Annual report pursuant to Section 13 and 15(d)

Loss per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Detail)

v2.4.1.9
Loss per Share of Common Stock - Basic and Diluted Loss Per Share of Common Stock (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Calculation of basic loss per share of common stock:                      
Net loss attributable to common stockholders $ 4,944us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (931)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ 86us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (14,637)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (786)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (797)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (641)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (643)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (10,538)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (2,867)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic $ (445)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Denominator for basic weighted average shares of common stock                 17,253,503us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 13,164,244us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 10,953,325us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Basic loss per share of common stock                 $ (0.61)us-gaap_EarningsPerShareBasic $ (0.22)us-gaap_EarningsPerShareBasic $ (0.04)us-gaap_EarningsPerShareBasic
Calculation of diluted loss per share of common stock:                      
Net loss attributable to common stockholders 4,944us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (931)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic 86us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (14,637)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (786)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (797)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (641)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (643)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (10,538)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (2,867)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic (445)us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic
Add: Income impact of assumed conversion of senior common stock                 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther 0us-gaap_DilutiveSecuritiesEffectOnBasicEarningsPerShareOther
Net loss attributable to common stockholders plus assumed conversions                 $ (10,538)good_NetIncomeLossAvailableToCommonStockholdersPlusAssumedConversion $ (2,867)good_NetIncomeLossAvailableToCommonStockholdersPlusAssumedConversion $ (445)good_NetIncomeLossAvailableToCommonStockholdersPlusAssumedConversion
Denominator for basic weighted average shares of common stock                 17,253,503us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 13,164,244us-gaap_WeightedAverageNumberOfSharesOutstandingBasic 10,953,325us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Effect of convertible senior common stock                 0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities 0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities 0us-gaap_IncrementalCommonSharesAttributableToConversionOfDebtSecurities
Denominator for diluted weighted average shares of common stock                 17,253,503us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 13,164,244us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding 10,953,325us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Diluted loss per share of common stock                 $ (0.61)us-gaap_EarningsPerShareDiluted $ (0.22)us-gaap_EarningsPerShareDiluted $ (0.04)us-gaap_EarningsPerShareDiluted