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DEBT (Details)							1 Months Ended	3 Months Ended
DEBT (Details)	Apr. 13, 2018 USD ($)	Mar. 21, 2018 USD ($)	Oct. 31, 2017 USD ($)	Oct. 11, 2017 USD ($)	Aug. 17, 2017 USD ($)	Jun. 16, 2017 USD ($) item	Apr. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017
Debt
Effective rate on outstanding debt								20.90%		20.30%
Repayments of long-term debt									$ 102,647,000
Term loan, net Proceeds from borrowing									83,100,000
Long-term debt, net								$ 25,003,000		$ 24,304,000
Restricted cash								10,421,000		11,562,000
Amortization of deferred financing costs								$ 56,000	35,000
Revolving Credit Facility \| Maximum
Debt
Amortization of deferred financing costs									$ 100,000
Letters of credit
Debt
Cash collateral as percentage of face amount of letter of credit								105.00%
Interest rate on letters of credit issued under the revolving letter of credit sublimit											8.50%
Letters of credit \| Collateral For Letter Of Credit
Debt
Restricted cash								$ 9,300,000
Stand-by letters of credit
Debt
Outstanding letters of credit								8,800,000
Amounts drawn upon letters of credit								0
Surety bonds
Debt
Outstanding surety bond								32,000,000
Centre Lane Term Facility
Debt
Term loan, term						4 years 6 months
Term loan, closing date						Jun. 16, 2017
Term loan, maturity date						Dec. 16, 2021
Term loan, net Proceeds from borrowing					$ 15,300,000
Upfront fee (as a percent)						7.00%
Term loan, annual administrative fee						$ 25,000
Percentage of voting equity interests of domestic subsidiaries and certain specified foreign subsidiaries						100.00%
Percentage of voting equity interests of other directly owned foreign subsidiaries, subject to customary exceptions						65.00%
Term loan, voting equity interests description						The Company's obligations under the Centre Lane Facility are guaranteed by all of its wholly owned domestic subsidiaries, subject to customary exceptions. The Company's obligations are secured by first priority security interests on substantially all of its assets and those of its wholly owned domestic subsidiaries. This includes 100% of the voting equity interests of the Company's domestic subsidiaries and certain specified foreign subsidiaries and 65% of the voting equity interests of other directly owned foreign subsidiaries, subject to customary exceptions.
Term loan, mandatory prepayment						$ 500,000
Prepayment of aggregate principal amount, as percentage of excess cash flow						100.00%
Threshold business days \| item						5
Threshold consecutive days						90 days
Term loan						$ 45,000,000		25,832,000
Unamortized deferred financing fees								829,000		$ 900,000
Long-term debt, net								25,003,000
Centre Lane Term Facility \| Minimum voluntary prepayment
Debt
Term loan, periodic principal repayment						1,000,000
Centre Lane Term Facility \| Maximum
Debt
Amortization of deferred financing costs								$ 100,000
Centre Lane Term Facility \| Majority Shareholder
Debt
Term loan, Proceeds from related party debt						$ 6,000,000
Centre Lane Term Facility \| First Out Term Loan
Debt
Term loan, maturity date					Sep. 30, 2018
Upfront fee (as a percent)					7.00%
Term loan, exit fee (as a percent)					7.00%
Term loan					$ 10,000,000
Centre Lane Term Facility \| Payment In Cash \| LIBOR-based loans
Debt
Term loan, interest rate					9.00%
Centre Lane Term Facility \| Payment In Kind PIK \| LIBOR-based loans
Debt
Term loan, interest rate					10.00%
Centre Lane Term Facility \| Upfront Fee Payment In Kind PIK
Debt
Term loan, interest rate						19.00%
Centre Lane Term Facility Fourth Limited Waiver and Fourth Amendment
Debt
Incremental loan commitment	$ 3,000,000
Incremental loan commitment, minimum borrowing	$ 1,000,000
Incremental loan commitment, unused line fee (as a percent)	1.00%
Incremental loan commitment, exit fee	$ 500,000
Term loan, interest rate	50.00%
Prepayment requirement related to future extraordinary cash receipts, waived	$ 3,700,000
Centre Lane Term Facility Fourth Limited Waiver and Fourth Amendment \| LIBOR-based loans
Debt
Term loan, interest rate	19.00%
Discontinued operations disposed of by sale \| Mexico \| Mechanical Solutions
Debt
Net proceeds			$ 3,600,000
Discontinued operations disposed of by sale \| NETHERLANDS \| Mechanical Solutions
Debt
Net proceeds		$ 300,000
Discontinued operations disposed of by sale \| Centre Lane Term Facility \| Mechanical Solutions
Debt
Repayments of long-term debt				$ 34,000,000
Discontinued operations disposed of by sale \| Centre Lane Term Facility \| Mexico \| Mechanical Solutions
Debt
Repayments of long-term debt			$ 1,900,000
June 16, 2017 to June 16, 2018 \| Centre Lane Term Facility
Debt
Prepayment premium, percentage						3.00%
June 17, 2018 to June 16, 2019 \| Centre Lane Term Facility
Debt
Prepayment premium, percentage						2.00%
June 17, 2019 to June 16, 2020 \| Centre Lane Term Facility
Debt
Prepayment premium, percentage						1.00%
After June 16, 2020 \| Centre Lane Term Facility
Debt
Prepayment premium, percentage						0.00%
Westinghouse \| Services \| Subsequent Event
Debt
Sale of outstanding net receivable							$ 2,100,000