XML 40 R36.htm IDEA: XBRL DOCUMENT v2.4.1.9
Summary of Significant Accounting Policies (Details) (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
Segment
Dec. 31, 2013
Dec. 31, 2012
Cash Equivalents and Concentrations of Credit Risk [Abstract]                      
Maximum number of months of investments with original maturities from date of acquisition to be cash equivalents                 3 months    
Calculation of net loss and the number of shares used to compute basic and diluted earnings per share [Abstract]                      
Net loss - basic $ (2,945)us-gaap_NetIncomeLoss $ (4,558)us-gaap_NetIncomeLoss $ (4,600)us-gaap_NetIncomeLoss $ (5,278)us-gaap_NetIncomeLoss $ (4,792)us-gaap_NetIncomeLoss $ (7,206)us-gaap_NetIncomeLoss $ (5,482)us-gaap_NetIncomeLoss $ (12,845)us-gaap_NetIncomeLoss $ (17,381)us-gaap_NetIncomeLoss $ (30,324)us-gaap_NetIncomeLoss $ (51,868)us-gaap_NetIncomeLoss
Adjust for gain on warrant derivative liability                 0dcth_DilutiveSecuritiesEffectOnBasicEarningsPerShareAdjustForGainOnWarrantDerivativeLiability (1,835)dcth_DilutiveSecuritiesEffectOnBasicEarningsPerShareAdjustForGainOnWarrantDerivativeLiability 0dcth_DilutiveSecuritiesEffectOnBasicEarningsPerShareAdjustForGainOnWarrantDerivativeLiability
Net loss - diluted                 $ (17,381)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted $ (32,159)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted $ (51,868)us-gaap_NetIncomeLossAvailableToCommonStockholdersDiluted
Net loss per share - basic (in dollars per share) $ (0.31)us-gaap_EarningsPerShareBasic $ (0.48)us-gaap_EarningsPerShareBasic $ (0.49)us-gaap_EarningsPerShareBasic $ (0.57)us-gaap_EarningsPerShareBasic         $ (1.84)us-gaap_EarningsPerShareBasic [1] $ (4.81)us-gaap_EarningsPerShareBasic [1] $ (13.54)us-gaap_EarningsPerShareBasic [1]
Weighted average shares outstanding - basic (in shares)                 9,452,050us-gaap_WeightedAverageNumberOfSharesOutstandingBasic [1] 6,300,614us-gaap_WeightedAverageNumberOfSharesOutstandingBasic [1] 3,829,721us-gaap_WeightedAverageNumberOfSharesOutstandingBasic [1]
Potentially dilutive warrant exercises (in shares)                 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants 268,397us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants 0us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants
Weighted average shares outstanding - diluted (in dollars per share)                 9,452,050us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding [1] 6,569,011us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding [1] 3,829,721us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding [1]
Net loss per share - diluted (in dollars per share) $ (0.31)us-gaap_EarningsPerShareDiluted $ (0.48)us-gaap_EarningsPerShareDiluted $ (0.52)us-gaap_EarningsPerShareDiluted $ (0.57)us-gaap_EarningsPerShareDiluted         $ (1.84)us-gaap_EarningsPerShareDiluted [1] $ (5.10)us-gaap_EarningsPerShareDiluted [1] $ (13.54)us-gaap_EarningsPerShareDiluted [1]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Shares excluded from the computation of diluted EPS (in shares)                 1,161,672us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 862,005us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 683,173us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Segment Information [Abstract]                      
Number of business segments                 1us-gaap_NumberOfOperatingSegments    
Stock Options [Member]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Shares excluded from the computation of diluted EPS (in shares)                 281,735us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember		 252,158us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember		 299,242us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_EmployeeStockOptionMember
Unvested Restricted Shares [Member]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Shares excluded from the computation of diluted EPS (in shares)                 29,799us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember		 20,347us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember		 31,267us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_RestrictedStockMember
Warrants [Member]                      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]                      
Shares excluded from the computation of diluted EPS (in shares)                 850,138us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember		 589,500us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember		 352,664us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember
Minimum [Member]                      
Property, Plant and Equipment [Line Items]                      
Estimated useful lives                 3 years    
Maximum [Member]                      
Property, Plant and Equipment [Line Items]                      
Estimated useful lives                 7 years    
[1] Reflects a one-for-sixteen (1:16) reverse stock split effected on April 8, 2014.