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Statement Of Cash Flow Information
 9 Months Ended
Sep. 30, 2013
Supplemental Cash Flow Elements [Abstract]  
Statement Of Cash Flow Information
STATEMENT OF CASH FLOW INFORMATION
Cash and cash equivalents at September 30, 2013 and December 31, 2012 include $651,000 of restricted cash related to collateral on seismic operations bonds. The balances at September 30, 2013 and December 31, 2012 also include $125,000 (Canadian) of restricted cash posted as security against Company issued credit cards for Olympic.
The Company had non-cash additions to its seismic data library comprised of the following for the periods indicated (in thousands): 
 
Nine Months Ended
September 30,
 
2013
 
2012
Non-monetary exchanges related to resale licensing revenue
$
1,511

 
$
1,293

Non-monetary exchanges from underwriting of new data acquisition
—

 
4,122

Completion of data in progress from prior non-monetary exchanges
2,392

 
142

Less: Non-monetary exchanges for data in progress
—

 
(2,442
)
Total non-cash additions to seismic data library
$
3,903

 
$
3,115



Non-cash revenue consisted of the following for the periods indicated (in thousands):
 
Nine Months Ended
September 30,
 
2013
 
2012
Acquisition revenue on underwriting from non-monetary exchange contracts
$
87

 
$
3,273

Licensing revenue from specific data licenses and selections on non-monetary exchange contracts
1,623

 
2,882

Solutions revenue recognized from non-monetary exchange contracts
—

 
20

Total non-cash revenue
$
1,710

 
$
6,175