CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Statement of Stockholders' Equity [Abstract]
Balance (shares)	8,205,234	4,633,012	8,196,310	4,604,563
Number of shares issued for net of forfeiture	8,987
Number of shares exercised for restricted stock vesting	63
Number of shares grants for net of forfeiture		28,449