Goodwill - Additional Information (Detail) - USD ($) |
1 Months Ended | 3 Months Ended | 6 Months Ended | 8 Months Ended | 12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
May 31, 2016 |
May 31, 2016 |
Mar. 31, 2015 |
Jun. 30, 2015 |
Sep. 01, 2015 |
Dec. 31, 2016 |
Jun. 30, 2016 |
May 12, 2016 |
Mar. 31, 2016 |
Feb. 25, 2016 |
Jan. 19, 2016 |
Dec. 31, 2015 |
Jul. 01, 2015 |
Mar. 15, 2015 |
Dec. 31, 2014 |
|
| Goodwill and Intangible Assets Disclosure [Abstract] | |||||||||||||||
| Percentage of fair value in excess of carrying amount (as percent) | 6.00% | 7.00% | 6.00% | 3.00% | |||||||||||
| Impairment of goodwill | $ 0 | $ 0 | $ 0 | $ 20,899,000 | |||||||||||
| Market capitalization | $ 55,800,000 | $ 55,800,000 | $ 19,451,697 | $ 61,800,000 | $ 64,400,000 | ||||||||||
| Carrying value of company | $ 66,000,000 | $ 66,000,000 | 44,468,000 | $ 67,500,000 | 70,323,000 | $ 70,185,000 | |||||||||
| Market price of stock (in dollars per share) | $ 3.10 | $ 3.99 | $ 3.11 | ||||||||||||
| Average share price (in dollars per share) | $ 3.21 | ||||||||||||||
| Discount rate (as percent) | 19.00% | ||||||||||||||
| Long term cash flow growth rate (as percent) | 5.00% | ||||||||||||||
| Control premium (as percent) | 20.00% | ||||||||||||||
| Goodwill | $ 0 | $ 20,899,000 |