Annual report pursuant to Section 13 and 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Accounts Receivable, Concentration of Revenue, Revenue Recognition (Details)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Accounts Receivable, Concentration of Revenue, Revenue Recognition (Details)
 12 Months Ended
Dec. 31, 2016
USD ($)
agreement
item
Dec. 31, 2015
USD ($)
agreement
Cash    
Number of financial institution for maintaining balances of cash and cash equivalents | item 1  
Accounts Receivable    
Allowance for bad debts $ 387,976 $ 375,750
Net accounts receivable 95,069 136,842
Concentration of Revenue and Geographic Area    
Revenues 36,629,276 18,977,794
Prepaid Expenses    
Prepaid Expense, Current 428,049 338,598
Bonds Posted With Courts    
Estimated Litigation Liability $ 0 $ 1,748,311
Patent Enforcement    
Concentration of Revenue and Geographic Area    
Number of largest licenses | agreement 5 5
Revenues from licenses (as a percent) 97.00% 62.00%
Geographic concentration risk | Germany    
Concentration of Revenue and Geographic Area    
Revenues $ 108,000  
Revenue | Patent Enforcement    
Concentration of Revenue and Geographic Area    
Revenues from licenses (as a percent) 100.00% 100.00%
Maximum    
Cash    
Insured by FDIC $ 250,000 $ 250,000