Equity (Details Narrative) $ / shares in Units, $ in Thousands | May 14, 2018USD ($)Integer$ / sharesshares | May 31, 2018USD ($)shares | Jan. 31, 2017USD ($)$ / sharesshares | Jul. 31, 2016USD ($)$ / sharesshares | Jun. 30, 2018USD ($)$ / sharesshares | Jun. 30, 2017USD ($) | Mar. 31, 2018shares | Dec. 31, 2017$ / sharesshares |
Warrants to purchase of common stock shares | shares | | 145,834 | | | | | 832,000 | |
Gross proceeds of warrants | | $ 300,000 | | | $ 7,577 | $ 679 | | |
Proceeds from public offering | $ 15,000 | | | | | | | |
Preferred stock stated value | $ / shares | | | | | $ 0.01 | | | $ 0.01 |
Common stock state value | $ / shares | | | | | 0.01 | | | $ 0.01 |
Conversion price per share | $ / shares | $ 1.45 | | | | | | | |
Share price | $ / shares | | | | | $ 3 | | | |
Warrants exercise price | $ / shares | | | $ 6.60 | | | | | |
Proceeds from issuance of units | $ 15,000 | | | | $ 6,754 | | | |
Preferred stock issuance costs | 6,800 | | | | | | | |
Allocated to preferred stock | $ 600 | | | | | | | |
Warrants issuance cost | | | $ 100,000 | | | | | |
Allocated to warrants | | | 800,000 | | | | | |
Proceeds from warrant exercised | | | | | 1,633 | | | |
Proceeds from issuance of common stock gross | | | 3,900,000 | | | | | |
Proceeds from issuance of common stock net | | | 3,100,000 | | | 3,128 | | |
Stock issuance cost | | | $ 600,000 | | | | | |
Warrants expire term | | | 5 years | | | | | |
Common stock, issued | shares | | | | | 7,509,248 | | | 3,028,065 |
Preferred stock, issued | shares | | | | | 10,928 | | | 10,928 |
Investors [Member] | | | | | | | | |
Warrants to purchase of common stock shares | shares | | | | | 832,000 | | | |
Warrants exercise price | $ / shares | | | | | $ 12 | | | |
Investors [Member] | Amendment Agreement [Member] | | | | | | | | |
Warrants to purchase of common stock shares | shares | | | | | 668,335 | | | |
Warrants exercise price | $ / shares | | | | | $ 2.125 | | | |
Proceeds from warrant exercised | | | | | $ 1,400,000 | | | |
July 12, 2018 [Member] | | | | | | | | |
Conversion price per share | $ / shares | | | | | $ 0.6543 | | | |
Public Offering [Member] | | | | | | | | |
Stock issued price per shares | $ / shares | $ 1,000 | | | | | | | |
Debt instrument trading days | Integer | 40 | | | | | | | |
Conversion price per share | $ / shares | $ 1.4512 | | | | | | | |
Debt instrument trading percentage | 87.50% | | | | | | | |
Share price | $ / shares | $ 0.48 | | | | | | | |
Units price per unit | $ / shares | $ 1,000 | | | | | | | |
Secondary Offering [Member] | | | | | | | | |
Gross proceeds of warrants | | | | $ 11,400,000 | | | | |
Convertible Preferred Stock and Warrants [Member] | | | | | | | | |
Proceeds from public offering | $ 15,000 | | | | | | | |
Warrants [Member] | | | | | | | | |
Warrants to purchase of common stock shares | shares | 758 | | | | | | | |
Warrant term | 5 years | | | | | | | |
Common stock state value | $ / shares | $ 1,100 | | | | | | | |
Share price | $ / shares | | | | | 0.01 | | | |
Warrants exercise price | $ / shares | $ 1.60 | | | | | | | |
Warrants issuance cost | $ 6,900 | | | | | | | |
Allocated to warrants | 700 | | | | | | | |
Warrants for derivative liability | $ 700 | | | | | | | |
Warrants [Member] | Secondary Offering [Member] | | | | | | | | |
Warrants to purchase of common stock shares | shares | | | 363,750 | 1,054,167 | | | | |
Warrants exercise price | $ / shares | | | | $ 12 | | | | |
New Warrants [Member] | | | | | | | | |
Warrants exercise price | $ / shares | | | | | $ 2 | | | |
Ownership percentage | | | | | 100.00% | | | |
Common Stock [Member] | | | | | | | | |
Stock issued price per shares | $ / shares | | | | | $ 6.48 | | | |
Stock issuance cost | | | | | $ 682 | $ 682 | | |
Units price per unit | $ / shares | | | | | $ 6.48 | | | |
Common Stock [Member] | Secondary Offering [Member] | | | | | | | | |
Number of shares of common stock sold | shares | | | 741,667 | | | | | |
Common stock, issued | shares | | | | 438,167 | | | | |
Preferred Stock [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | | | | | 616,000 | | | |
Stock issuance cost | | | | | $ 668 | | | |
Preferred stock, issued | shares | | | | | 7,392 | | | |
Preferred Stock [Member] | Secondary Offering [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | | | | 616,000 | | | | |
Preferred stock, issued | shares | | | | 7,392 | | | | |
Series B Convertible Preferred Stock [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | | 4,072 | | | 4,072 | | | |
Preferred stock stated value | $ / shares | $ 1,100 | | | | | | | |
Common Stock [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | 11,369,900 | 3,086,570 | | | 3,086,570 | | | |
Preferred Stock [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | 15,000 | | | | | | | |
Class A Units [Member] | | | | | | | | |
Allocated to warrants | | | | | $ 2,400,000 | | | |
Proceeds from issuance of common stock gross | | | | | 4,900,000 | | | |
Proceeds from issuance of common stock net | | | | | 2,500,000 | | | |
Stock issuance cost | | | | | 300,000 | | | |
Class A Units [Member] | Secondary Offering [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | | | | 83 | | | | |
Warrants to purchase of common stock shares | shares | | | | 83 | | | | |
Stock issued price per shares | $ / shares | | | | $ 1 | | | | |
Number of shares of common stock sold | shares | | | | 5,258,000 | | | | |
Units price per unit | $ / shares | | | | $ 1 | | | | |
Class A Units [Member] | Secondary Offering [Member] | Underwriter [Member] | | | | | | | | |
Number of shares of common stock sold | shares | | | | 1,650,000 | | | | |
Class B Units [Member] | | | | | | | | |
Warrants issuance cost | | | | | 500,000 | | | |
Allocated to warrants | | | | | 3,400,000 | | | |
Warrants for derivative liability | | | | | 5,800,000 | | | |
Proceeds from issuance of common stock gross | | | | | 7,000,000 | | | |
Proceeds from issuance of common stock net | | | | | 3,600,000 | | | |
Stock issuance cost | | | | | $ 400,000 | | | |
Class B Units [Member] | Secondary Offering [Member] | Underwriter [Member] | | | | | | | | |
Stock issued price per shares | $ / shares | | | | $ 1,000 | | | | |
Number of shares of common stock sold | shares | | | | 7,392 | | | | |
Units price per unit | $ / shares | | | | $ 1,000 | | | | |
Convertible Preferred Stock [Member] | Secondary Offering [Member] | | | | | | | | |
Convertible preferred stock shares conversion | shares | | | | | 616,000 | | | |
Preferred stock, issued | shares | | | | | 7,392 | | | |
Number of common stock received | | | | | $ 400,000 | | | |
Number of common stock exercise, shares | shares | | | | | 37,208 | | | |