XML 50 R37.htm IDEA: XBRL DOCUMENT v3.6.0.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals 4)
$ in Millions
12 Months Ended
Dec. 31, 2016
USD ($)
Issuer
Dec. 31, 2015
USD ($)
Issuer
Concentration Risk [Line Items]    
Cash and cash equivalents, in excess of federally insured deposit limits $ 51.7 $ 51.0
Investment Portfolio | Credit Concentration Risk | Corporate debt securities    
Concentration Risk [Line Items]    
Number of issuer | Issuer 2 2
Investment Portfolio | Credit Concentration Risk | Corporate debt securities | Issuer One    
Concentration Risk [Line Items]    
Concentration of risk, amount $ 0.5 $ 0.5
Investment Portfolio | Credit Concentration Risk | Corporate debt securities | Issuer Two    
Concentration Risk [Line Items]    
Concentration of risk, amount $ 0.5 $ 0.4