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Credit Facility (Details) - Revolving Credit Facility | 9 Months Ended |
--- | --- | ---
Sep. 30, 2018 USD ($) loan | Dec. 31, 2017 USD ($)
Line of Credit Facility [Line Items] |  |
Aggregate credit agreement commitment | $ 30,000,000 |
Potential increase in borrowing capacity | 20,000,000 |
Potential maximum borrowing capacity | $ 50,000,000 |
Borrowing base, component, % of eligible accounts receivable | 80.00% |
Borrowing base, component, % of eligible inventory | 50.00% |
Borrowing base, allowable share of total commitment amount attributable to inventory component | 50.00% |
Borrowing base, component, % of eligible equipment inventory | 75.00% |
Borrowing base amount available | $ 29,500,000 |
Weighted average interest rate | 3.50% |
Default trigger, certain defaults of other company indebtedness, amount | $ 50,000 |
Default trigger, rendering of certain judgments, amount | 150,000 |
Line of credit balance | $ 417,000 | $ 417,000
LIBOR Rate |  |
Line of Credit Facility [Line Items] |  |
Reference rate, number of allowable LIBOR-based borrowings outstanding | loan | 3 |
Variable rate, applicable margin | 1.50% |
CB Floating Rate |  |
Line of Credit Facility [Line Items] |  |
Variable rate, applicable margin | 1.50% |
Minimum |  |
Line of Credit Facility [Line Items] |  |
Minimum commitment coverage ratio allowed | 2.00 |
Maximum |  |
Line of Credit Facility [Line Items] |  |
Maximum leverage ratio allowed | 2.50 |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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