Senior Convertible Notes and Warrants, and Subordinated Notes and Warrants (Details) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Derivative liability		$ 2,153,920
Senior Convertible Note And Warrant Liability [Member]
Derivative liability		2,118,156
Level 1 [Member]
Derivative liability
Level 1 [Member] \| Senior Convertible Note And Warrant Liability [Member]
Derivative liability
Level 3 [Member]
Derivative liability	2,598,076	2,153,920
Level 3 [Member] \| Senior Convertible Note And Warrant Liability [Member]
Derivative liability		2,118,156
Level 2 [Member]
Derivative liability
Level 2 [Member] \| Senior Convertible Note And Warrant Liability [Member]
Derivative liability
Series B Warrant Liability [Member]
Derivative liability		35,764
Series B Warrant Liability [Member] \| Level 1 [Member]
Derivative liability
Series B Warrant Liability [Member] \| Level 3 [Member]
Derivative liability		35,764
Series B Warrant Liability [Member] \| Level 2 [Member]
Derivative liability
Series B Warrants [Member]
Derivative liability	$ 0	$ 34,521	$ 2,156,250

Axion Power International, Inc. 10-K