Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Fixed interest rate related to the interest rate derivative.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets.

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Debt And Interest Rate Swap Contracts (Narrative) (Details)	1 Months Ended	9 Months Ended	12 Months Ended
	Jul. 31, 2013 USD ($) contract	Sep. 30, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 04, 2015 USD ($)	Nov. 03, 2015 USD ($)
Debt Instrument [Line Items]
Term loan debt		$ 15,033,000	$ 17,832,000
Sum used to compute minimum required consolidated net worth		$ 142,100,000
Percentage of fiscal year net income to be maintained		50.00%
Percentage of equity raise through sale of equity interests to be maintained		90.00%
Number of interest rate swap contracts \| contract	2
Borrowing amount		$ 20,000,000
Notional amount of interest rate swap		$ 13,600,000
Swap option, termination date		Jun. 30, 2020
Subsequent Event [Member]
Debt Instrument [Line Items]
Borrowing amount				$ 36,000,000
Federal Funds Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		0.50%
Citibank Prime Commercial Lending Rate And 30 Day LIBOR [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
Maximum [Member]
Debt Instrument [Line Items]
Maximum funded indebtness ratio percentage		25.00%
Maximum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		3.25%
Maximum [Member] \| Citibank Alternate Bank Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		1.50%
Minimum [Member]
Debt Instrument [Line Items]
Cash on hand		$ 5,000,000
Coverage ratio		1.25
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%
Minimum [Member] \| Citibank Alternate Bank Rate [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		0.25%
$25 Million Term Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 25,000,000	$ 25,000,000	$ 25,000,000
Term loan, maturity date		Jun. 30, 2020
Credit facility, length of term		7 years	7 years
Percentage of debt converted to fixed-rate debt	80.00%
Variable rate portion of debt outstanding		$ 5,200,000
Notional amount of interest rate swap		$ 13,600,000
Fixed interest rate	3.73%	3.73%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Outstanding balance		$ 0	$ 0	0
Letter of Credit [Member]
Debt Instrument [Line Items]
Outstanding balance		0		$ 0
Citibank I [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 20,000,000	20,000,000
Citibank II [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalization ratio		0.30%
Citibank II [Member] \| $2.6 Million Term Loan [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 2,600,000	$ 2,600,000
Term loan, maturity date		Nov. 12, 2016
Citibank III [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalization ratio		0.25%
Citibank III [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 40,000,000
Term loan, maturity date		Jun. 30, 2020
Additional loan amount					$ 20,000,000
Citibank I And II [Member]
Debt Instrument [Line Items]
Outstanding balance		$ 18,800,000