| Carrying value of intangible assets | Total identifiable
intangible assets acquired and their carrying values at December 31, 2015 are:   
    |  |  | Cost |  |  | Accumulated Amortization
 |  |  | Accumulated
    Impairment |  |  | Carrying
    Value |  |  | Weighted Average
    Amortization Period (Years) |  |  
    | Amortized Identifiable
    Intangible Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Subscriber
    lists  EthoStream |  | $ | 2,900,000 |  |  | $ | (2,124,743 | ) |  | $ |  |  |  | $ | 775,257 |  |  |  | 12.0 |  |  
    | Total Amortized Identifiable
    Intangible Assets |  |  | 2,900,000 |  |  |  | (2,124,743 | ) |  |  |  |  |  |  | 775,257 |  |  |  |  |  |  
    | Goodwill  EthoStream |  |  | 8,796,430 |  |  |  |  |  |  |  | (3,000,000 | ) |  |  | 5,796,430 |  |  |  |  |  |  
    | Goodwill
     SSI |  |  | 5,874,016 |  |  |  |  |  |  |  | (5,874,016 | ) |  |  |  |  |  |  |  |  |  
    | Total
    Goodwill |  |  | 14,670,446 |  |  |  |  |  |  |  | (8,874,016 | ) |  |  | 5,796,430 |  |  |  |  |  |  
    | Total |  | $ | 17,570,446 |  |  | $ | (2,124,743 | ) |  | $ | (8,874,016 | ) |  | $ | 6,571,687 |  |  |  |  |  |    Total identifiable
intangible assets acquired and their carrying values at December 31, 2014 are:   
    |  |  | Cost |  |  | Accumulated Amortization
 |  |  | Accumulated
    Impairment |  |  | Carrying
    Value |  |  | Weighted Average
    Amortization Period (Years) |  |  
    | Amortized Identifiable
    Intangible Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Subscriber
    lists  EthoStream |  | $ | 2,900,000 |  |  | $ | (1,883,063 | ) |  | $ |  |  |  | $ | 1,016,937 |  |  |  | 12.0 |  |  
    | Total Amortized Identifiable
    Intangible Assets |  |  | 2,900,000 |  |  |  | (1,883,063 | ) |  |  |  |  |  |  | 1,016,937 |  |  |  |  |  |  
    | Goodwill  EthoStream |  |  | 8,796,430 |  |  |  |  |  |  |  | (3,000,000 | ) |  |  | 5,796,430 |  |  |  |  |  |  
    | Goodwill
     SSI |  |  | 5,874,016 |  |  |  |  |  |  |  | (5,874,016 | ) |  |  |  |  |  |  |  |  |  
    | Total
    Goodwill |  |  | 14,670,446 |  |  |  |  |  |  |  | (8,874,016 | ) |  |  | 5,796,430 |  |  |  |  |  |  
    | Total |  | $ | 17,570,446 |  |  | $ | (1,883,063 | ) |  | $ | (8,874,016 | ) |  | $ | 6,813,367 |  |  |  |  |  |    |