STOCKHOLDERS' EQUITY (Detail Textuals) - USD ($)		1 Months Ended	12 Months Ended
	Nov. 10, 2017	Apr. 30, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Aug. 30, 2016
Stockholders Equity Note [Line Items]
Proceeds from issuance of common stock, net of direct offering cost			$ 114,773,000	$ 28,368,000	$ 12,606,000
Direct offering cost					$ 394,000
Purchase and retirement of preferred stock				1,400,000
Value of preferred stock shares redeemed				2,672,000
Dividend paid				3,420,000
Value of preferred stock shares issued				$ 5,503,000
Number of restricted common stock vested			16,969	82,806
Common stock, par value			$ 0.01	$ 0.01
United States Marshals Office
Stockholders Equity Note [Line Items]
Purchase and retirement of preferred stock		$ 1,400,000
Share price per share		$ 11.30
Common stock, par value		$ 35.00
Class A Preferred Stock
Stockholders Equity Note [Line Items]
Number of shares issued on conversion					24,204
Number of shares forfeited by one of the shareholder				123,924
Number of preferred stock shares redeemed				267,120
Value of preferred stock shares redeemed				$ 3,000
Redemption price per share						$ 10.00
Dividend rate for period from issuance through redemption				8.00%
Preferred stock, par value			0.01	$ 0.01
Class B Preferred Stock
Stockholders Equity Note [Line Items]
Number of shares issued on conversion				60,000
Direct offering cost				$ 710,000
Preferred stock, par value			$ 0.01	$ 0.01
Number of preferred stock shares issued				272,636
Value of preferred stock shares issued				$ 3,000
Number of common stock shares issued via a rights offering				1,365,969
Value of common stock shares issued via a rights offering				$ 28,200,000
Number of common stock shares sold to directors				8,143
Value of common stock shares sold to directors				$ 170,000
Common Stock
Stockholders Equity Note [Line Items]
Number of shares issued on conversion				(60,000)	(13,447)
Number of common stock shares issued			3,565,000	1,374,112	722,222
Common Stock | IPO
Stockholders Equity Note [Line Items]
Number of common stock shares issued	3,100,000
Proceeds from issuance of common stock, net of direct offering cost	$ 115,000,000
Common stock, par value	$ 35.00
Number of additional shares issued	465,000
Common stock, par value for additional shares issued	$ 35.00
Additional Paid-in Capital (not required in Role # 470)
Stockholders Equity Note [Line Items]
Value of preferred stock shares redeemed				$ 2,624,000
Value of preferred stock shares issued				$ 5,500,000