Stock Options and Warrants - Stock Options - Additional Information (Detail) - USD ($)
$ in Thousands |
2 Months Ended |
3 Months Ended |
6 Months Ended |
12 Months Ended |
|
|
Dec. 31, 2009 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Dec. 31, 2010 |
Dec. 31, 2006 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Unrecognized compensation expense related to stock options |
|
$ 618
|
|
$ 618
|
|
$ 977
|
$ 1,864
|
|
|
| Unrecognized compensation cost related to unvested shares expected to be recognized, weighted-average period |
|
|
|
2 years 4 months 6 days
|
|
2 years 2 months 12 days
|
1 year 7 months 6 days
|
|
|
| Stock-based compensation expense |
|
$ 92
|
$ 374
|
$ 342
|
$ 721
|
$ 1,418
|
$ 1,693
|
|
|
| Maximum [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Expiry of options |
|
|
|
10 years
|
|
10 years
|
|
|
|
| 2006 Plan [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Number of options that may be granted |
|
|
|
|
|
|
|
|
100,000
|
| Expiry of options |
|
|
|
10 years
|
|
10 years
|
|
|
|
| 2006 Plan [Member] | Previously Reported [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Number of options that may be granted |
|
|
|
|
|
|
|
|
15,000,000
|
| 2010 Plan [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Number of options that may be granted |
|
|
|
|
|
|
|
120,000
|
|
| Expiry of options |
|
|
|
10 years
|
|
10 years
|
|
|
|
| 2010 Plan [Member] | Previously Reported [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Number of options that may be granted |
|
|
|
|
|
|
|
18,000,000
|
|
| Outside Plan [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Expiry of options |
|
|
|
10 years
|
|
10 years
|
|
|
|
| Options granted to employees, directors and consultants |
68,384
|
|
|
|
|
|
|
|
|
| Award vesting terms |
|
|
|
50 months
|
|
50 months
|
|
|
|
| Outside Plan [Member] | Previously Reported [Member] |
|
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
|
| Options granted to employees, directors and consultants |
10,257,593
|
|
|
|
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|
|
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