XML 31 R42.htm IDEA: XBRL DOCUMENT v2.4.1.9
Summary of Significant Accounting Policies (Summary of Temporary Differences and Carry Forwards Which Give Rise to Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Deferred tax liabilities      
Property and equipment $ (5,784)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment $ (4,905)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment $ (4,852)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Other (1,427)us-gaap_DeferredTaxLiabilitiesOther (873)us-gaap_DeferredTaxLiabilitiesOther (551)us-gaap_DeferredTaxLiabilitiesOther
Gross deferred tax liabilities (7,211)us-gaap_DeferredIncomeTaxLiabilities (5,778)us-gaap_DeferredIncomeTaxLiabilities (5,403)us-gaap_DeferredIncomeTaxLiabilities
Deferred tax assets      
Net operating loss carryforwards 9,137us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 5,861us-gaap_DeferredTaxAssetsTaxCreditCarryforwards 6,694us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Deferred revenue and setup charges 868us-gaap_DeferredTaxAssetsDeferredIncome 583us-gaap_DeferredTaxAssetsDeferredIncome 467us-gaap_DeferredTaxAssetsDeferredIncome
Derivative liability         
Other 601us-gaap_DeferredTaxAssetsOther 699us-gaap_DeferredTaxAssetsOther 113us-gaap_DeferredTaxAssetsOther
Gross deferred tax assets 10,606us-gaap_DeferredTaxAssetsGross 7,143us-gaap_DeferredTaxAssetsGross 7,274us-gaap_DeferredTaxAssetsGross
Net deferred tax assets 3,395us-gaap_DeferredTaxAssetsNet 1,365us-gaap_DeferredTaxAssetsNet 1,871us-gaap_DeferredTaxAssetsNet
Valuation allowance (3,395)us-gaap_DeferredTaxAssetsValuationAllowance (1,365)us-gaap_DeferredTaxAssetsValuationAllowance (1,871)us-gaap_DeferredTaxAssetsValuationAllowance
Net deferred