STOCKHOLDERS' EQUITY AND EARNINGS PER SHARE (Details Textual)				3 Months Ended	12 Months Ended
	Apr. 11, 2017 USD ($) shares	Jun. 30, 2016 $ / shares	Jun. 30, 2015 $ / shares	Jun. 30, 2017 shares	Dec. 31, 2017 USD ($) fiscal_quarter $ / shares shares	Dec. 31, 2016 USD ($) $ / shares shares	Dec. 31, 2015 shares	Dec. 31, 2014 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Stock-Based Compensation Amortization | $					$ 723,000	$ 802,000
Redeemable Convertible Preferred Stock, shares issued					8,200,000	8,200,000
Convertible Preferred Stock, Shares Issued upon Conversion					8,200,000
Preferred distribution rate					8.00%
Preferred Stock Dividend Rate Percentage Additional Shares					8.00%
Preferred dividends per share (in dollars per share) | $ / shares					$ (0.13)	$ (0.13)
Preferred Stock, Value, Issued | $					$ 26,400,000
Preferred Stock Redemption Premium | $					$ 13,200,000
Preferred Stock Redemption Premium, Amortization Period					5 years
Deemed Dividend on Redeemable Convertible Preferred Stock | $					$ 2,716,000	$ 2,505,000
Preferred Stock Optional Redemption Percentage					15.00%
Convertible Preferred Stock, Term of Conversion, Ratio Used to Determine Conversion Price					2.25
Payments for purchase of treasury stock | $					$ 338,000	$ 0
Certificate of Designation Restrictive Covenants, Judgment Threshold | $					$ 2,000,000
Maximum Aggregate Budget Line Item Without Approval, Percent					103.00%
Options granted (in shares)					116,830	324,500
Exercise price of shares granted (in dollars per share) | $ / shares					$ 0.00	$ 0.00
Forfeitures in period (in shares)					0	87,500
Shares outstanding					1,055,497	938,667	701,667
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares					854,667
Warrant or right, outstanding					2,000,000
Cash dividend on redeemable convertible preferred stock | $					$ (2,140,000)	$ (2,146,000)
Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance					2,700,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized					3,300,000
Stock Incentive Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period					3 years
Fair per share granted (in dollars per share) | $ / shares					$ 0.70
Options granted (in shares)					116,830
Exercise price of shares granted (in dollars per share) | $ / shares					$ 1.13
Forfeitures in period (in shares)					0
Share-based compensation cost not yet recognized | $					$ 400,000
Period of recognition					150 days
2014 Non-Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance								300,000
Deferred Compensation Arrangement with Individual, Annual Grant of Restricted Common Stock, Value | $					$ 20,000
SRE Monarch [Member] | Series B-2 Purchase Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reimbursement of expenses | $	$ 300,000
Common Class B1, B2 and B3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Predetermined Lapse Internal One in Transfer Restriction Term					6 months
Predetermined Lapse Internal Two in Transfer Restriction Term					9 months
Predetermined Lapse Internal Three in Transfer Restriction Term					12 months
Length of Period After Initial Public Offering in Conversion Term					5 months
Threshold Percentage of Offering Price in Initial Public Offering in Conversion Term (Greater than 125%)					125.00%
Length of Period to Reach Threshold Percentage of Offering Price in Initial Public Offering in Conversion Term					20 days
Common Class B1 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class C Common Stock Conversion Percentage (in percentage)					25.00%
Common Class B2 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class C Common Stock Conversion Percentage (in percentage)					25.00%
Common Class B3 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class C Common Stock Conversion Percentage (in percentage)					50.00%
Common Class B4 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Length of Period After Initial Public Offering in Conversion Term					4 years
Convertible conversion rate					1
Threshold Book Value of Entity in Transfer Restriction Term | $					$ 730,400,000
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of Stock, Shares Issued					8,200,000
Series B-1 and B-2 Cumulative Convertible Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable Convertible Preferred Stock, shares issued								8,200,000
Deemed dividend on redeemable convertible preferred stock | $								$ 26,400,000
Series B Preferred Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred Stock, Redemption, Minimum Percentage of Share Holders					85.00%
Preferred Stock, Redemption Price, Percentage					150.00%
Preferred Stock, Redemption Notice					30 days
Preferred stock, liquidation preference, percent					150.00%
Preferred Stock, Redemption Amount | $					$ 39,600,000
Threshold of Gross Proceeds of Underwritten Public Offering in Conversion Terms | $					$ 75,000,000
Preferred Stock, Vote on As-Converted, Minimum Percent of Original Issue					50.00%
Preferred Stock, Trigger for Redemption, Number of Quarters Dividends Not Paid in Full | fiscal_quarter					2
Preferred Stock, Redemption Period After Trigger for Redemption					180 days
Common Class B [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Special Dividends Payable Amount Per Share (in dollars per share) | $ / shares					$ 0.95
Special Dividends, Share Holding Period					12 months
Common Class B [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Threshold Amount of New Equity Securities Issued in Conversion Term | $					$ 50,000,000
Threshold Maturity Term of New Indebtedness in Conversion Term					1 year
Common Class C [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum Percentage Of Net Proceeds Used In Pro Rata Redemption (in percentage)					30.00%
Maximum Net Proceeds Used In Pro Rata Redemption | $					$ 50,000,000
Common Class D [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Length of Period After Initial Public Offering in Conversion Term					12 months
Length of Period Prior to Representation Submitted by Shareholder in Conversion Term					90 years
Conversion of Stock, Shares Issued					1
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeitures in period					0	76,608
Vesting period					3 years
Shares, Granted					469,097	86,207
Stock-Based Compensation (in shares)					22,279
Treasury stock purchase (in shares)					196,278
Payments for purchase of treasury stock | $					$ 300,000
Stock Repurchased During Period, Value | $					$ 200,000
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding, Number					791,510	889,456	1,265,000
Stock-based compensation expense | $					$ 100,000
Deferred Compensation Arrangement with Individual, Shares Authorized for Issuance					425,453
Restricted Stock [Member] | Stock Incentive Plan 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Approved but unissued restricted common stock					86,207
Forfeitures in period					9,942
Shares Paid for Tax Withholding for Share Based Compensation					3,137
Restricted Stock [Member] | 2014 Non-Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Granted					116,772
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value | $ / shares		$ 1.13	$ 1.74
Restricted Stock [Member] | Certain Executives
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Granted					262,309
Restricted Stock [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Granted							850,000
Restricted Stock [Member] | Chief Financial Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years				3 years
Shares, Granted	100,000			100,000	50,000
Shares issued net of tax withholdings					79,324
Share-based Compensation Award, Tranche One [Member] | Restricted Stock [Member] | 2014 Non-Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Vested					45,976
Share-based Compensation Award, Tranche Two [Member] | Restricted Stock [Member] | 2014 Non-Employee Director Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Vested					70,796
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation (in shares)				73,128	527,383	385,142