EARNINGS PER SHARE - Earnings per Share (Details) - USD ($)		3 Months Ended								12 Months Ended
	Dec. 27, 2018	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Jan. 18, 2018	Dec. 27, 2016
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss)		$ 350,000	$ 4,353,000	$ (21,490,000)	$ 11,315,000	$ 8,891,000	$ (4,256,000)	$ (2,297,000)	$ 2,369,000	$ (5,471,462)	$ 4,706,961
Less dividends paid:
Dividends, Common Stock	$ 0									6,578,196	11,904,005
Preferred stock										3,528,588	3,522,036
Dividends										10,106,784	15,426,041
Undistributed earnings										$ (15,578,246)	$ (10,719,080)
Incremental Common Shares Attributable to Dilutive Effect of Call Options and Warrants										0	0
Weighted average number of shares of common stock outstanding (in shares)		23,687,664	23,687,273	23,683,164	23,392,387	22,142,926	22,139,258	18,297,500	17,539,258	23,613,636	20,048,128
Common Stock
Less dividends paid:
Distributed earnings (in dollars per share)										$ 0.28	$ 0.60
Undistributed earnings (deficit) (in dollars per share)										(0.66)	(0.54)
Total (in dollars per share)										(0.38)	0.06
Unvested Share Based Payment Awards
Less dividends paid:
Distributed earnings (in dollars per share)										0.28	0.60
Undistributed earnings (deficit) (in dollars per share)										(0.66)	(0.54)
Total (in dollars per share)										$ (0.38)	$ 0.06
XL Investments
Less dividends paid:
Common stock shares into which warrants may be converted (in shares)												3,753,492	3,753,492