Fair Value Of Financial Instruments (Fair Value, Assets Measured On Recurring Basis) (Details) $ in Thousands | Sep. 30, 2016USD ($) |
Cash and Cash Equivalents [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | $ 8,841 |
Cash and Cash Equivalents [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | 8,841 |
Cash and Cash Equivalents [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Cash and Cash Equivalents [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Cash [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | 4,934 |
Cash [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | 4,934 |
Cash [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Cash [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Money Market Funds [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | 3,907 |
Money Market Funds [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | 3,907 |
Money Market Funds [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Money Market Funds [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Cash and cash equivalents | |
Fixed Income Securities [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 12,975 |
Fixed Income Securities [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
Fixed Income Securities [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 12,975 |
Fixed Income Securities [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
Corporate Bonds - Financial [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 3,205 |
Corporate Bonds - Financial [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
Corporate Bonds - Financial [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 3,205 |
Corporate Bonds - Financial [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
Corporate Bonds - Industrial [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 3,779 |
Corporate Bonds - Industrial [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
Corporate Bonds - Industrial [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 3,779 |
Corporate Bonds - Industrial [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
U.S. Treasury Securities [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 5,991 |
U.S. Treasury Securities [Member] | Level 1 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |
U.S. Treasury Securities [Member] | Level 2 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | 5,991 |
U.S. Treasury Securities [Member] | Level 3 [Member] | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |
Fixed income securities | |