Summary of significant accounting policies (Details 2) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2015
USD ($)
|
Jun. 30, 2014
USD ($)
|
Jun. 30, 2015
USD ($)
item
|
Jun. 30, 2014
USD ($)
|
Dec. 31, 2014
USD ($)
|
|
| Primary revenue source | |||||
| Number of reportable segments | item | 1 | ||||
| Revenue | $ 34,277 | $ 28,396 | $ 63,669 | $ 54,848 | |
| Marketable securities | |||||
| Short-term marketable securities | 0 | 0 | $ 1,614 | ||
| Unrealized gains or losses in accumulated other comprehensive loss | 0 | 0 | $ 0 | ||
| Retail | |||||
| Primary revenue source | |||||
| Revenue | 8,145 | 10,367 | 16,854 | 20,721 | |
| DAS | |||||
| Primary revenue source | |||||
| Revenue | 12,125 | 9,409 | 21,721 | 17,227 | |
| Wholesale - Wi-Fi | |||||
| Primary revenue source | |||||
| Revenue | 5,472 | 3,463 | 9,642 | 6,768 | |
| Military | |||||
| Primary revenue source | |||||
| Revenue | 4,232 | 624 | 7,746 | 1,100 | |
| Advertising and other | |||||
| Primary revenue source | |||||
| Revenue | $ 4,303 | $ 4,533 | $ 7,706 | $ 9,032 | |