CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Allowance for doubtful accounts	$ 45,664	$ 48,201
Patents, amortization	$ 363,533	$ 430,071
Preferred stock, par value (in dollars per share)	$ 0.0001
Preferred stock, shares authorized (in shares)	25,000,000
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	20,000,000,000	20,000,000,000
Common stock, shares issued (in shares)	63,537,885	9,606,677
Common stock, shares outstanding (in shares)	63,537,885	9,606,677
Commitments and Contingencies
Series A Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized (in shares)	750,000	750,000
Preferred stock, shares outstanding (in shares)	60,756	60,756
Preferred stock, liquidation preference	$ 822,620	$ 761,864
Series K Preferred Stock [Member]
Preferred stock, shares authorized (in shares)	20,000	20,000
Preferred stock, shares issued (in shares)	0	2,810
Preferred stock, shares outstanding (in shares)	0	2,810
Secured Promissory Note, Current [Member]
Unamortized discount	$ 2,824,365	$ 3,618,571
Promissory Note [Member]
Unamortized discount	104,583	20,626
Convertible Notes [Member]
Unamortized discount	$ 394,011	$ 1,238,241

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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