Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Narrative (Details)

v3.7.0.1
Fair Value Measurements - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Sep. 28, 2016
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                        
Stock price ($ per share) $ 0.94               $ 0.94     $ 0.99
Change in fair value of convertible note embedded derivative liability                 $ 475,000 $ 0 $ 0  
Warrant adjustment $ 650,000 $ (937,000) $ 140,000 $ 0 $ 0 $ 0 $ 0 $ 0 (147,000) $ 0    
Convertible notes                        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]                        
Original discount                       $ 4,916,000
Debt face amount $ 16,000               $ 16,000     $ 16,000,000
Interest rate                       8.75%