Stockholders’ Equity (Details Textual) - USD ($)		1 Months Ended		3 Months Ended	9 Months Ended		12 Months Ended
	Apr. 05, 2017	Feb. 14, 2017	Mar. 14, 2016	Sep. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Capital Stock Shares Authorized				120,000,000	120,000,000
Capital Stock par or Stated Value Per Share				$ 0.01	$ 0.01
Common Stock, Shares Authorized				79,999,997	79,999,997		79,999,997
Common Stock, Par or Stated Value Per Share				$ 0.01	$ 0.01		$ 0.01
Preferred Stock, Shares Authorized				2	2		2
Preferred Stock, Par or Stated Value Per Share				$ 0.01	$ 0.01		$ 0.01
Special Stock, Par or Stated Value Per Share				$ 0.01	$ 0.01		$ 0.01
Stock Issued During Period, Value, New Issues					$ 40,561,000
Common Stock, Shares, Issued				36,806,915	36,806,915		30,679,566
Common Stock, Shares, Outstanding				31,451,796	31,451,796		25,663,820
Payment to Majority Shareholder			$ 6,900,000
Proceeds from Issuance of Common Stock					$ 40,561,000	$ 0
Common Stock [Member]
Stock Issued During Period, Value, New Issues					$ 55,000
Stock Issued During Period, Shares, New Issues					5,472
At-The-Market Equity Offering Program [Member]
Stock Issued During Period, Value, New Issues				$ 0	$ 23,000
Stock Issued During Period, Shares, New Issues				0	2,492
Stock Issuance Program, Maximum Amount Authorized							$ 12,000,000
Payments for Brokerage Fees							$ 218,000
Shares Issued, Price Per Share				$ 9.32	$ 9.32		$ 9.76
Stock Issuance Program, Remaining Amount Authorized				$ 10,800,000	$ 10,800,000
At-The-Market Equity Offering Program [Member] | Common Stock [Member]
Stock Issued During Period, Value, New Issues							$ 1,200,000
Stock Issued During Period, Shares, New Issues							120,299
Rights Offering [Member]
Stock Issued During Period, Shares, New Issues	1,884,564
Shares Issued, Price Per Share	$ 7.50
Proceeds from Issuance of Common Stock	$ 14,100,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues		3,585,000
Shares Issued, Price Per Share		$ 7.50
Proceeds from Issuance of Common Stock		$ 26,900,000
Series A and Series B preferred stock [Member]
Preferred Stock, Par or Stated Value Per Share				$ 0.01	$ 0.01
Blank Check Preferred Stock [Member]
Preferred Stock, Shares Authorized				40,000,000	40,000,000		40,000,000