Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
| Allowance for doubtful accounts receivable |
$ 18
|
$ 19
|
$ 19
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
|
| Preferred stock, shares authorized |
20,000,000
|
20,000,000
|
|
| Common stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Common stock, shares authorized |
720,000,000
|
720,000,000
|
300,000,000
|
| Common stock, shares issued |
1,828,162
|
1,596,195
|
151,175,053
|
| Common stock, shares outstanding |
1,828,162
|
1,596,195
|
151,175,053
|
| Series B Preferred Stock [Member] |
|
|
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Preferred stock, shares authorized |
5,000,000
|
5,000,000
|
5,000,000
|
| Preferred stock, shares issued |
300,000
|
300,000
|
300,000
|
| Preferred stock, shares outstanding |
300,000
|
300,000
|
300,000
|
| Liquidation preference |
$ 430
|
$ 421
|
$ 403
|
| Series D Preferred Stock [Member] |
|
|
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Preferred stock, shares authorized |
50
|
50
|
50
|
| Preferred stock, shares issued |
43
|
43
|
43
|
| Preferred stock, shares outstanding |
43
|
43
|
43
|
| Liquidation preference |
$ 4,320
|
$ 4,320
|
$ 4,320
|
| Series G Preferred Stock [Member] |
|
|
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Preferred stock, shares authorized |
5,000,000
|
5,000,000
|
0
|
| Preferred stock, shares issued |
5,000,000
|
5,000,000
|
0
|
| Preferred stock, shares outstanding |
5,000,000
|
5,000,000
|
0
|
| Liquidation preference |
$ 5,000
|
$ 5,000
|
$ 0
|
| Series H-1 Preferred Stock [Member] |
|
|
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Preferred stock, shares authorized |
2,000
|
2,000
|
0
|
| Preferred stock, shares issued |
377
|
1,482
|
0
|
| Preferred stock, shares outstanding |
377
|
1,482
|
0
|
| Series H-2 Preferred Stock [Member] |
|
|
|
| Preferred stock, par value |
$ 0.001
|
$ 0.001
|
$ 0.001
|
| Preferred stock, shares authorized |
500
|
500
|
0
|
| Preferred stock, shares issued |
500
|
500
|
0
|
| Preferred stock, shares outstanding |
500
|
500
|
0
|
| Convertible Redeemable Series G Preferred stock [Member] |
|
|
|
| Convertible Redeemable Preferred stock, par value |
|
$ 0.001
|
$ 0.001
|
| Convertible Redeemable Preferred stock, shares authorized |
|
0
|
5,000,000
|
| Convertible Redeemable Preferred stock, shares issued |
|
0
|
5,000,000
|
| Convertible Redeemable Preferred stock, shares outstanding |
|
0
|
5,000,000
|
| Convertible Redeemable Preferred stock, liquidation preference |
|
$ 0
|
$ 5,000
|
| Previously Reported [Member] |
|
|
|
| Common stock, shares issued |
|
239,429,170
|
|
| Common stock, shares outstanding |
|
239,429,170
|
|