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Subsequent Events (Details) - Cadence Credit Facility [Member] - USD ($) |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 11, 2017 | Oct. 31, 2018 | Sep. 25, 2018
Subsequent Event [Line Items] |  |  |
Loan Agreement, amount |  |  | $ 9,000,000
Maturity date | Dec. 31, 2020 |  |
Interest rate |  |  | 0.25%
Interest rate description |  |  | All borrowings under the Cadence Credit Facility bear interest at a variable rate based upon the Company’s election of (i) 3.0% plus the base rate, which is the highest of the (a) Federal Funds Rate plus 0.5%, (b) the Cadence bank publicly-announced prime rate, and (c) LIBOR plus 1.0%, or (ii) LIBOR, with a 0.125% floor, plus 4.0%. Interest is due at the end of each calendar quarter if the Company selects to pay interest based on the base rate and at the end of each LIBOR period if it selects to pay interest based on LIBOR.
Minimum liquidity amount |  |  | $ 2,500,000
Payment of debt issuance costs |  |  | $ 197,000
Subsequent Event [Member] |  |  |
Subsequent Event [Line Items] |  |  |
Loan Agreement, amount |  | $ 17,000,000 |
Maturity date |  | Dec. 31, 2021 |
Interest rate |  | 0.25% |
Interest rate description |  | All borrowings under the Cadence Credit Facility, as amended, bear interest at a variable rate based upon the Company’s election of (i) 2.5% plus the base rate, which is the highest of the (a) Federal Funds Rate plus 0.5%, (b) the Cadence bank publicly-announced prime rate, and (c) LIBOR plus 1.0%, or (ii) LIBOR, with a 0.250% floor, plus 3.5%. Interest is due at the end of each calendar quarter if the Company selects to pay interest based on the base rate and at the end of each LIBOR period if it selects to pay interest based on LIBOR. |
Minimum liquidity amount |  | $ 2,000,000 |
Maximum leverage ratio |  | 5.35:1 |
Minimum fixed charge coverage ratio |  | 1.25:1 |

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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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