XML 22 R55.htm IDEA: XBRL DOCUMENT v2.4.1.9
EQUITY TRANSACTIONS Preferred Stock (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Conversion of Stock [Line Items]    
Convertible Preferred Stock, Shares Authorized 20,000dhx_ConvertiblePreferredSharesAuthorized 20,000dhx_ConvertiblePreferredSharesAuthorized
Common stock, par value $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare