 
Valuation allowance
(4,799,000) 
(13,601,000) 
Net deferred tax asset
0  
 
0