Long-term Debt - Stifel Bank (Narrative) (Details) - USD ($)	1 Months Ended	3 Months Ended
Oct. 31, 2020	Mar. 31, 2021
Term Loan [Member]
Subsequent Event [Line Items]
Debt pay off	$ 46,674,000
Prepayment premium fee	305,000
Debt interest	365,000
Facility fee	2,191,000
Loss on debt extinguishment	1,119,000
Letter of Credit [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Facility amount		$ 50,000,000
Amount drawn on facility	$ 49,000,000
Aggregate outstanding principal balance		$ 49,000,000
Annual interest rate		4.75%
Percentage of revenue for debt repayment		80.00%
Percent of original principal threshold		0.75%
Redemption amount		$ 375,000
Debt default rate		5.00%
Stated interest rate		4.75%
Secured Revolving Credit Facility [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Facility amount		$ 50,000,000
Secured Revolving Credit Facility, Subfacility [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Facility amount		2,000,000
Minimum [Member] \| Letter of Credit [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Restricted Cash		$ 20,000,000
Minimum [Member] \| Letter of Credit [Member] \| Prime Rate [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Variable interest rate		0.50%
Maximum [Member] \| Letter of Credit [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Restricted Cash		$ 60,000,000
Maximum [Member] \| Letter of Credit [Member] \| Prime Rate [Member] \| Stifel Bank [Member]
Subsequent Event [Line Items]
Variable interest rate		0.75%

Debt Instrument, Covenant, Debt Default Rate

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- Definition

Debt Instrument, Covenant, Liquidity Event, Payment Amount

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Debt Instrument, Covenant, Liquidity Event, Percent Of Original Principal Threshold

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- Definition

Repayments Of Debt, Revenue Target, Percentage

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

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- Definition

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

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- Definition

Gross amount of debt extinguished.

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No definition available.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

The effective interest rate during the reporting period.

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- Definition

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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- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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- Definition

Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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No definition available.

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