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Common Shares Owned, Stockholder, Percentage

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Debt Instrument, Additional Periodic Payment, Principal, Percent of Earnings Benchmark

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Debt Instrument, Additional Periodic Payment, Principal, Reduction to Calculated Payment

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- Definition

Debt Instrument, Covenant, Cash Balance Repayment Threshold

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Debt Instrument, Principal Payment, Excess Cash Flow

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Debt Instrument, Principal Payment, Percentage Of Excess Cash Flow

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- Definition

Amount of amortization expense attributable to debt issuance costs.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of the required periodic payments applied to principal.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of the required periodic payment applied to principal.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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Debt - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
Debt - Narrative (Details) - USD ($)	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Mar. 01, 2015	Feb. 27, 2015
Debt Instrument [Line Items]
Long-term debt	$ 10,642,000		$ 10,642,000		$ 10,988,000
Long-term debt, current maturities	10,642,000		10,642,000		400,000
Unamortized debt issuance expense	143,000		143,000		197,000
Amortization of financing costs			$ 54,000	$ 68,000
Comerica Term Loan
Debt Instrument [Line Items]
Debt instrument, principal payment as percentage of excess cash flow, percentage			50.00%
Promissory Note with Stockholder Representative \| Note payable
Debt Instrument [Line Items]
Long-term debt	1,782,000		$ 1,782,000		1,780,000
Stated interest rate, percentage						15.00%
SRS Note	1,785,000		1,785,000
Debt issuance costs, gross	$ 3,000		$ 3,000
Debt instrument, covenant, cash balance repayment threshold (greater than)	200.00%		200.00%
Interest payable	$ 478,000		$ 478,000
Promissory Note with Stockholder Representative \| Note payable \| Debt Instrument, Redemption, Period One
Debt Instrument [Line Items]
Debt instrument, periodic principal payment			$ 50,000
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period			3 months
Debt instrument, additional periodic payment, principal, reduction to calculated payment			$ 1,500,000
Promissory Note with Stockholder Representative \| Note payable \| Debt Instrument, Redemption, Period Two
Debt Instrument [Line Items]
Debt instrument, additional periodic payment, principal, earnings benchmark, measurement period			6 months
Debt instrument, additional periodic payment, principal, reduction to calculated payment			$ 3,000,000
Debt instrument, additional periodic payment, principal, percent of earnings benchmark, percentage			40.00%
Term Loan
Debt Instrument [Line Items]
Stated interest rate, percentage	12.00%		12.00%
Main Street Capital Corporation \| Term Loan
Debt Instrument [Line Items]
Revolving loan facility, maximum borrowing capacity							$ 11,000,000
Main Street Term Loan, net of unamortized debt discount	$ 9,000,000		$ 9,000,000
Long-term debt	8,860,000		8,860,000		8,808,000
Line of credit facility, periodic payment, principal		$ 400,000		0
Main Street Capital Corporation \| Revolving Credit Facility
Debt Instrument [Line Items]
Revolving loan facility, maximum borrowing capacity							$ 2,000,000
Long-term debt	0		0		$ 400,000
Revolving loan facility, maximum borrowing capacity, not available during default	2,000,000		2,000,000
Line of credit facility, periodic payment, principal		$ 0	400,000	$ 0
Debt instrument, principal payment, excess cash flow	$ 244,000		$ 244,000
Main Street Capital Corporation
Debt Instrument [Line Items]
Common shares owned by stockholder (in shares)	7,711,517		7,711,517
Common shares owned, stockholder, percentage	22.00%		22.00%