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Debt, Amended Credit Facility and Term Loans (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2018 | Dec. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2018
Amended Credit Facility [Abstract] |  |  |  |
Debt issuance costs |  | $ 1,780,000 | $ 462,000 |
Summarized information about the term loan [Abstract] |  |  |  |
Less current portion of term loan |  | (3,685,000) |  | $ (3,068,000)
Long-term portion of term loan |  | 25,109,000 |  | 13,913,000
Term Loans [Member] |  |  |  |
Summarized information about the term loan [Abstract] |  |  |  |
Principal amount of term loan |  | 29,063,000 |  | 17,188,000
Unamortized financing fees |  | (269,000) |  | (207,000)
Net carrying amount of term loan |  | 28,794,000 |  | 16,981,000
Less current portion of term loan |  | (3,685,000) |  | (3,068,000)
Long-term portion of term loan |  | 25,109,000 |  | 13,913,000
Future repayments of the Term Loan, by fiscal year [Abstract] |  |  |  |
2019 - remaining three months |  | 938,000 |  |
2020 |  | 3,750,000 |  |
2021 |  | 3,750,000 |  |
2022 |  | 3,750,000 |  |
2023 |  | 3,750,000 |  |
Thereafter |  | 13,125,000 |  |
Total payments |  | $ 29,063,000 |  | $ 17,188,000
Amended Credit Facility [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Debt instrument, maturity date |  | Jun. 05, 2023 |  |
Debt issuance costs |  | $ 1,780,000 |  |
Amended Credit Facility [Member] | Minimum [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Facility fee on total leverage ratio |  | 0.375% |  |
Amended Credit Facility [Member] | Maximum [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Dividend payments, annual maximum amount permitted | $ 20,000,000 |  |  |
Facility fee on total leverage ratio |  | 0.50% |  |
Amended Credit Facility [Member] | LIBOR [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Reference interest rate under option 1, floor |  | 2.25% |  |
Interest rate over LIBOR rate under option 1 |  | 2.50% |  |
Interest rate above base rate under option 2 |  | 2.75% |  |
Amended Credit Facility [Member] | Reference Rate [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Reference interest rate under option 1, floor |  | 1.25% |  |
Interest rate over LIBOR rate under option 1 |  | 1.50% |  |
Interest rate above base rate under option 2 |  | 1.75% |  |
Amended Credit Facility [Member] | Revolving Facility [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Maximum borrowing capacity | 200,000,000 |  |  |
Interest rate at end of period |  | 4.97% |  |
Outstanding balance under revolving loan |  | $ 78,406,000 |  |
Amount available under revolving facility |  | 117,304,000 |  |
Amended Credit Facility [Member] | Revolving Facility [Member] | Canadian Borrowers [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Maximum borrowing capacity | 20,000,000 |  |  |
Amended Credit Facility [Member] | Revolving Facility [Member] | Letters of Credit [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Maximum borrowing capacity | 15,000,000 |  |  |
Outstanding balance under revolving loan |  | 879,000 |  |
Amended Credit Facility [Member] | Term Loans [Member] |  |  |  |
Amended Credit Facility [Abstract] |  |  |  |
Maximum borrowing capacity | $ 30,000,000 |  |  |
Quarterly principal payments |  | $ 937,500 |  |
Interest rate at end of period |  | 4.85% |  |

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- Definition Under the credit facility agreement, the entity is permitted an allowable dividend payment amount per calendar year, subject to a minimum availability threshold and pro forma compliance with financial covenants. + References No definition available. + Details
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- Definition The percentage points added to the reference rate to compute the variable rate on the debt instrument under option two of the credit agreement. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: 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 Reference 3: 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 4: 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 + Details
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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 The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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